Lagare

Programme
Reference
386LAG
Lieu

Bonlez
1325 Chaumont-Gistoux
Belgium

Cover
Image
Image du pignon
Client
Privé
Date de fin
2026
Area
720 m²
Phase
Photographer
Karbon' architecture et urbanisme
Blocks
Boxed
Original
Image
Image intérieure
Text

An intergenerational cohousing project

Layout
Half
to the right
0

The project concerns the design of a collective housing development consisting of four households.
The families behind this initiative share a desire to live differently—rethinking the way they inhabit space through a shared place, close to nature, and conducive to everyday interactions.

The environment is designed to foster connection between generations, within a human-scale setting built on cooperation, trust, and the willingness to share certain resources.

The housing units are compactly designed, optimizing private spaces while sharing several facilities.
Among the common areas, which are separate from the private homes, are a multipurpose hall, a workshop, cellars, a shared laundry room, bicycle parking, and technical installations.
This compact, shared layout encourages community living and contributes to more responsible use of space and resources.

Layout
2 columns
to the right
0
4 columns
3/4
Image
Photo du site
Image
Photo du site
Image
Photo du site
Image
Photo du site
Text

Making the most of what's already there

Layout
1 column
to the right
0

The existing building is the starting point for this project.
It’s a small countryside house built between the 1970s and 1990s, made of red bricks and topped with fiber cement slates, located in the upper part of a large plot that slopes down to the Train river.

The project adds value to the existing site in two ways:
First, by reusing materials from the demolished structure, which are carefully dismantled and reintegrated into the new construction.
To meet programmatic and structural requirements, the above-ground portion of the house is to be demolished. A full inventory of available resources has identified materials suitable for reuse. Many recovered elements, including bricks, PVC window frames, sanitary equipment, and floor coverings, will be repurposed in the new design.

Second, the approach includes preserving the footprint of the existing building to minimize the new structure’s impact on the soil.
The central housing block is partially rebuilt on the existing cellar foundations. A second housing building is constructed as an extension of the first, and a shared hall is positioned at the entrance to the site.

The overall layout consists of three modestly-sized, aligned longhouses.
The two residential buildings, located in the center of the plot, each accommodate two households. This configuration reduces the total footprint of the development, ensures optimal landscape integration, and allows for a smooth connection between private access paths, outdoor areas, and communal spaces.

Layout
2 columns
to the right
0
3 columns
Original
Image
Image frontale
Image
Image du pignon
Image
Image du préau
3 columns
Original
Image
Photo de la maquette
Image
Photo de la maquette
Image
Photo de la maquette
Text

Energy and resource efficiency

Layout
1 column
to the right
0

The project follows a rational, efficient design approach.
Timber portal frames, arranged in a regular grid, form the primary structure of the buildings. These frames support two overhanging roofs that protect the long walls from heat and rain while creating sheltered outdoor spaces.

This structure results in a functional layout, with a technical strip at the rear and living areas facing the front, opening onto the valley.

In addition to reusing materials, the project prioritizes the use of bio-based and geo-based resources.
Wall insulation is made from straw, floor insulation from lime-hemp blocks, and roof insulation from cellulose fiber.

Exterior finishes use locally sourced, readily available materials: terracotta tiles, bricks, wooden frames, and stone slabs. Both interior and exterior plaster is made from raw earth.

Reducing environmental impact also extends to technical installations.
The homes are equipped with natural ventilation.
Underfloor heating and domestic hot water are provided via geothermal energy.
Photovoltaic panels are installed on the roofs, and rainwater is collected in shared cisterns.

Medias
Image
Axonometrie de la structure
Image à droite
Linked article
Top Align
middle
2 columns
Original
Image
Detail du projet
Image
Détail du projet
Boxed
Original
Image
Croquis du projet
Team
Karbon' architecture et urbanisme
Servais Engineering Architectural
Brouae
Date de début
2022
Page détail activée
1