In 2009, the City of Strasbourg announced a competition to promote home ownership in the city and to fill gaps between buildings in the city centre: Ten small brownfield sites in urban ownership were to be sold at a low cost to owner-occupiers. In return, the applicants had to develop concepts that met three criteria: mixed use, low energy consumption and the use of renewable raw materials in the construction.

Five of the ten plots were sold in the course of the ­competition, including the 120 m2 corner property in the Krutenau ­district, on which the Strasbourg architect Dominique Coulon has meanwhile built his new residential and office ­building.