What AAPP / Atelier d'architecture Philippe Prost does

AAPP / Atelier d'Architecture Philippe Prost is a privately held Paris-based architecture practice founded in 1993 by Philippe Prost, operating with a team of approximately 30 architects, project directors, heritage specialists and support staff from its headquarters at 11 rue d'Uzès in the 2nd arrondissement. The firm is structured around four associates (Philippe Prost, Catherine Seyler, Gaël Lesterlin and Lucas Monsaingeon) and specializes in the transformation of existing built heritage under the stated principle 'pas de création sans mémoire' (no creation without memory), spanning building-scale restoration, urban redevelopment, memorial architecture and scenography.

The practice's portfolio includes the Anneau de la Mémoire at Notre-Dame-de-Lorette (a 325-meter reinforced concrete ellipse carrying 579,606 names of WWI fallen, inaugurated 2014), the Monnaie de Paris rehabilitation (Metalmorphoses, 2009–2017), the Cité des Électriciens UNESCO Mining Basin rehabilitation (2014–2019), the Château de Caen restoration (2020–2025), the Port Vauban / Port Gallice redevelopment in Antibes (~€15M HT), and the recently won Place de la Concorde redevelopment (2025, with Bruel Delmar) and Mémorial national des victimes de l'esclavage at Trocadéro (2025, with Michel Desvigne Paysagistes). Underlying technical differentiation rests on a deep historical-analysis methodology, École de Chaillot-trained heritage architects, doctoral research integration (Lucas Monsaingeon's doctorate on territorial transition of the Nord-Pas-de-Calais mining basin), and pedagogical activity at ENSA Paris-Belleville.

Revenue is generated exclusively through professional services fees from French public institutions and government bodies, acquired through competitive public tenders and direct institutional commissions. The firm's client roster includes the Ministère de la Culture, Ville de Paris, Ville de Saint-Malo, Ville d'Antibes, Château de Caen, CCI Nice Côte d'Azur, Fondation Le Corbusier and the Cité de l'architecture et du patrimoine; pricing is not publicly disclosed. The practice was awarded France's highest architectural distinction, the Grand Prix National de l'Architecture 2022, alongside a broad portfolio of French and international awards (RIBA International Award 2016, Dedalo Minosse International Prize 2017, Prix Mies Van der Rohe nomination 2014).

Name

AAPP / Atelier d'architecture Philippe Prost

Legal name

Atelier d'Architecture Philippe Prost

Website

https://prost-architectes.com

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

1–10 employees

Short description

AAPP is a Paris-based heritage and transformation architecture practice (est. 1993, ~30 staff) serving French public institutions and municipalities through competitive tenders, with marquee projects including the Anneau de la Mémoire and Place de la Concorde redevelopment.

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

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Architectural and Urban Design Services: Fees for architectural design, urban planning, heritage restoration, and landscape architecture services for public and institutional clients. Revenue generated through public procurement contracts, competition prizes, and direct commissions from government bodies and cultural institutions.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

AAPP is a French architecture practice that provides full-service architectural design, heritage restoration, urban planning, and memorial architecture services for public institutions and government clients. The firm's practice is centered on transforming and reusing existing built heritage rather than demolishing it, integrating contemporary architectural interventions within historic structures across all scales from territory planning to scenography. Core deliverables include architectural design, project management, feasibility studies, perspectivist rendering, and academic research on heritage and memory architecture.

Product overview

AAPP is an architecture firm offering a comprehensive portfolio of architectural services centered on heritage preservation, architectural transformation, and memorial design. The firm's core offerings span architecture services, heritage restoration, urban planning, and memory architecture, complemented by publications and academic teaching activities. Philippe Prost's practice is distinguished by its philosophy of working with existing structures—transforming and updating heritage buildings rather than replacing them—while creating contemporary memorials and public spaces that engage with collective memory. Notable projects include the restoration of the Château de Caen, the Anneau de la Mémoire at Notre-Dame-de-Lorette, rehabilitation of the Monnaie de Paris, and the Cité des Électriciens. The firm's work ranges from building-scale interventions to large urban projects including the redevelopment of Place de la Concorde in Paris.

Differentiator

Problem solved

Functional benefit

Products and services

• Architecture Services Full-service architectural design and project management for heritage buildings, monuments, and contemporary interventions in existing structures, serving public institutions and government clients.
• Heritage Preservation and Restoration Specialized conservation and restoration of historic monuments, including listed buildings and UNESCO World Heritage sites, using contemporary techniques while respecting original materials and craftsmanship.
• Urban Planning and Development Urban design and planning services focusing on heritage-sensitive development, including public spaces, ports, and territorial transformation projects, for municipalities and regional governments.
• Memorial and Memory Architecture Design of commemorative spaces and memorials, including the Anneau de la Mémoire (Memory Ring) at Notre-Dame-de-Lorette and the National Memorial for Victims of Slavery at Trocadéro, for national and regional authorities.

Quantifiable outcome

• 579,606 names inscribed on the Anneau de la Mémoire memorial at Notre-Dame-de-Lorette
• +2 more outcomes

Named customers10 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• Michel Desvigne PaysagistescoreStrategic or Co-development Partner · 23 May 2025Joint team selected as laureate for the Mémorial national des victimes de l'esclavage project at the Trocadéro gardens in Paris. Michel Desvigne (renowned landscape architect) leads landscape design while AAPP leads architectural design.
• Bruel DelmarcoreStrategic or Co-development Partner · 27 March 2025Joint team with Bruel Delmar (landscape architect Anne-Sylvie Bruel) won the competition for Place de la Concorde redevelopment in Paris. Philippe Prost leads architectural aspects while Bruel Delmar leads landscape architecture.
• David Lebreton / Designers UnitminorStrategic or Co-development Partner · 11 December 2024Collaborating with David Lebreton of Designers Unit for the L'Hydro maritime museum project in Saint-Malo.
• Académie d'ArchitectureminorOthers · 1 January 2022Philippe Prost has been a member of the Académie d'Architecture since 2014. Catherine Seyler also serves as a member. The academy coordinates the Prix du livre d'architecture, co-coordinated by Catherine Seyler.
• École Nationale Supérieure d'Architecture de Paris-Belleville (ENSA Paris-Belleville)coreOthersPhilippe Prost is a professor at ENSA Paris-Belleville since 2008. The school serves as both a talent pipeline and research collaborator. Lucas Monsaingeon is pursuing a doctorate within the university's research environment.
• Cité de l'Architecture et du PatrimoinecoreStrategic or Co-development PartnerPhilippe Prost serves on the council of orientation of the Cité de l'architecture et du patrimoine. The institution hosted the major 'La Mémoire Vive' retrospective exhibition of the firm's work (Oct 2024–Mar 2025) and co-published the guide 'Faire tiers-lieux dans un édifice patrimonial' with France Tiers-Lieux.
• Fondation Le CorbusiercoreStrategic or Co-development PartnerPhilippe Prost has been President of the Fondation Le Corbusier since 2024. The foundation oversees the preservation and promotion of Le Corbusier's architectural legacy.
• France Tiers LieuxminorStrategic or Co-development PartnerCo-authored the guide 'Faire tiers-lieux dans un édifice patrimonial' published by France Tiers-Lieux and the Cité de l'architecture et du patrimoine (July 2025).
• CCI Nice Côte d'AzurcoreChannel Partner/ Reseller/ DistributorThe Chamber of Commerce and Industry manages Port Vauban and Port Gallice in Antibes under a 26-year public service delegation. AAPP was commissioned for the comprehensive redesign of both ports, working as the lead architecture firm under a long-term public mandate from the CCI.
• Université Tsinghua / Université de Tianjin / Institut françaisminorStrategic or Co-development PartnerCollaborated on the bilingual exhibition 'Symbiosis of New and Old - Architectural mutations and urban regeneration in France and China' (2025) celebrating 60 years of France-China diplomatic relations, presented at Taoxichuan Ceramic Art Avenue in Jingdezhen, China.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• David Chipperfield Architects: UK-based architecture firm internationally renowned for heritage restoration work (e.g., Neues Museum Berlin) and cultural institutions. Closely comparable on heritage specialization and museum-quality cultural commissions, and a reference point for the international recognition AAPP seeks.
• Architecture-Studio: Major French architecture firm with strong heritage, cultural, and institutional portfolio including museums and public buildings across France and internationally. Comparable on French base, scale, and mix of public clients, and a regular co-competitor in elite tenders.
• Dominique Perrault Architecture: Major French architecture firm of comparable scale and international recognition, with portfolio spanning institutional, cultural, and urban projects. Comparable on size, French base, and high-prestige public-sector work, and competes against AAPP in the same competition ecosystem.
• Lacaton & Vassal: French architecture firm (Pritzker Prize 2021) renowned for rehabilitation and transformation of existing structures with minimal intervention. Shares AAPP's core ethos of working with existing fabric rather than demolishing, and operates as a similarly sized Paris-based practice with comparable French public-sector engagement.
• Jean-Michel Wilmotte & Associés: Paris-based architecture firm of comparable size and prestige, specializing in heritage restoration, museum architecture, and cultural institutions for French public clients. Closely comparable to AAPP on heritage specialization, French public-sector client base, and competition-driven acquisition.
• Atelier Christian de Portzamparc: Major French architecture firm (Pritzker Prize 1994) with comparable mix of cultural, institutional, and urban projects at similar scale. Operates in the same French public-sector competition ecosystem and shares AAPP's international-award positioning.

Broad incumbents

• Renzo Piano Building Workshop: Major global architecture firm known for museums, cultural centres, and heritage-sensitive contemporary design (Centre Pompidou, Whitney Museum). Comparable on cultural/heritage architecture focus but at substantially larger scale.
• Herzog & de Meuron: Major Swiss-based global architecture firm with significant heritage and museum portfolio (e.g., Tate Modern, Schaulager, Elbphilharmonie). Comparable on heritage-sensitive cultural architecture but at substantially larger scale and broader portfolio.
• Kengo Kuma & Associates: Major Japanese architecture firm with comparable heritage/transformation ethos and cultural architecture portfolio emphasizing material craft and context. Different geography but similar philosophy of context-sensitive design and craft-based heritage work.
• Snøhetta: Major international architecture firm with strong cultural and public architecture portfolio (e.g., Norwegian National Opera). Comparable on heritage-adjacent cultural commissions but operates at substantially larger scale and broader portfolio across geographies.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Instagraminstagram.com/philippe_prost_architecture
• LinkedInlinkedin.com/company/aapp-atelier-d-architecture-philippe-prost

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about AAPP / Atelier d'architecture Philippe Prost