"Les Chênes" social housing Beauchamp (95)

CDC Habitat

Atelier WRA

Construction company
Eiffage Construction Yvelines

Progress/Delivery date
Preliminary studies ongoing

Surface area
8 728 m²

Construction cost
€11,7M excluding tax

Scope of services

  • Structure
  • Electricity
  • Fluids
  • Construction economics
  • Roadworks and various networks
  • Thermal
  • Fire safety systems
Learn more


The project involves the major restructuring, refurbishment, demolition/reconstruction and extension of the existing residence on a site of around 14,000 m², comprising 3 main existing buildings. The project includes:

  • Major restructuring of buildings A & B,
  • Refurbishment of building C,
  • The construction of a new building C',
  • The construction of an extension A'.

At the end of the construction and refurbishment work, the "Les Chênes" site will include 266 housing units as well as shared spaces, offices, community facilities, laundry rooms and bicycle storage.

Technical characteristics

The existing concrete buildings are being renovated and restructured.
New reinforced concrete extensions are also planned.
The existing heating system (gas-fired) has been kept, but particular care has been taken to improve interior comfort through insulation and the building envelope.
The interior sanitary fittings and facilities have been refurbished, as have the interior fittings.

Environmental characteristics

RT ex for renovated and restructured existing buildings.
Low energy consumption buildings (BBC) Effinergie Renovation 2021 label for renovated homes.
RE 2020 for new extensions.