DDA - DEVAUX & DEVAUX ARCHITECTES

What DDA - DEVAUX & DEVAUX ARCHITECTES does

DDA (Devaux & Devaux architectes) is a French architecture firm founded in Paris in 1998 by David Devaux and joined in 2005 by partner Claudia Devaux. Registered as a SARL d'architecture with €33,500 of capital, the practice operates from a single office in the 11th arrondissement of Paris with an 8-person team that combines heritage conservation specialists, HMONP architects, a historian, a space designer and a construction manager.

The firm specialises in heritage restoration, architectural transformation and new construction, with a particular focus on 20th-century architectural heritage, French Monuments Historiques and UNESCO World Heritage sites. Its technical practice is built around three guiding principles (authenticity, reversibility, adaptation to contemporary use) and includes distinctive methodologies such as impressed-current cathodic protection for coastal concrete heritage (deployed at Villa E-1027) and multi-disciplinary restitution combining archaeology, archival research and expert collaboration. Notable projects include the Villa E-1027 and Le Corbusier site in Roquebrune-Cap-Martin, the Salève cable car (Équerre d'Argent 2024), Mont-Saint-Michel, Arc de Triomphe, Carcassonne, Villa Cavrois, Château de Champs-sur-Marne, Villa Arson, the Cité du Cinéma d'Animation in Annecy and the Le Corbusier barge Louise-Catherine in Japan.

DDA's business model is project-based professional services revenue generated through French public procurement, architectural competitions and direct commissions from institutional clients. Its client base is concentrated in public-sector and cultural-heritage buyers, led by the Centre des Monuments Nationaux (a multi-monument visitor-reception programme covering ~30 historic sites) and including Conservatoire du Littoral, City of Annecy, ASJEM, Villa Arson EPA and the cross-border GLCT TS. The firm supplements fee-earning work with academic and research activity via the ADHER laboratory at EPFL, and pursues growth into adjacent verticals such as transport infrastructure (TEOL Lyon partnership with OMA) and international heritage commissions.

Name

DDA - DEVAUX & DEVAUX ARCHITECTES

Legal name

Devaux & Devaux architectes

Website

https://dda-architectes.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

1–10 employees

Short description

DDA is a Paris-based French architecture firm specialising in heritage restoration and transformation of 20th-century Monuments Historiques and UNESCO World Heritage sites. Founded in 1998 and led by the Devaux partners, the 8-person practice serves French public institutions and cultural heritage organisations.

Ownership category

akta.pro rank

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Revenue model

1. Architectural Services - Public Heritage Projects: The firm generates revenue through architectural services for heritage restoration, monument rehabilitation, and public space projects. Revenue is project-based, sourced from public procurement, architectural competitions, and direct commissions from institutional clients including Centre des Monuments Nationaux, municipal governments, and cultural institutions.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

DDA is a French architecture firm providing architectural design, heritage restoration, and building transformation services. The firm specialises in the rehabilitation of historic monuments, 20th-century architectural heritage, and adaptive reuse projects for public institutions, government bodies, and cultural organisations. The firm also provides programming, master planning, and public space design services, operating through direct commissions, public procurement, and architectural competitions.

Product overview

DDA (Devaux & Devaux Architectes) is a French architecture firm (SARL d'architecture au capital de 33 500€) founded by David Devaux in 1998 and later joined by Claudia Devaux. The firm specializes in heritage restoration, transformation, and new construction projects. Their work focuses on the rehabilitation of existing buildings, particularly 20th-century heritage and historic monuments. The firm operates as a traditional architecture practice rather than a product-based company—there are no named software products, platforms, or modules. Services include architectural design, heritage restoration, public space design, and cultural facility planning.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Équerre d'Argent 2024 award for rehabilitation of Salève cable car upper station
• +2 more outcomes

Named customers8 records

Segments4 records

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Twelve partnerships are on record, tiered minor, core and flagship.

• Designers UnitminorOthersDesign partner responsible for visual identity and design work for the agency, located at 28 rue Francois Arago, 93100 Montreuil
• Sylvain JuléminorOthersWeb development partner responsible for agency website development and technical maintenance
• AHA (Annabelle Hagmann)minorImplementation/ SI/ Consulting PartnerProject direction services for agency projects, providing editorial and coordination support
• WSP/BG Ingénieurs Conseils SAScoreTechnology or IntegrationLead engineering firm in Tramway Express de l'Ouest Lyonnais (TEOL) competition team, responsible for structural and civil engineering as mandatories
• OMA (Office for Metropolitan Architecture)flagshipStrategic or Co-development PartnerInternational architecture firm led by Rem Koolhaas, collaborated as co-architects in TEOL competition winning team for Lyon bridge crossing project
• Marco Rossi PaysagistescoreTechnology or IntegrationLandscape architecture firm part of TEOL competition team, responsible for landscape integration and urban design aspects
• EPFL (École Polytechnique Fédérale de Lausanne)flagshipStrategic or Co-development PartnerClaudia Devaux appointed Professor of Practice at EPFL within ENAC faculty, leading ADHER laboratory on architectural design and heritage research
• Getty Conservation InstituteflagshipStrategic or Co-development PartnerClaudia Devaux delivered conference on Conserving Modern Architecture for Getty Conservation Institute's virtual event on Conserving Concrete
• ICOMOS FranceflagshipStrategic or Co-development PartnerInternational Council on Monuments and Sites collaboration, with Claudia Devaux lecturing on Jaoul Houses woodwork restoration at ICOMOS France symposium
• ADAN (Architectural Design Association of Nippon)flagshipStrategic or Co-development PartnerJapanese association as owner of Louise-Catherine barge project, commissioning dd.a for restoration of Le Corbusier's floating heritage vessel
• Fassio-ViaudcoreStrategic or Co-development PartnerAssociate architect firm collaborating on multiple projects including multimedia library in Île-Saint-Denis and Paul Bailliart Cultural Centre
• Louis ChouletcoreTechnology or IntegrationFluid engineering specialist working across numerous agency projects including Salève cable car, Mont-Saint-Michel, and Paul Bailliart Centre

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Architecture-Studio: Major French architecture firm with a much larger international portfolio including cultural, heritage, and public projects. A broader incumbent that competes for many of the same institutional commissions as DDA.
• Renzo Piano Building Workshop: Globally renowned practice with a strong heritage and museum portfolio (e.g., Centre Pompidou, Beyeler Foundation extensions). Competes at the top end of the same cultural-architecture segment.
• Wilmotte & Associés: Large French architecture practice with extensive heritage and cultural portfolio (e.g., Musée d'Orsay renovation, Fondation Carmignac). Operates at greater scale across heritage, museum, and commercial sectors.
• Atelier Christian de Portzamparc: Established French architecture practice with cultural, institutional, and heritage projects. A broader incumbent competing for similar public-sector cultural commissions.
• Dominique Perrault Architecture: Major French architecture practice with cultural and institutional portfolio including heritage-adjacent work. Comparable in design prestige but with a much larger international footprint.

Emerging players

• AAVP Architecture: Paris-based architecture firm led by Vincent Parreira with a portfolio of social housing, cultural, and rehabilitation projects in France. Comparable in mid-scale French practice profile with rehabilitation and cultural-project work.

Direct peers

• Studio Milou: French heritage architecture firm led by Jean-François Milou, with comparable practice in adaptive reuse and historic monument restoration (e.g., Fondation Louis Vuitton). Operates in the same Monuments Historiques accreditation framework and serves similar public cultural institutions.
• David Chipperfield Architects: Internationally recognized practice with deep heritage restoration credentials, including the Neues Museum in Berlin and major European museum projects. Most directly comparable at the high-end of museum/heritage architecture.
• Chatillon Architectes: French architecture firm specializing in heritage and contemporary projects, working on Monuments Historiques and cultural institutions in a similar service profile and client base to DDA.
• Béchu & Associés: French architecture firm with active practice in heritage and adaptive reuse, working on cultural and institutional projects. Comparable niche focus on existing-building transformation in the French market.

Market position

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/dda---devaux-&-devaux-architectes

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

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M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

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