Record checked on 26 October 2026.
A3 Argouarch Architectes Associés
Architecture firm in Brest · founded in 2005
Formerly PHAR
Overview
A3 Argouarch Architectes Associés is a Brest practice set up in 2005 by architect Pierre-Henri Argouarch, who had practised since 1989, including fifteen years as a partner in a Brest architects' collective. Its team of about a dozen designs housing, offices, schools and hotels, mostly in Brest and western Brittany, and also runs a gallery and interior design studio by the port. In 2025 its school extension in Lannion won the Prix Architecture et espaces Bretagne.
- Founded
- 2005
- Team
- ≈ 12
- Projects
- 7
- Awards
- 1
Agency created in Brest in 2005; Pierre-Henri Argouarch had practised since 1989, from 1990 to 2005 as a partner in a Brest architects' collective.
Partners and founders
Pierre-Henri ArgouarchFounder and manager / Architect
Fields of work
Housing · Office buildings · Schools · Hotels and student residences · Interior architecture
Built work
Saint-Joseph Bossuet school extension (classrooms and library)
Lannion · School extensionLe Surcouf aparthotel
Brest · Aparthotel and officesH2O office building
Brest · OfficesBoileau student residence
Brest · Student housingPanorama housing
Brest · HousingLogonna-Daoulas town hall (conversion of the Maison des Filles du Saint-Esprit)
Logonna-Daoulas · Town hall in a converted buildingPrizes and awards
- 2025Prix Architecture et espaces Bretagne (PAeB), laureate, Learning category (Saint-Joseph Bossuet school extension, Lannion)
Frequently asked questions
Where is A3 Argouarch Architectes Associés based?
The firm's address is 72 rue Amiral Troude, 29200 Brest.
When was A3 Argouarch Architectes Associés founded?
It was founded in 2005.
How can I contact A3 Argouarch Architectes Associés?
You can reach the firm by phone on +33 2 98 33 25 25, by email at pharchitecture@phar.fr and through its website a3archi.com.
What are the main projects of A3 Argouarch Architectes Associés?
Its built work includes Guyot Environnement headquarters (Brest, 2025), Saint-Joseph Bossuet school extension (classrooms and library) (Lannion, 2024) and Le Surcouf aparthotel (Brest, 2023).