Projet résidentiel et hospitality sur la Côte d’Azur
Suivi de chantier — lecture des plans et contrôle de l’exécution
Projet tertiaire
Approche transverse DH · ARC-HÉLIA
French Riviera · Monaco · France

Your Project Management

Your Project Management

& Construction Expertise
New Build Renovation Refurbishment

Independent Advice · Coordination · Project Management

An independent technical partner to understand your needs, assemble the right team from a trusted network of architects, engineering consultants, experts and specialist contractors, coordinate design and oversee construction through to handover. We also provide targeted technical support during design or construction for owners, architects, project managers, developers and contractors.

Explore our services →Tell us about your projectYour profile →
Une expérience de plus de 25 ans au service de vos projets

DH · ARC-HÉLIA

An independent technical contact to understand your needs, build the right team, manage design and check construction through handover.

Over 25 years of construction experience and a trusted network of architects, engineering consultants, experts and specialist contractors.

Services

Owner’s Rep · Client Representation · Project ManagementStep in from the earliest stage: define the need, build the team, support and review the design, then manage, monitor and control execution through handover and key delivery.Technical Audit · Due Diligence · Technical ReviewPre-works, pre-sale or pre-acquisition assessment, due diligence and technical advice to understand an asset, its risks and the actions to plan.Technical Support · Expert Reviews · Complex SituationsAnalyse a technical issue, loss event or compliance concern, identify the right reference framework, prepare a reasoned response and mobilise the appropriate specialist.

Who are you?

Syndic / copropriétéDiagnostic & expertise bâtiment · Fissures · Infiltrations · Sinistres · TravauxClient privé / propriétaireConstruction & rénovation · Accompagnement de projet · Expertise bâtiment · RéceptionArchitecteConception technique · BET · Réglementation · Coordination · Suivi d’exécutionMaître d’œuvre / MOEXRenfort chantier · EXE · Coordination · Conformité · RéceptionInvestisseur / marchand de biens / acquéreurDue diligence · Risques techniques · Faisabilité · Travaux · Pré-acquisitionPromoteur / maître d’ouvrage professionnelRenfort technique · Conception · DCE · Pilotage · Travaux · LivraisonAMO professionnelRenfort technique · Relais local · Audit · Études · ChantierHôtelier / groupe hôtelier / exploitantAudit technique · Rénovation · ERP · Site occupé · TravauxAgence immobilière / conseil immobilierAvis technique · Fissures · Risques bâtiment · Avant vente / acquisitionContractant généralÉtudes & chiffrage · Conception technique · BET · Exécution · RéceptionEntrepriseÉtudes techniques · Conformité · DTU / ATec · Exécution · Points bloquantsPrescripteur / partenaire professionnelBesoin qualifié · Compétence adaptée · Réseau · Équipe projetDesigner / agenceur / fournisseur / installateurAppui technique · Interfaces bâtiment · Intervention sur site · Réseau

Expertise

Inspection de façade et analyse structurelle sur plans et écran
A technical understanding of the building

From on-site inspection to review of technical studies, to inform your decisions.

Fire Safety & Public-Access BuildingsFire-safety statements, regulatory review, control comments and technical interfaces.AccessibilityAccessibility statements, inclusive-design review, routes, equipment and overall project consistency.StructureReview of assumptions, calculations, drawings, execution details and interfaces.Thermal · Acoustics · MEPConsistency review of performance studies and technical systems.Calculations & execution detailsReview of assumptions, consistency with the actual project and points requiring justification.Defects & Expert ReviewsDefects, losses, amicable or court-appointed expert proceedings, providing technical support to a party.Technical surveys & pre-acquisitionAll-trades technical assessment before works, sale, acquisition, auction or refurbishment.Technical Due DiligenceAssess the technical risks of an asset before committing.Assessment Before Buying at AuctionAssess a property’s technical viability to inform your bid.Technical Feasibility Before WorksCheck possibilities and constraints before starting your project.

Projects

A network of expertise built over more than 20 years.

DH · ARC-HÉLIA draws on a strong network of architects, engineering consultants, experts, cost consultants, specifiers and specialist contractors, mainly based on the French Riviera. According to the needs of the client and the project, we define a tailored approach to assemble or complement the team.

DH · ARC-HÉLIA manages and coordinates the specialists involved. Its cross-disciplinary technical understanding enables it to understand each specialist’s studies, cross-check analyses, organise discussions and advise on solutions, helping maintain project consistency from design through construction to handover.

Construction · Project Management · Works Inspections

During the works, DH · ARC-HÉLIA attends site meetings, follows progress, decisions and actions, anticipates client-requested changes and helps unblock technical issues before they become critical. The assignment combines owner-side project management, technical support and control of consistency between design and execution through handover.

Client, architect, contractors, consultants, technical control, authorities and experts: DH · ARC-HÉLIA helps answer requests, understand comments and build a coherent technical response.

Why DH · ARC-HÉLIA?

DH · ARC-HÉLIA relies on a trusted network of architects, engineering consultants, experts, cost consultants and specialist contractors, built through more than twenty years of projects.

For each operation, the right skills are brought together to form a coherent, immediately operational team, from design through to construction.

A global view from the first decision through construction.

Over 25 years of construction experience on the French Riviera, including more than 19 years as a building technical inspector, have developed a cross-disciplinary understanding of projects: regulations, structure, envelope, finishes, building services, interfaces and construction. This background helps assess specialist studies, challenge inconsistencies and identify when the right expert is needed.

DH · ARC-HÉLIA can step in from the outset to build the team, join an already-designed project to take over management, or provide targeted audit, assessment, expert review and decision support.

Contact

Tell us about your projectA few questions to prepare our discussion. Quick contactAsk a question or simply get in touch.
+33 6 28 93 52 46contact@dh-arc-helia.fr

Your project in a few questions

A few details are enough to prepare a useful first discussion.

Project brief5 essential details
Your contact details
Prefer to keep it simple?Just enter your name and phone number above.
Your technical point of entryYou come with an idea, an asset, an already-designed project or a technical issue. DH · ARC-HÉLIA identifies the skills required, builds the right team and organises what comes next.
Hospitality & public-access buildingsOperations · refurbishment · safety
Villas & residentialNew build · refurbishment
Commercial propertyOffices · assets · transformations
Complex projectsInterfaces · risks · technical environments
Three clear entry points

What DH · ARC-HÉLIA actually does.

Three clear services: manage a project, understand an asset, or resolve a technical situation.

AMO et pilotage
01 · Core service

Owner’s Rep · Client Representation · Project Management

Step in from the earliest stage: define the need, build the team, support and review the design, then manage, monitor and control execution through handover and key delivery.

Explore the service →
Audit et due diligence
02 · Decide before acting

Technical Audit · Due Diligence · Technical Review

Pre-works, pre-sale or pre-acquisition assessment, due diligence and technical advice to understand an asset, its risks and the actions to plan.

See our approach →
Appui technique et expertise
03 · Resolve a situation

Technical Support · Expert Reviews · Complex Situations

Analyse a technical issue, loss event or compliance concern, identify the right reference framework, prepare a reasoned response and mobilise the appropriate specialist.

See the situations we handle →
Your role determines the most relevant support.
Project ecosystem

A network of expertise built over more than 20 years.

DH · ARC-HÉLIA draws on a strong network of architects, engineering consultants, experts, cost consultants, specifiers and specialist contractors, mainly based on the French Riviera. According to the needs of the client and the project, we define a tailored approach to assemble or complement the team.

DH · ARC-HÉLIA manages and coordinates the specialists involved. Its cross-disciplinary technical understanding enables it to understand each specialist’s studies, cross-check analyses, organise discussions and advise on solutions, helping maintain project consistency from design through construction to handover.

Écosystème de projet DH · ARC-HÉLIA : architectes, bureaux d’études, experts, économistes et entreprises spécialisées
A project team assembled to suit the needs of each operation.
Why DH · ARC-HÉLIA exists

Born from a real-world observation on the French Riviera.

Owners, investors and project sponsors may arrive with an ambition, a site or a building, but sometimes without an established team. DH · ARC-HÉLIA can become their first technical point of contact.

Understand the project first. Then identify, select and bring together around the client the skills genuinely suited to its type, ambition and constraints.

Architect, engineering consultant, cost consultant, technical control, H&S coordinator, geotechnical engineer, contractors or specialist: the team is built around the project. It is then managed with a cross-disciplinary technical view from design through construction.

Équipe de projet autour de plans
A team built around the projectArchitects · Engineers · Consultants · Contractors · Technical control · H&S coordinators · Cost consultants · Specialists
Access by profile

Who are you?Different organisations have different needs.

Choisissez votre profil pour découvrir les interventions techniques qui vous concernent.

Équipe projet réunie autour d’un projet de construction
Direct access based on your needs

Each stakeholder expects something different from technical support.

S

Syndic / copropriété

Diagnostic & expertise bâtiment · Fissures · Infiltrations · Sinistres · Travaux

Open →
C

Client privé / propriétaire

Construction & rénovation · Accompagnement de projet · Expertise bâtiment · Réception

Open →
A

Architecte

Conception technique · BET · Réglementation · Coordination · Suivi d’exécution

Open →
M

Maître d’œuvre / MOEX

Renfort chantier · EXE · Coordination · Conformité · Réception

Open →
I

Investisseur / marchand de biens / acquéreur

Due diligence · Risques techniques · Faisabilité · Travaux · Pré-acquisition

Open →
P

Promoteur / maître d’ouvrage professionnel

Renfort technique · Conception · DCE · Pilotage · Travaux · Livraison

Open →
A

AMO professionnel

Renfort technique · Relais local · Audit · Études · Chantier

Open →
H

Hôtelier / groupe hôtelier / exploitant

Audit technique · Rénovation · ERP · Site occupé · Travaux

Open →
A

Agence immobilière / conseil immobilier

Avis technique · Fissures · Risques bâtiment · Avant vente / acquisition

Open →
C

Contractant général

Études & chiffrage · Conception technique · BET · Exécution · Réception

Open →
E

Entreprise

Études techniques · Conformité · DTU / ATec · Exécution · Points bloquants

Open →
P

Prescripteur / partenaire professionnel

Besoin qualifié · Compétence adaptée · Réseau · Équipe projet

Open →
D

Designer / agenceur / fournisseur / installateur

Appui technique · Interfaces bâtiment · Intervention sur site · Réseau

Open →
Cross-disciplinary review

Technical expertise, available at the right time.

Each topic opens a dedicated page. The home page stays simple; detail appears only when you need it.

Inspection de façade et analyse structurelle sur plans et écran
A technical understanding of the building

From on-site inspection to review of technical studies, to inform your decisions.

F

Fire Safety & Public-Access Buildings

Fire-safety statements, regulatory review, control comments and technical interfaces.

Open page →
A

Accessibility

Accessibility statements, inclusive-design review, routes, equipment and overall project consistency.

Open page →
S

Structure

Review of assumptions, calculations, drawings, execution details and interfaces.

Open page →
P

Thermal · Acoustics · MEP

Consistency review of performance studies and technical systems.

Open page →
Σ

Calculations & execution details

Review of assumptions, consistency with the actual project and points requiring justification.

Open page →
E

Defects & Expert Reviews

Defects, losses, amicable or court-appointed expert proceedings, providing technical support to a party.

Open page →
D

Technical surveys & pre-acquisition

All-trades technical assessment before works, sale, acquisition, auction or refurbishment.

Open page →
08

Technical Due Diligence

Assess the technical risks of an asset before committing.

Open page →
09

Assessment Before Buying at Auction

Assess a property’s technical viability to inform your bid.

Open page →
10

Technical Feasibility Before Works

Check possibilities and constraints before starting your project.

Open page →
Project sectors

The same level of rigour across very different projects.

From residential to hospitality, commercial property to technical environments, the approach remains the same — understand, secure, coordinate.

Hôtels, resorts, actifs exploités & ERP
Hospitality · Public-access buildings

Hotels, resorts, operating assets & public-access buildings

Villas, réhabilitation & opérations exigeantes
Residential

Villas, refurbishment & demanding projects

Bureaux & tertiaire
Commercial property

Offices & commercial buildings

Industrie · Data Center
Technical environments

Industry · Data Centres

FF&E · OS&E
Hospitality · interior fit-out

FF&E · OS&E

Works monitoring · technical owner representation · execution control

Represent the client and manage the project, from the first decision through key handover.

During the works, DH · ARC-HÉLIA attends site meetings, follows progress, decisions and actions, anticipates client-requested changes and helps unblock technical issues before they become critical. The assignment combines owner-side project management, technical support and control of consistency between design and execution through handover.

Infographie chantier détaillant les points de contrôle d’un bâtiment d’habitation collective
Présence chantier et contrôle d’exécution
Site presenceMonitor, arbitrate, respond and get issues corrected.

Client, architect, contractors, consultants, technical control, authorities and experts: DH · ARC-HÉLIA helps answer requests, understand comments and build a coherent technical response.

The large image provides a detailed view of sensitive issues. The smaller image retains the site’s quieter atmosphere and on-site presence.

Behind the finished surface

Structure, acoustic underlayers, services, waterproofing, openings, fixings, thermal-bridge details, drainage and execution details remain critical once they are no longer visible.

01Management & meetings

Site meetings, follow-up of decisions and actions, progress, blocking issues, owner decisions and project adaptation while changes can still be made in time.

02Technical support & responses

Technical responses to site stakeholders: fire safety, accessibility, concrete or timber structure, envelope, waterproofing, building services and regulatory compliance.

03All-trades execution control

All-trades execution control: foundations, reinforcement, structure, windows, drainage, partitions, linings, wet areas, acoustics, plumbing, HVAC, services and interfaces.

04Costs · changes · handover

Review and challenge of changes and variation requests, support for technical and financial decisions, pre-handover, punch lists, close-out and support through handover.

Method

Understand. Build. Manage. Control.

The value lies in giving the client a single point of support able to organise the right expertise, challenge the design and remain present on site through handover.

01

Understand

Objectives, use, constraints, risks, budget, schedule and expected level of involvement.

02

Build the team

Mobilise the skills suited to each project through a trusted network of architects, engineering consultants, experts and specialist contractors.

03

Manage

Design, studies, decisions, tenders, costs, schedules and interfaces between participants.

04

Control

All-trades execution, sensitive points, compliance, quality, punch lists and handover.

Approche transverse DH · ARC-HÉLIA — anticiper, coordonner, fédérer
The culture behind DH · ARC-HÉLIA

A global view from the first decision through construction.

More than twenty-five years of professional construction experience have built a cross-disciplinary view of projects: regulations, structure, envelope, fit-out, technical systems, interfaces and site execution. This background helps understand specialist studies, challenge inconsistencies and know when to bring in the right expert.

DH · ARC-HÉLIA can step in from the outset to build the team, join an already-designed project to take over management, or provide targeted audit, assessment, expert review and decision support.

25+ years of construction experienceDesign & all-trades constructionFrench Riviera / Monaco networkHospitality · Residential · Commercial · Technical
Portrait professionnel
Your project in a few questions

Where should you start?

A few details are enough to understand your needs and prepare a useful first discussion. You can keep it very concise; details can follow later.

A short brief, not a form-filling exercise. Project type, requested service, location, floor area and project stage are enough for an initial orientation.

The form is sent directly to DH · ARC-HÉLIA. Your email application will not open.

Project brief5 essential details
Your contact details
Prefer to keep it simple?Just enter your name and phone number above.
Tell us about your projectA few questions to prepare our discussion. Quick contactAsk a question or simply get in touch.
Contact

A project, asset or technical issue to secure?

An initial discussion with DH · ARC-HÉLIA is often enough to determine whether the need calls for a full assignment, an audit or simply targeted support.

DH · ARC-HÉLIAFrench Riviera · Monaco · travel according to assignment
+33 6 28 93 52 46contact@dh-arc-helia.frwww.dh-arc-helia.fr
Direct access

What DH · ARC-HÉLIA can bring to you.

Un accompagnement adapté à votre métier et au niveau de soutien technique dont vous avez besoin.

Each participant has different priorities. Select your profile to explore the support relevant to you.

Syndic / copropriété
DH · ARC-HÉLIASyndic / copropriété
Your context

Syndic / copropriété

DH · ARC-HÉLIA réalise des diagnostics et analyses techniques du bâtiment : sécurité apparente des ouvrages, façades, balcons, garde-corps, fissures, infiltrations, étanchéité et autres désordres. L’intervention peut également comprendre l’analyse de rapports et devis, l’identification des travaux nécessaires, la mobilisation de spécialistes et leur coordination jusqu’à la réception, afin d’éclairer les décisions de la copropriété.

  • Diagnostic global ou avant travaux de l’immeuble.
  • Analyse des risques et points sensibles concernant la sécurité apparente des ouvrages et des parties communes.
  • Diagnostic visuel des façades, balcons, terrasses, garde-corps, couvertures et étanchéités.
  • Fissures, mouvements, désordres structurels apparents et recherche des causes probables.
  • Infiltrations, humidité et autres pathologies du bâtiment.
  • Lecture et analyse de rapports, expertises, devis et solutions techniques proposées.
  • Assistance lors d’un sinistre, d’une expertise amiable ou d’un désaccord technique.
  • Hiérarchisation des urgences et définition des travaux à envisager.
  • Appui technique aux décisions du syndic, du conseil syndical et de l’assemblée générale.
  • Recherche et mobilisation d’architectes, BET, experts, entreprises et spécialistes.
  • Coordination des intervenants et suivi technique des travaux selon mission.
  • Réserves et accompagnement jusqu’à la réception.
Réseau mobilisable · DH · ARC-HÉLIA peut identifier, mobiliser et, selon la mission, piloter les compétences complémentaires adaptées au besoin.
Discuss this need →
Client privé / propriétaire
DH · ARC-HÉLIAClient privé / propriétaire
Your context

Client privé / propriétaire

DH · ARC-HÉLIA intervient pour un diagnostic ponctuel ou pour accompagner un projet de construction, d’extension ou de rénovation. Pour un propriétaire éloigné, étranger ou sans réseau local, l’intervention peut comprendre la recherche d’un architecte et des bons professionnels, la constitution de l’équipe, la coordination des études et le suivi technique des travaux jusqu’à la réception.

  • Analyse du besoin, du site et des contraintes techniques.
  • Recherche et sélection d’architectes, BET, économistes, entreprises et spécialistes.
  • Constitution de l’équipe de projet et organisation des interventions.
  • Accompagnement technique de la construction, de l’extension ou de la rénovation.
  • Revue des études, plans, devis, variantes et solutions constructives.
  • Aide aux consultations et à l’analyse des propositions des entreprises.
  • Représentation technique et suivi du projet pour un propriétaire éloigné ou à l’étranger.
  • Coordination technique des études et des interfaces selon mission.
  • Visites et suivi technique du chantier, compte rendu des points sensibles.
  • Diagnostic visuel des fissures, infiltrations, humidité ou malfaçons.
  • Avis avant achat, expertise amiable et assistance en cas de désaccord.
  • Pré-réception, réserves et réception.
Réseau mobilisable · DH · ARC-HÉLIA peut identifier, mobiliser et, selon la mission, piloter les compétences complémentaires adaptées au besoin.
Discuss this need →
Architecte
DH · ARC-HÉLIAArchitecte
Your context

Architecte

DH · ARC-HÉLIA intervient au niveau de soutien souhaité par l’architecte : sur un point technique précis, en renfort sur une phase du projet ou plus largement lorsqu’il souhaite se concentrer sur sa vision architecturale et sa relation client. En collaboration avec lui, l’intervention peut couvrir la conception technique, l’équipe BET, la réglementation, la préparation du chantier et le suivi de l’exécution jusqu’à la réception.

  • Diagnostic de l’existant et identification des contraintes.
  • Conception et analyse technique du projet, en complément de l’architecte.
  • Anticipation des difficultés avant chantier et analyse des principes constructifs.
  • Recherche, sélection et coordination des BET et spécialistes.
  • Pilotage et revue de cohérence des études techniques.
  • Lecture des notes de calcul, plans, détails et interfaces entre lots.
  • Sécurité incendie, accessibilité et réglementation applicable.
  • Analyse et traitement des observations du bureau de contrôle.
  • DTU, normes, ATec, DTA, ATEx, ETN et procédés particuliers.
  • Appui technique aux consultations et à l’analyse des offres.
  • Préparation et coordination technique de la phase travaux.
  • Suivi d’exécution, visites chantier et traitement des non-conformités.
  • Pré-réception, réserves et accompagnement à la réception.
Réseau mobilisable · DH · ARC-HÉLIA peut identifier, mobiliser et, selon la mission, piloter les compétences complémentaires adaptées au besoin.
Discuss this need →
Maître d’œuvre / MOEX
DH · ARC-HÉLIAMaître d’œuvre / MOEX
Your context

Maître d’œuvre / MOEX

DH · ARC-HÉLIA renforce les équipes de maîtrise d’œuvre sur un sujet technique, une période de surcharge ou une phase plus étendue de l’opération. L’appui peut concerner l’analyse des études d’exécution, les interfaces TCE, la coordination des BET et entreprises, la présence sur chantier et le traitement des difficultés techniques, jusqu’à la réception selon la mission confiée.

  • Revue des études, plans et documents d’exécution.
  • Lecture technique des interfaces entre corps d’état.
  • Analyse des solutions constructives et des points sensibles.
  • Appui au suivi technique de l’exécution et aux visites de chantier.
  • Coordination technique avec BET, entreprises et bureau de contrôle.
  • Participation aux réunions et suivi des actions techniques.
  • Analyse des observations, non-conformités et points bloquants.
  • Revue technique des travaux modificatifs et des conséquences sur les autres lots.
  • Vérification ciblée de la cohérence entre plans et réalisation.
  • Appui à la préparation de la réception et aux OPR.
  • Suivi des réserves et des corrections jusqu’à la réception.
Réseau mobilisable · DH · ARC-HÉLIA peut identifier, mobiliser et, selon la mission, piloter les compétences complémentaires adaptées au besoin.
Discuss this need →
Investisseur / marchand de biens / acquéreur
DH · ARC-HÉLIAInvestisseur / marchand de biens / acquéreur
Your context

Investisseur / marchand de biens / acquéreur

DH · ARC-HÉLIA accompagne l’investisseur avant ou après l’acquisition : due diligence, visite technique, analyse de l’état apparent, des risques, des contraintes et des travaux envisageables. Selon le besoin, la mission se poursuit par l’étude de faisabilité d’une transformation, la mobilisation des spécialistes et la coordination technique de l’opération.

  • Due diligence technique et avis pré-acquisition, y compris avant enchères.
  • Visite et analyse technique de villas, immeubles, hôtels, bureaux ou autres actifs.
  • Analyse structurelle apparente, fissures, enveloppe et infiltrations.
  • Revue des diagnostics, plans, études et documents disponibles.
  • Identification des risques techniques et contraintes réglementaires.
  • Identification des inconnues et investigations complémentaires.
  • Analyse des travaux probables et hiérarchisation des interventions.
  • Première appréciation de la faisabilité d’une restructuration ou réhabilitation.
  • Recherche et mobilisation des BET et spécialistes adaptés.
  • Constitution de l’équipe et accompagnement technique post-acquisition.
Réseau mobilisable · DH · ARC-HÉLIA peut identifier, mobiliser et, selon la mission, piloter les compétences complémentaires adaptées au besoin.
Discuss this need →
Promoteur / maître d’ouvrage professionnel
DH · ARC-HÉLIAPromoteur / maître d’ouvrage professionnel
Your context

Promoteur / maître d’ouvrage professionnel

DH · ARC-HÉLIA peut renforcer les équipes de maîtrise d’ouvrage dès l’amont, sur une phase ponctuelle ou tout au long d’une opération : analyse des risques, revue de conception, coordination des architectes et BET, consultations, arbitrages techniques, suivi des travaux et livraison. L’objectif est d’apporter un relais technique transversal, immédiatement mobilisable selon les besoins du projet.

  • Analyse de faisabilité et des risques techniques en amont.
  • Diagnostic ou audit de l’existant.
  • Revue APS, APD, PRO, DCE et pièces techniques selon dossier.
  • Définition des compétences nécessaires et constitution de l’équipe.
  • Coordination architectes, BET, contrôle technique et spécialistes.
  • Analyse technique des consultations, offres et variantes.
  • Suivi des points de conception et des interfaces sensibles.
  • Appui aux arbitrages techniques et aux décisions de la maîtrise d’ouvrage.
  • Représentation technique locale du maître d’ouvrage.
  • Visites, coordination et suivi technique des travaux.
  • Pré-livraison, réception et levée des réserves.
Réseau mobilisable · DH · ARC-HÉLIA peut identifier, mobiliser et, selon la mission, piloter les compétences complémentaires adaptées au besoin.
Discuss this need →
AMO professionnel
DH · ARC-HÉLIAAMO professionnel
Your context

AMO professionnel

DH · ARC-HÉLIA complète les équipes d’AMO lorsqu’elles recherchent un renfort technique bâtiment, une expertise transversale ou un relais local sur la Côte d’Azur et à Monaco. L’intervention peut être ponctuelle — audit, analyse de dossier, visite — ou couvrir une phase d’études et de travaux, avec un reporting technique directement exploitable par l’AMO.

  • Relais technique local et participation aux réunions de projet.
  • Audit ou diagnostic technique ciblé.
  • Analyse des risques et points sensibles du bâtiment.
  • Revue des études, plans, rapports et documents disponibles.
  • Analyse des interfaces et cohérence des solutions techniques.
  • Visites de site, constats et reporting photographique.
  • Échanges techniques avec architectes, BET et entreprises.
  • Recherche et mobilisation de spécialistes complémentaires.
  • Appui au suivi technique des travaux et des corrections.
  • Assistance sur les dossiers complexes ou en difficulté.
Réseau mobilisable · DH · ARC-HÉLIA peut identifier, mobiliser et, selon la mission, piloter les compétences complémentaires adaptées au besoin.
Discuss this need →
Hôtelier / groupe hôtelier / exploitant
DH · ARC-HÉLIAHôtelier / groupe hôtelier / exploitant
Your context

Hôtelier / groupe hôtelier / exploitant

DH · ARC-HÉLIA intervient sur les projets hôteliers pour les audits techniques, la rénovation, la conformité du bâtiment et le suivi des travaux. L’appui peut être ponctuel ou renforcer l’équipe projet dans la coordination des architectes, BET, entreprises et interfaces d’exploitation, notamment en site occupé, jusqu’à la réception.

  • Audit technique d’actif hôtelier et due diligence.
  • Analyse des désordres, infiltrations, enveloppe et ouvrages sensibles.
  • Lecture technique des exigences ERP, incendie et accessibilité.
  • Faisabilité d’une rénovation, restructuration ou transformation.
  • Recherche et coordination des architectes, BET et spécialistes.
  • Revue des études et interfaces architecture / technique / exploitation.
  • Analyse des contraintes de phasage et de site occupé.
  • Appui technique sur les interfaces FF&E / OS&E selon dossier.
  • Contrôle ciblé des prototypes, chambres témoins et ouvrages sensibles.
  • Visites et suivi technique des travaux.
  • Pré-réception, réserves et réception.
Réseau mobilisable · DH · ARC-HÉLIA peut identifier, mobiliser et, selon la mission, piloter les compétences complémentaires adaptées au besoin.
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Hotel reference: Traverse des Artistes ↗

Agence immobilière / conseil immobilier
DH · ARC-HÉLIAAgence immobilière / conseil immobilier
Your context

Agence immobilière / conseil immobilier

DH · ARC-HÉLIA réalise des visites et avis techniques indépendants avant une vente ou une acquisition : fissures, infiltrations, humidité, désordres apparents, travaux existants ou état général d’un bien. L’intervention permet de clarifier rapidement un point technique, d’identifier les vérifications utiles et, si nécessaire, de mobiliser un BET ou expert spécialisé.

  • Visite technique avant vente, acquisition ou remise des clés.
  • Diagnostic visuel de fissures, infiltrations, humidité et désordres.
  • Avis sur les éléments structurels et l’enveloppe apparents.
  • Lecture des plans, rapports, diagnostics et études disponibles.
  • Analyse d’un problème technique susceptible de freiner une transaction.
  • Identification des investigations complémentaires nécessaires.
  • Identification indicative des travaux prévisibles.
  • Avis technique indépendant, constats et photographies.
  • Recherche d’un BET, expert ou spécialiste lorsque nécessaire.
  • Accompagnement possible de l’acquéreur après la transaction.
Réseau mobilisable · DH · ARC-HÉLIA peut identifier, mobiliser et, selon la mission, piloter les compétences complémentaires adaptées au besoin.
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Contractant général
DH · ARC-HÉLIAContractant général
Your context

Contractant général

DH · ARC-HÉLIA peut renforcer l’équipe du contractant général depuis la visite du site, les études et le chiffrage jusqu’à la conception technique, la préparation, l’exécution et la réception. L’appui peut couvrir la coordination des architectes et BET, la recherche et l’analyse de sous-traitants, la revue des plans, les interfaces TCE et le suivi technique sur site, ponctuellement ou sur une phase élargie.

  • Visite et analyse technique du site avant engagement.
  • Revue du programme, DCE, plans, études et diagnostics.
  • Identification des risques, inconnues, réserves et investigations nécessaires.
  • Appui technique au chiffrage, variantes et mémoire technique.
  • Conception et coordination technique selon périmètre.
  • Recherche, consultation et coordination des BET et spécialistes.
  • Recherche et analyse technique de sous-traitants et fournisseurs.
  • Revue des études, plans EXE et détails constructifs.
  • Analyse des interfaces TCE, méthodologie et préparation du chantier.
  • Traitement des observations du bureau de contrôle et des non-conformités.
  • Anticipation des surcoûts, reprises, aléas et retards techniques.
  • Visites et suivi technique de l’exécution sur site.
  • Contrôle ciblé de cohérence entre conception et réalisation.
  • Analyse technique des modifications en cours de travaux.
  • Pré-réception, réserves et réception.
Réseau mobilisable · DH · ARC-HÉLIA peut identifier, mobiliser et, selon la mission, piloter les compétences complémentaires adaptées au besoin.
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Entreprise
DH · ARC-HÉLIAEntreprise
Your context

Entreprise

DH · ARC-HÉLIA apporte un appui technique aux entreprises avant ou pendant les travaux : analyse des pièces du marché, revue des plans et solutions constructives, interfaces entre lots, conformité réglementaire et réponses aux observations du bureau de contrôle ou de la maîtrise d’œuvre. Selon le besoin, l’intervention comprend une visite sur site ou la mobilisation d’un spécialiste.

  • Analyse des pièces techniques, CCTP, plans et documents du marché.
  • Revue des études, plans et détails d’exécution.
  • Analyse des interfaces avec les autres corps d’état.
  • Référentiels DTU, normes, ATec, DTA, ATEx, ETN et règles professionnelles.
  • Analyse des observations du bureau de contrôle ou de la maîtrise d’œuvre.
  • Identification des justificatifs techniques manquants.
  • Étude technique d’un point bloquant ou d’une solution constructive.
  • Préparation de réponses techniques argumentées.
  • Visites et constats ciblés sur site.
  • Recherche de BET, fabricants ou spécialistes complémentaires.
  • Assistance ponctuelle en cas de désaccord ou expertise.
Réseau mobilisable · DH · ARC-HÉLIA peut identifier, mobiliser et, selon la mission, piloter les compétences complémentaires adaptées au besoin.
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Prescripteur / partenaire professionnel
DH · ARC-HÉLIAPrescripteur / partenaire professionnel
Your context

Prescripteur / partenaire professionnel

DH · ARC-HÉLIA accompagne les prescripteurs lorsqu’un client recherche un avis technique, un professionnel du bâtiment ou une équipe pour conduire son projet. L’intervention va de la qualification du besoin et de la mise en relation avec le bon spécialiste à la constitution et à la coordination d’une équipe, selon la mission confiée et dans le respect de la relation client du partenaire.

  • Qualification d’un besoin bâtiment ou construction.
  • Analyse préliminaire de la demande et définition des compétences utiles.
  • Orientation vers le type de professionnel adapté.
  • Recherche d’architectes, BET, experts, entreprises et spécialistes.
  • Mise en relation ciblée et mobilisation du réseau.
  • Constitution d’une équipe projet selon besoin.
  • Analyse des propositions techniques reçues.
  • Coordination des intervenants sur une mission définie.
  • Reporting et information du prescripteur selon accord.
Réseau mobilisable · DH · ARC-HÉLIA peut identifier, mobiliser et, selon la mission, piloter les compétences complémentaires adaptées au besoin.
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Designer / agenceur / fournisseur / installateur
DH · ARC-HÉLIADesigner / agenceur / fournisseur / installateur
Your context

Designer / agenceur / fournisseur / installateur

DH · ARC-HÉLIA apporte ponctuellement aux designers, agenceurs, fournisseurs et installateurs un regard technique transversal sur le bâtiment, les plans ou les interfaces avec le chantier. L’intervention peut comprendre un constat ciblé sur site, un échange avec l’architecte, un BET ou une entreprise, et la mise en relation avec des professionnels ou partenaires du réseau en France et à l’international.

  • Analyse technique ponctuelle d’un projet ou d’une difficulté.
  • Lecture des plans et documents techniques disponibles.
  • Analyse des interfaces avec la structure, les supports et les lots techniques.
  • Constats ou vérifications ciblées sur site.
  • Analyse d’un point bloquant avant intervention ou pose.
  • Échanges avec architecte, BET, entreprise et contractant général.
  • Participation ponctuelle à une réunion technique.
  • Mobilisation de compétences complémentaires selon la situation.
  • Mise en relation avec des fournisseurs, agenceurs, installateurs ou spécialistes du réseau européen et international.
Réseau mobilisable · DH · ARC-HÉLIA peut identifier, mobiliser et, selon la mission, piloter les compétences complémentaires adaptées au besoin.
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Does your situation not fit a category?

Describe your need →
01 · Core service

Owner’s Representation · Project Management

Support can begin before the project has been drawn. DH · ARC-HÉLIA acts as the client’s technical contact and representative: clarify needs, build the right team, support and review design, prepare administrative and technical stages, then organise, manage, monitor and check construction through handover, outstanding items and key delivery.

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AMO · Pilotage · Direction de projet
Approach

What the assignment can cover

The scope adapts to the project: initial guidance, team formation, support during a phase or taking over an ongoing project.

The intended outcome

Provide the project owner with cross-disciplinary support: specialists remain responsible for their fields, while DH · ARC-HÉLIA organises their involvement, challenges the consistency of their responses and checks their implementation on site.

Scope & strategyUnderstand the ambition, use, constraints, budget and schedule, and define the appropriate project organisation.
Team search & assemblySelection of architects and specialists appropriate to the project: villa, hotel, public-access building, offices, casino, data centre, heritage or another setting.
Design & studies controlReview of drawings, statements, engineering studies, calculations, interfaces, regulatory requirements and comments from the building technical inspector.
Procurement & decisionsOrganisation of procurement, comparison of bids, technical clarification and support for the project owner’s decisions.
Construction monitoring & execution controlOn-site presence and cross-disciplinary inspections across all trades, from earthworks to finishes, involving specialists where required.
Handover & close-outPre-handover checks, outstanding items, close-out, traceability and support through delivery of a building consistent with the reviewed design.
Standards & reference framework

Useful reference points

Applicable laws, standards and references are determined case by case according to the project type, date, use, location and exact scope.

ProjectProgramme · responsibilities · governance
Project ManagementCost · time · quality · decisions
InterfacesArchitecture · structure · MEP · operations
This presentation describes areas of service and does not replace the project-specific regulatory and contractual review.

A specific issue to review?

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02 · Before buying or committing to works

Technical Audit · Due Diligence · Technical Review

An overall assessment across all trades before works, sale, purchase or auction: understand the visible condition of a property, its risks, documentation and the investigations needed before an important decision.

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Audit · Due diligence · Analyse technique
Approach

A review designed to support decisions

The analysis may cover an apartment, villa, apartment building, hotel, offices, public-access building or another asset. Its scope reflects the stakes and access conditions.

The intended outcome

A prioritised view of visible condition, defects, unknowns, anticipated works, missing documents and specialists required before committing.

Pre-works technical assessmentAssessment of the existing building across all trades before refurbishment, identifying risks and additional studies required.
Pre-acquisition & due diligenceSite visit, document review, technical risks, apparent consistency and issues that may affect acquisition, budget or schedule.
Before sale or handoverIndependent technical advice on an apartment, villa, building or commercial asset to inform and reassure the parties.
Technical opinion before auction purchaseTechnical review of the property within the limits of available information and viewing conditions, identifying the main issues requiring attention.
Document & standards reviewDrawings, studies, reports, available surveys, works history, standards, DTU, technical assessments and context-specific reference documents.
Action planPrioritise investigations, works, supporting evidence and specialists required before deciding or starting works.
Standards & reference framework

Useful reference points

Applicable laws, standards and references are determined case by case according to the project type, date, use, location and exact scope.

Pre-acquisitionResidential · hospitality · commercial property
Before worksExisting buildings · refurbishments · transformations
ImportantMandatory certified surveys remain entrusted to authorised operators.
DH · ARC-HÉLIA provides technical and visual analysis suited to the assignment. Statutory surveys requiring certification are entrusted to authorised operators.

A specific issue to review?

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Framework & scope of support

Technical Assessments · Pre-acquisition · Due Diligence

The exact reference framework must always be confirmed for the project’s nature, date, use, location and defined scope.

Regulatory / technical framework

  • The framework depends on the asset and assignment: French Construction and Housing Code, planning, public-access building safety, accessibility, technical standards, condominium documents and available contractual documents.
  • Statutory surveys reserved for certified operators remain the responsibility of authorised professionals where regulations require them.
  • A DH · ARC-HÉLIA technical audit provides an overall view of the asset and its risks; its scope is contractually defined for each assignment.

How DH · ARC-HÉLIA can help

  • Examine the existing building, available documents, visible defects, previous works and constraints of the proposed project.
  • Identify technical, regulatory and feasibility risks that may affect an acquisition, sale or refurbishment.
  • Prioritise issues: immediate action, investigation, cost assessment or inclusion in the programme.
  • Identify the surveys, investigations, engineering consultants or specialists required before a decision.

General presentation: it does not replace project-specific regulatory and contractual analysis or assignments reserved for regulated or specifically appointed professionals.

03 · When a case gets stuck

Technical Support · Expert Reviews · Complex Situations

A short targeted assignment may sometimes be enough: understand a request, identify the relevant reference framework, prepare a technical response or help a party support its position.

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Appui technique · Expertises · Situations complexes
Approach

Examples of situations

Support may be provided to a project owner, private owner, condominium manager, project manager, architect, owner’s representative, design-and-build contractor, engineering consultant or contractor.

The intended outcome

Reconstruct the facts, understand the relevant rule or technical issue, distinguish what is established from what still needs expert review, then formulate an actionable response. When a specific expertise is required, the right specialist is identified and brought in.

Technical control bodyReview of comments, identification of required justifications and preparation of technical responses.
Technical disagreementReview of a contractor / design team / architect / client dispute and clarification of applicable requirements.
Non-compliant requestReview of a client request or proposed solution against the project and regulatory framework.
Loss & defectDocument review, understanding possible mechanisms and identifying useful investigations.
Amicable or court expert proceedingsTechnical support to a party and its advisers, without replacing legal counsel or the appointed expert.
Concerns about a contractor’s complianceSite visit, document review, visual inspection of accessible building elements and identification of discrepancies or evidence required before proceeding or handing over.
Standards & reference framework

Useful reference points

Applicable laws, standards and references are determined case by case according to the project type, date, use, location and exact scope.

TechnicalDrawings · studies · details · works
RegulatoryBuilding Code · orders · DTU · standards · Eurocodes as applicable
Case fileComments · reports · correspondence · contractual documents
This presentation describes areas of service and does not replace the project-specific regulatory and contractual review.

A specific issue to review?

Contact DH · ARC-HÉLIA →
Expertise · Fire safety

Fire Safety & Public-Access Buildings

Analyse fire safety requirements during design and help draft, complete or review the statements required for planning applications, works authorisations and public-access buildings.

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Sécurité incendie & ERP
Approach

Possible services

Particularly useful for hotels, restaurants, public-access buildings, refurbishments and changes of use.

The intended outcome

A 4- or 5-star hotel rating does not determine the French ERP category. The review starts from the use, occupancy, configuration and actual project.

Fire safety statementsSupport with preparing, drafting or reviewing statements for the project, including planning applications and works authorisations.
Regulatory reviewClassification, occupancy, exits, compartmentation, reaction/fire resistance, smoke control and emergency systems.
Comments & observationsReview of requests from technical control bodies or authorities and preparation of response elements.
Technical interfacesConsistency between architecture, structure, technical systems, operations and fire-safety requirements.
Construction anticipationEarly review of sensitive provisions and details requiring justification.
Standards & reference framework

Useful reference points

Applicable laws, standards and references are determined case by case according to the project type, date, use, location and exact scope.

Public-access buildings (ERP)French fire and panic safety regulations
Core regulationFrench Order of 25 June 1980, as amended, for ERP buildings
HospitalityType O; categories 1 to 4 = first group, depending on occupancy and configuration
This presentation describes areas of service and does not replace the project-specific regulatory and contractual review.

A specific issue to review?

Contact DH · ARC-HÉLIA →
Framework & scope of support

Fire Safety & Public-Access Buildings

The exact reference framework must always be confirmed for the project’s nature, date, use, location and defined scope.

Regulatory / technical framework

  • French Construction and Housing Code: provisions concerning safety in public-access buildings, including Articles R.143-1 onwards.
  • French regulations on fire and panic risks in public-access buildings, approved by the Order of 25 June 1980, with general and specific provisions according to establishment type and category.
  • Classification, occupancy, use, proposed works and new-build or existing-building status determine applicable requirements.

How DH · ARC-HÉLIA can help

  • Identify the classification and regulations actually applicable to the project.
  • Draft, complete or review fire safety statements and translate requirements into design provisions.
  • Identify inconsistencies early: escape routes, separation, smoke control, reaction and resistance to fire, emergency equipment and interfaces between trades.
  • Prepare technical exchanges with architects, engineering consultants, the building technical inspector, contractors and, where required, competent authorities or commissions.

General presentation: it does not replace project-specific regulatory and contractual analysis or assignments reserved for regulated or specifically appointed professionals.

Expertise · Accessibility

Accessibility & use

Consider accessibility early and help draft, complete or review the accessibility statements associated with planning applications, works authorisations and public-access buildings.

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Accessibilité & usages
Approach

Possible services

The review is adapted to the operation: new or existing public-access building, housing, refurbishment, change of use or targeted works.

The intended outcome

Accessibility is considered as a continuous user journey, from arrival on site through access to services.

Accessibility statementsSupport with drafting, updating or reviewing statements and project documents for planning applications, works authorisations and public-access buildings.
Routes & accessParking, access, circulation, gradients, thresholds, doors and manoeuvring spaces.
Facilities & roomsSanitary facilities, accessible rooms, reception desks, stairs, lifts and specific equipment.
Architecture / technical interfacesDetection of inconsistencies between drawings, levels, equipment and user requirements.
DecisionsIdentification of existing-building constraints, points requiring justification and potential exemption requests.
Standards & reference framework

Useful reference points

Applicable laws, standards and references are determined case by case according to the project type, date, use, location and exact scope.

FrameworkFrench Building and Housing Code
Public-access buildings (ERP)Applicable accessibility regulations for new / existing buildings
ProjectExact requirements depend on the building use and project context.
This presentation describes areas of service and does not replace the project-specific regulatory and contractual review.

A specific issue to review?

Contact DH · ARC-HÉLIA →
Framework & scope of support

Accessibility & use

The exact reference framework must always be confirmed for the project’s nature, date, use, location and defined scope.

Regulatory / technical framework

  • French Construction and Housing Code: provisions on accessibility and usability; requirements vary by building use and whether the building is new or existing.
  • For existing public-access buildings, Articles R.164-1 onwards cover routes, entrances, circulation, sanitary facilities, doors, equipment and user information.
  • Adaptations or exemptions may be subject to specific conditions: technical impossibility, disproportionate impact, heritage protection or certain condominium situations.

How DH · ARC-HÉLIA can help

  • Draft, complete or review an accessibility statement and check its consistency with the drawings.
  • Check routes, slopes, level changes, widths, manoeuvring spaces, sanitary facilities, equipment, parking and continuity of access.
  • Identify blocking issues before submission or construction and work with the design team on a technically defensible solution.
  • Check on site that the planned provisions have been properly implemented.

General presentation: it does not replace project-specific regulatory and contractual analysis or assignments reserved for regulated or specifically appointed professionals.

Expertise · Structure

Structure & design consistency

Review structural assumptions, calculations and execution details with a project-wide view: geometry, use, environment, architecture and interfaces.

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Structural review · assumptions · interfaces
Approach

What is reviewed

The aim is not to replace the structural engineer, but to understand their choices, detect inconsistencies and identify the justifications to obtain.

The intended outcome

A consistency review: assumptions must match the actual project and calculated provisions must be translated into buildable drawings.

Design assumptionsLoads, spans, stability, foundations, materials, temporary stages and available ground data.
CalculationsConsistency review of results and alignment between assumptions and project.
Drawings & detailsConsistency between calculations, formwork/reinforcement/structural drawings and execution details.
InterfacesOpenings, penetrations, façades, waterproofing, equipment, finishes and architectural constraints.
Site contextSeismicity, wind, environment, existing structures and location-specific constraints.
Standards & reference framework

Useful reference points

Applicable laws, standards and references are determined case by case according to the project type, date, use, location and exact scope.

Eurocodes 0 / 1Basis of design · actions on structures
Material EurocodesConcrete · steel · timber · masonry as applicable
Eurocode 8Seismic design where applicable
This presentation describes areas of service and does not replace the project-specific regulatory and contractual review.

A specific issue to review?

Contact DH · ARC-HÉLIA →
Framework & scope of support

Structure & design consistency

The exact reference framework must always be confirmed for the project’s nature, date, use, location and defined scope.

Regulatory / technical framework

  • The framework depends on the structural system, project date and contract: Eurocodes and national annexes, execution standards, NF DTU and applicable professional guidelines.
  • Contract documents, drawings, geotechnical assumptions, loads, alterations and interfaces with other trades must remain consistent.
  • This review does not replace structural engineering design where specialist calculations are required.

How DH · ARC-HÉLIA can help

  • Review assumptions, drawings, calculations and details with an overall understanding of the building and its use.
  • Identify inconsistent assumptions, sensitive spans or loads, changes to the existing building or insufficiently addressed interfaces.
  • Request the necessary supporting calculations from the engineering consultant and check that the technical response is reflected in drawings and construction.
  • Involve a structural specialist where recalculation or specific investigation is required.

General presentation: it does not replace project-specific regulatory and contractual analysis or assignments reserved for regulated or specifically appointed professionals.

Expertise · Building performance

Thermal · Acoustics · MEP

Review the consistency of performance studies and technical systems to ensure they match the actual project, its use and objectives.

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Thermique · Acoustique · Fluides
Approach

Key points

These disciplines are highly interdependent: an architectural or structural decision can affect thermal or acoustic performance and building services.

The intended outcome

The aim is not to redo the consultant’s studies, but to understand their assumptions, check consistency with other disciplines and identify points that must be recalculated or justified.

Thermal & energyReview of assumptions, envelope, systems, regulatory targets and consistency with the project.
AcousticsSound insulation requirements, equipment noise and interfaces with façades, partitions, floors and plant rooms.
HVAC & plumbingDistribution principles, plant spaces, maintenance, penetrations and compatibility with architecture.
ElectricalPower requirements, rooms, routes, interfaces with uses and applicable regulations.
Technical coordinationDetection of conflicts between studies before they become costly site changes.
Standards & reference framework

Useful reference points

Applicable laws, standards and references are determined case by case according to the project type, date, use, location and exact scope.

EnergyRE2020 or applicable regulation depending on the project
AcousticsRegulatory requirements and standards depending on use
MEP systemsDTU, product standards, professional rules and operational requirements
This presentation describes areas of service and does not replace the project-specific regulatory and contractual review.

A specific issue to review?

Contact DH · ARC-HÉLIA →
Framework & scope of support

Thermal · Acoustics · MEP

The exact reference framework must always be confirmed for the project’s nature, date, use, location and defined scope.

Regulatory / technical framework

  • Requirements depend on use, submission date and scope of works: applicable environmental and thermal rules, acoustic requirements, ventilation, energy and technical installation standards.
  • For renovation, obligations do not necessarily match new-build requirements: determine the framework for the actual operation.
  • Requirements from studies, statements, specifications, manufacturers and technical documents must remain compatible.

How DH · ARC-HÉLIA can help

  • Review studies against the actual project: architecture, uses, materials, equipment and interfaces.
  • Identify contradictions between thermal or acoustic studies, drawings, windows, linings, services, ventilation and construction.
  • Have sensitive issues clarified or corrected before they lead to remedial works on site.
  • Check during construction that the provisions essential to final performance are implemented.

General presentation: it does not replace project-specific regulatory and contractual analysis or assignments reserved for regulated or specifically appointed professionals.

Expertise · Technical documents

Calculations & execution details

A calculation is only meaningful if its assumptions match the actual project. The review covers both the inputs and the results, and how they are translated into drawings.

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Notes de calcul & détails d’exécution
Approach

Document review

Structure, thermal, acoustics, MEP or a specific justification: the depth of review is adapted to the issue and its significance.

The intended outcome

Avoid discovering during construction that a design assumption, penetration or detail is no longer compatible with the project as it has evolved.

AssumptionsCheck that inputs, uses, loads, geometry and site conditions are correct.
ResultsIdentify critical values, margins, reservations and conclusions that need clarification.
Translation into drawingsCheck that calculated provisions are actually shown and buildable.
Execution detailsAnticipate interfaces, fixings, penetrations, supports, waterproofing and special details.
Questions to the specialistFormulate precise requests for additional information or justification in order to obtain an actionable answer.
Standards & reference framework

Useful reference points

Applicable laws, standards and references are determined case by case according to the project type, date, use, location and exact scope.

StructureStability · load-bearing elements · connections
PerformanceThermal · acoustics · technical systems
ExecutionDrawings · details · technical data · systems
This presentation describes areas of service and does not replace the project-specific regulatory and contractual review.

A specific issue to review?

Contact DH · ARC-HÉLIA →
Framework & scope of support

Calculations & execution details

The exact reference framework must always be confirmed for the project’s nature, date, use, location and defined scope.

Regulatory / technical framework

  • Calculations fall within a technical framework: applicable design standards, Eurocodes where relevant, NF DTU, professional guidelines, Avis Techniques / DTA or requirements of the system concerned.
  • Its practical validity depends first on the relevance of input assumptions and their correspondence with the actual proposed building.
  • Design and calculation responsibilities remain with the competent designers and engineering consultants within their respective scope.

How DH · ARC-HÉLIA can help

  • Compare design assumptions with the actual project and available drawings.
  • Identify missing data, inconsistencies and changes in geometry, loads, supports or conditions of use.
  • Check that results are correctly reflected in drawings, details, openings and construction specifications.
  • Formulate questions and requests for supporting evidence for the engineering consultant or manufacturer.

General presentation: it does not replace project-specific regulatory and contractual analysis or assignments reserved for regulated or specifically appointed professionals.

Expertise · Defects

Defects · Losses · Expert Reviews

When a building develops a defect or a case becomes contentious, the first step is to organise the facts, documents and technical responsibilities before drawing conclusions.

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Pathologies · Sinistres · Expertises
Approach

Approach

The assignment may precede an expert review, support an amicable process or provide technical support to a party during court expert proceedings.

The intended outcome

DH · ARC-HÉLIA provides technical support. It does not replace legal counsel, a court-appointed expert, laboratories or specialists required for specific investigations.

Findings & chronologyIdentify defects, their evolution, works carried out and significant events.
Case documentsDrawings, contracts, correspondence, reports, minutes, statements and execution documents.
Reference frameworkIdentify relevant DTU, standards, professional rules, technical approvals or regulatory provisions.
Technical hypothesesPrioritise possible causes and define the investigations required to confirm them.
Support during expert proceedingsPrepare technical observations and help the client or advisers understand the issues in the case.
Standards & reference framework

Useful reference points

Applicable laws, standards and references are determined case by case according to the project type, date, use, location and exact scope.

Building fabricLeaks · cracks · deformation · workmanship defects
Case fileTechnical · contractual · chronology
Expert proceedingsAmicable · insurance · court proceedings, supporting a party
This presentation describes areas of service and does not replace the project-specific regulatory and contractual review.

A specific issue to review?

Contact DH · ARC-HÉLIA →
Framework & scope of support

Building Defects · Damage · Technical Assistance to a Party

The exact reference framework must always be confirmed for the project’s nature, date, use, location and defined scope.

Regulatory / technical framework

  • The case is assessed against both the technical rules applicable to the building and the project’s contractual framework.
  • Depending on the case, construction liabilities and warranties may fall under Articles 1792 onwards of the French Civil Code; their legal application is the responsibility of legal and insurance professionals.
  • An expert assessment may be private, insurance-related or judicial. DH · ARC-HÉLIA provides technical assistance to a party and does not act as a court-appointed expert unless appointed by a court.

How DH · ARC-HÉLIA can help

  • Provide technical assistance to the project owner, property owner, condominium manager, contractor, project manager or another party wishing to support its case technically.
  • Reconstruct the facts, chronology, works, contractual documents and construction records.
  • Identify relevant technical standards, assess defects and prioritise possible causes.
  • Prepare technical observations, meetings and arguments, and involve a laboratory, engineering consultant or specialist where further investigations are needed.

General presentation: it does not replace project-specific regulatory and contractual analysis or assignments reserved for regulated or specifically appointed professionals.

Technical Due Diligence

Assess the technical risks of an asset before committing.

The scope is defined according to your objective, available documents and access to the property.

Document reviewReview available drawings, studies, reports, surveys and technical documents.
Asset conditionCompare the documentation with the visible condition of the building and available access.
Risks and sensitive issuesIdentify risks relating to structure, envelope, equipment, fire safety and accessibility as relevant to the asset.
Anticipated worksPrioritise anticipated works, further investigations and items requiring cost assessment.
Acquisition decisionPresent a summary of findings, risks, unknowns and useful actions to inform the acquisition decision.

A specific issue to review?

Discuss this need →

Assessment Before Buying at Auction

Assess a property’s technical viability to inform your bid.

The scope is defined according to your objective, available documents and access to the property.

Documents and viewingReview the available documents and accessible building elements within the permitted viewing time and conditions.
Visible condition and unknownsIdentify visible defects, missing information and issues that cannot be checked before the sale.
Intended projectReview the property’s apparent technical suitability for your goal: retaining, renovating, converting or reselling after works.
Works and uncertaintiesIdentify key works, required studies and uncertainties to consider in your budget assessment.
Informed bidProvide a technical summary to help develop a bid reflecting the property’s condition, anticipated works and identified risks.

A specific issue to review?

Discuss this need →

Technical Feasibility Before Works

Check possibilities and constraints before starting your project.

The scope is defined according to your objective, available documents and access to the property.

Existing building and objectiveUnderstand the existing building and proposed programme: extension, renovation, restructuring or change of use.
Technical constraintsIdentify sensitive issues relating to structure, envelope, services and interfaces between trades.
Project requirementsIdentify fire safety, accessibility, performance and use-related issues requiring further review with the relevant professionals.
Options and studiesCompare possible approaches and define the surveys, investigations or studies needed before selecting a solution.
Team and next stepIdentify the architects, engineering consultants and specialists required, and prepare a coherent next stage for the project.

A specific issue to review?

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