BORÉAL / TETRARC Architectes

© Stéphane Chalmeau

Architects: TETRARC architectes
Location: , France
Client: Habitat44
Engineering: HAYS fluides, SETEB économie, IBA structure
Surface: 2,880 sqm SHON
Cost: 3,64 M€ HT
Completion: 2011
Photographs: Stéphane Chalmeau


© Stéphane Chalmeau

Tétrarc has created 39 social housing shapes as 11 “Houses” gathered side by side. The resultant continuous volume describes a light 21 degrees inflexion on its half, creating two distinct households. As the first one contains 6 rental houses, the second one is dedicated to the 5 sold houses. In order to optimize the space for living rooms without increasing reference surface areas each housing is organized around a nucleus made of a kitchen, a bathroom, toilets, and a staircase for duplex apartments. In the same purpose, accesses to the housings are located outside the building as an unexpected & playful iconic element.

© Stéphane Chalmeau

Households are characterized by a greenhouse in front of their façade. They are the continuum of the spaces inside the housing, provide more surface areas, and even are a great living volume in the duplexes. Finally, private gardens take place at the foot of each household, extending them and offering an innovative way to practice gardening in order to promote neighbourhood relationships.


Thus, Tétrarc plays on different tunes. It sets the project in modern history of individual social housing which began in 1925-1930’.
It provides an innovative answer to the sustainable social housing question with new forms and use of materials. It also provides a recalled quality of life to its inhabitants with its innovative performances of indoor spaces extended on the outside.

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* Location to be used only as a reference. It could indicate city/country but not exact address.
Cite: "BORÉAL / TETRARC Architectes" 02 Apr 2012. ArchDaily. Accessed 29 May 2015. <>
  • enceladus

    weird plans, weird façades… weird project.

  • jojo


  • P Dantas

    I really like the project. It’s simplicity and it’s old lines, but i was really loving it, but that adition in the front is unnecessary. But overall i think it’s a very good work

  • http://@ farzad

    good! good!