Letellier Architects

What Letellier Architects does

Letellier Architectes is a privately held, family-owned French architecture firm founded in 1998 by Axel Letellier in Toulouse. The firm provides multi-disciplinary architectural services spanning heritage restoration (Patrimoine), individual and collective residential housing, cultural and educational facilities, healthcare and senior living buildings, tertiary/office projects, urban planning, and interior design. It operates through three French legal entities (EURL Letellier Architectes, SARL Ideal Concept, and SARL LGA – Letellier Architectes) with offices in Toulouse (headquarters, 12 rue des Vases), Paris (71 rue du Fbg St-Antoine), and Penne (Tarn-et-Garonne), serving both public-sector clients (municipalities, ministries, healthcare institutions) and private developers (Bouygues Immobilier, Groupe des Chalets, ICADE, Kaufman & Broad, UNIQLO France) across more than 20 French departments.

The firm's technical core combines traditional heritage conservation expertise — including restoration of classified monuments such as Château Royal de Collioure, Basilique Notre-Dame de la Daurade, the Musée des Augustins, and Pont-Vieux de Montauban — with modern methodology, notably the systematic application of BIM to heritage and worship buildings. Axel Letellier holds both the Architecte d.p.l.g. diploma and the Architecte du Patrimoine credential (trained at the Centre des Hautes Etudes de Chaillot), and the practice incorporates sustainable construction certifications (HQE, BREEAM, NF HQE) into its projects. It is consistently ranked among France's top 100 architecture firms by d'architectures magazine (100th in 2021, 113th in 2020, 151st in 2019) and has won multiple industry awards including two Pyramides d'Argent in 2021, the Trophées de la Construction Grand Prix du Jury in 2020, the BIM d'Or Jury's Choice in 2022, and the Prix régional des Rubans du Patrimoine in 2020.

Revenue is generated through professional services: design and project-management fees negotiated per project as a percentage of construction cost or as fixed mission fees, depending on scope and client type. Project values range from €149,000 for small residential rehabilitation to over €16 million for large new-build commissions, with revenue inherently project-cyclical and tied to public-sector tender cycles. The firm has a staff of 11-50 and pursues growth through geographic expansion (Paris entry in 2019), continued heritage mandate wins, and deepening presence in healthcare and senior-living verticals.

Name

Letellier Architects

Legal name

EURL LETELLIER ARCHITECTES

Website

https://letellier-architectes.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

11–50 employees

Short description

Letellier Architectes is a privately held French architecture firm founded in 1998 by Axel Letellier, operating from Toulouse, Paris, and Penne, and delivering heritage restoration, residential, healthcare, cultural, and tertiary architecture for public-sector clients and private developers across France.

Ownership category

akta.pro rank

Headquarters

HQ city

Toulouse

HQ country

France

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Architectural Design & Engineering Services: The firm generates revenue through professional architecture and engineering design services for construction, renovation, and heritage projects. Fees are typically structured as a percentage of construction cost or as fixed design fees for specific mission scopes. Services include feasibility studies, schematic design, detailed design, and construction oversight. Revenue is project-based and cyclical with project award cycles.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Letellier Architects is a French architecture firm that provides comprehensive architectural design, restoration, and construction management services. Its core work spans heritage restoration of classified historic monuments, residential architecture (individual and collective housing), cultural and educational facilities, healthcare buildings, tertiary/office buildings, urban planning, and interior design. The firm operates across three offices in Toulouse, Paris, and Penne, serving both public sector clients (municipalities, ministries) and private developers throughout France.

Product overview

Letellier Architects is a multi-disciplinary French architecture firm offering a comprehensive portfolio of architectural services organized around several core offerings: heritage restoration (Patrimoine), residential architecture (individual and collective housing, senior and student residences), cultural and educational facilities, healthcare buildings, tertiary/office buildings, urban planning, and interior design. The firm operates across three offices in Toulouse, Paris, and Penne (Tarn-et-Garonne), serving both public and private clients throughout France. The firm is known for its expertise in heritage conservation and has received multiple awards for its work in heritage restoration and sustainable construction.

Differentiator

Problem solved

Functional benefit

Products and services

• Architectural Design Services

Quantifiable outcome

• More than 21,000 bricks restored and 12 km of joints hand-repointed during Musée des Augustins restoration
• +3 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Bouygues ImmobiliercoreStrategic or Co-development PartnerLong-standing collaboration with Bouygues Immobilier on multiple residential and mixed-use projects. Key projects include Côté Garonne (68-unit residential development along Garonne in Toulouse) and Campus Saint-Michel (208-unit student residence, awarded Pyramide d'Argent 2021 for urban mixity). The firm serves as architect on these developer-led projects.
• Groupe des ChaletscoreStrategic or Co-development PartnerOngoing partnership with this social housing provider on multiple projects including the award-winning L'Annexe student residence (153 units, won Trophées de la Construction), Reflets de Brienne (42 units), and various rehabilitation projects. The collaboration emphasizes eco-responsible design and sustainable housing.
• ICADEcoreStrategic or Co-development PartnerPartnership with this property developer on senior living and mixed-use projects including the EHPAD Notre-Dame de la Compassion (copper-clad extension in Toulouse historic center) and the Palais de Via project in Cahors (renovation of listed palace + new co-living and housing).
• Kaufman & BroadminorStrategic or Co-development PartnerCollaborated on the Résidences Inside project (203 housing units in L'Union) developed with Promologis, achieving NF Habitat certification.
• Toulouse MétropolecoreStrategic or Co-development PartnerPublic sector partner commissioning significant urban projects including the rehabilitation of Ateliers Moteurs (ZAC Montaudran) and participation in the ZAC de la Cartoucherie project. These public-private collaborations shape urban development in the Toulouse metropolitan area.
• Math IngénierieminorImplementation/ SI/ Consulting PartnerRegular engineering partner providing structural, thermal, and fluid engineering services on multiple projects including Tour des Mazades, EHPAD Notre-Dame de la Compassion, and Résidences Inside.

Scale indicators3 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Wilmotte & Associés: Paris-based architecture firm combining heritage/contemporary work and interior architecture across cultural, residential, and commercial projects. Comparable in combining heritage restoration with modern commissions and serving blue-chip French clients.
• Patriarche: French architecture and engineering group operating across heritage restoration, residential, healthcare, and tertiary buildings. Directly comparable service breadth and French market focus with similar heritage-and-contemporary portfolio.
• Architecture-Studio: Major French architecture firm with comparable multi-sector portfolio spanning cultural, educational, residential, and urban projects. Comparable scope but larger scale; useful for benchmarking top-tier French practice growth.
• Atelier Barani: French architecture practice with heritage, residential, and public building expertise across France. Similar size and typology breadth to Letellier, with comparable public/private developer client mix.
• TANK Architectes: French architecture firm specializing in heritage, residential, and cultural projects with BIM and sustainable design. Highly comparable in heritage focus and contemporary/renovation mix.
• LCR Architectes: Mid-sized French architecture firm with comparable portfolio across residential, healthcare, cultural, and heritage projects. Similar scale and French regional/national positioning.

Broad incumbents

• Chaix & Morel et Associés: Established French architecture practice with broader portfolio across public buildings, cultural venues, and housing. Larger and more diversified than Letellier, but overlapping in client segments and public sector work.
• Kardham Archi & Ingénierie: Larger French architecture and engineering group serving commercial, residential, and public sector clients with integrated design-build services. Useful benchmark for what scaled French architecture practices look like; broader service offering including interior design.
• Valode & Pistre: Major French architecture firm with large-scale cultural, commercial, and public building portfolio. Comparable in cultural and public sector work, with significantly larger project scale and international reach.

Others

• Ingérop: French engineering and architectural consultancy group active in building, infrastructure, and heritage projects. Comparable in heritage-related engineering work and serves as an engineering partner ecosystem for architecture firms like Letellier.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/axel-letellier-architecture

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

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

Frequently asked questions about Letellier Architects