Social housing Rosny-sous-Bois (93)

Coallia Habitat

Canal Architecture

Progress/Delivery date
Études en cours

Surface area
4 721 m²

Construction cost
€10,2M excluding tax (value date 2021)

Scope of services

  • Structure
  • Construction economics
  • Electricity
  • Fluids
  • High Environmental Quality
  • Roadworks and various networks
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Refurbishment and densification of the former CNIR building to create a 169-unit social housing residence.
All services (common areas, management, maintenance) are naturally located on the ground floor.
A multi-purpose room, laundry, luggage storage and bicycle storage are the additional facilities on this same level.
The outdoor spaces provide sufficient parking as well as landscaped leisure areas, some of which have seating areas.
A clearing in the garden provides an occasional place for residents to relax and meet.

Technical characteristics

Reversible prefabricated concrete column-slab construction system (columns and slabs with no overhanging beams, enabling easy interior refurbishment over the medium term) for the extension, aligned with the structure of the existing building, with a timber-framed façade.
The vertical extended buildings will be built using a 3D modular wood construction system that is prefabricated off-site (facades, floors and load-bearing elements prepared off-site), which can also be built using a 2D modular system.
Facades made up of timber-framed walls with rock wool insulation and exterior wood cladding treated with a light silver-grey saturator for greater durability and to accomodate the wood ageing.
Light-coloured pre-grained wood cladding in relief, accommodating the ageing of the facing.
Existing brick facade is being kept.

Environmental characteristics

NF Habitat certification.
RT 2012.