A Ghent row house, two storeys under a flat roof, expands in height. A new storey is raised on top of the existing house, a symmetrical volume under a gently sloping roof that takes as little light as possible away from the shallow back garden.

The extension is composed of prefabricated solid wood panels, between which the new floor hangs like a light wooden grid. The structure is erected autonomously on top of the existing house. Only at the end of the yard is the old stairwell extended into the new volume, a light steel staircase makes the connection.