In a private residential development on the Contis coast in southwest France, stands House M37, designed by BAST in collaboration with LITTORAL. Selected as one of the 40 finalists for the 2026 EUmies/Mies van der Rohe Awards, the project is conceived as a retreat nestled within the unique landscape of the Landes forest.

Designed for a retired couple, the house is a compact, single-story structure that preserves the charm of its natural surroundings, subtly integrated into the vegetation to avoid deforestation.

At the heart of the project undertaken by BAST and LITTORAL, an exterior courtyard articulates and separates the functional program of the house: on one side, the rooms commonly used year-round; on the other, a spacious and flexible annex provides the necessary area for entertaining friends and family.

For its construction, Casa M37 employs a framework of wooden posts and beams supported by a polished concrete slab. A series of frames in the flat roof ensures the even entry of natural light and proper ventilation in each living space. Preserving the original state of the undergrowth, the project presents itself as a flexible domestic retreat that values ​​and takes advantage of the natural beauty of its site.

M37 house in Contis by Bast + Littoral. Photograph by Bast.

M37 house in Contis by BAST + LITTORAL. Photograph by BAST.

Project description by BAST + LITTORAL

This house is for a retired couple.

They are settling in a private development on the Atlantic coast. The building's location avoids deforestation in the Landes forest. The land is preserved in its original undergrowth.

The compact design creates its own outdoor space within the built area. This courtyard separates the main house, inhabited year-round, from a guest house for family and friends. Two sliding doors of reinforced glass provide privacy.

M37 house in Contis by Bast + Littoral. Photograph by Bast.
M37 house in Contis by BAST + LITTORAL. Photograph by BAST.

The house is built with a timber frame and posts and beams on a polished concrete slab. The roof is a membrane that meets the development's flat roof requirement. The anodized aluminum window frames open only onto the courtyard.

Sunlight allows natural light and ventilation to enter every section of the house. This house stands apart from the development's surroundings to reconnect with the original forest.

More information

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Architects
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BAST. Lead Architect.- Mathieu Le Ny.
LITTORAL. Lead Architect.- Benjamin Coustes.

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Collaborators
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Structure.- Mathieu Bordes.

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Client
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Pasquet.

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Area
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Site area.- 1506 sqm
Total gross floor.- 150 sqm.

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Dates
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November 2024.

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Location
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Contis, France.

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Budget
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320,000 euros ht.
2,130 €/sqm.

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Photography
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BAST "Bureau architectures sans titre" (Untitled Architecture Office) was developed by Laurent Didier, Mathieu Le Ny, Louis Leger and Jean-Baptiste Friot in 2013, working as a cooperative since 2016, where pairs of architects lead each of the firm’s projects, and individuality of each partner or employee of the agency is erased in favour of the expression of collective work.

They have won the AJAP Award 2018 and the Europe 40under40 Award 2018, as well as the Lauréat du Prix Architecture Occitanie 2017 Lauréat du Prix Archicontemporaine 2017 Mention Spéciale Prix Architecture Midi-Pyrénées 2015.

 
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Littoral.
is born from an experienced perimeter
is curious and likes to share
uses pencil, cutter and makita
reads books and looks at pictures
makes models and 3d models
has empty pockets
collects and sorts
experiments and fails
tinkers and surfs
wants to build better
is not a legal entity
is not an association
is not big and shiny
is horizontal and blurred
is not an office
takes up residence in your living rooms, cafés, etc.
hasn't built much
hasn't written much
hasn't passed on much
has the desire
continue
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Published on: January 23, 2026
Cite:
metalocus, AGUSTINA BERTA
"To live in and respect the forest. M37 house by BAST + LITTORAL" METALOCUS. Accessed
<http://www.metalocus.es/en/news/live-and-respect-forest-m37-house-bast-littoral> ISSN 1139-6415
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