a+u 2026:04 Feature: BAST
Content
a+u’s April issue features BAST (Bureau Architectures Sans Titre), based in Toulouse, France. Laurent Didier, Mathieu Le Ny, and Louis Léger have structured a worker-owned cooperative to pursue a research-based approach to architecture. Instead of asserting a singular vision across the board, they inform each project with site-specific decisions and structural logic. Engaging with modest programs, including the refurbishment projects M47 and E53, BAST carves out new spaces while preserving the integrity of the local vernacular building. New constructions, such as M37, present new methods to connect with the site. The 18 projects presented in this issue focus not only on the finished building, but also on the dynamism of the construction site, where constant calibrations take place between human, site, and material.
M48 Maison / House
M44 Maison / House
M32 Maison / House
E69 Équipement / Public Space
Essay:
Building Practice
Adrien Comte and Adrien Meuwly
A12 Appartement / Apartment
A13 Appartement / Apartment
E53 Équipement / Public Space
E56 Équipement / Public Space
L33 Logement / Collective Housing
L35 Logement / Collective Housing
Conversation:
BAST and Guillermo Fernández-Abascal
M37 Maison / House
M38 Maison / House
M39 Maison / House
M43 Maison / House
M45 Maison / House
M47 Maison / House
Workshop:
O04 / W04 – Teaching Experiences
T18 Tertiaire / Tertiary Space
T19 Tertiaire / Tertiary Space
Announcement: The 61st Central Glass International Architectural
Design Competition (2026)