13 Wood and Straw Houses for Social Housing/

NZI Architectes


Project Details



Nogent le Rotrou / France



Year (Design/Construction):

- / 2019

Area (Net/Gross):

- / 1100 m2
Operational Carbon emissions

Operational Carbon emissions (B6) kgCO2e/m2/y:

Embodied Carbon emissions

Embodied Carbon emissions (A1-A3) kgCO2e/m2:

  • Straw insulation is a natural material: it is healthy and sustainable (straw insulated houses from 100 years ago still exist).
  • Powerful (we get resistances of the order of 9 W / m².K – compare to 5 W / m².k traditionally for walls properly isolated).By opting for the construction of wood & straw, biosourced construction is favored which limits the use of unsustainable resources.
  • The constructive advantage of wood and straw construction compared to the traditional wooden structure and MOB wood frame walls is the possibility of complete prefabrication of the wall.
  • The low weight of the wooden structure and straw allows the production of large areas of factory walls.
  • The assembly line does not require a very powerful crane and the panels can be easily handled on-site with light lifting equipment.

The site, is a real park in the Gauchetiere district, Rue Jean Moulin to the west, Rue Val to the east, and Rue Paul Langevin to the north. The scenic importance of this site (a vast open-air park) allowed for free and structured planting.

The house project reacts like any other building available in the park. The northern border is processed Landscape and porous, perceived as thresholds.

Install a gated fence behind the property access. Pedestrians can continue to traverse the park through the creation of faults, porosity, and permeability that maintain distant views.

A bird’s eye view from Paul Langevin Street. The challenge of this project is not to replicate the façades that have been built, but to create other rhythms and keep them open to the site. By creating these street warps, the houses are grouped into modules. be converted. This is called a “block” of 4-5 houses.

– Block A
– Central Block B
– Block C

A and C are identical in the mirror. Center block B is slightly set back from A and C to allow for a redesign of the pedestrian walkway between the school parking lot and future homes. This setback will allow breakthroughs not only to the south, but diagonally as well. Protect your home away from the road. The houses are staggered to avoid sudden repetitions due to rough placement. Eliminating one of his two homes creates private green space and limits fencing. By changing the height of the fabric, you can change the silhouette and add vitality.

Client: Nogent Perche habitat

Team: I+A (structure) / PCETECH (économie – fluides)

Photo credits:   Juan Sepulveda Grazioli

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