The reconversion of the ‘Hôtel des Gouverneurs Militaires de Strasbourg’ was the subject of a competition including two programs; a five star hotel in the 18th century buildings and social housing to the rear of the site. The hotel is open to all thanks to its public spaces which include a gastronomic restaurant, spa, meeting rooms and tearoom. The courtyard is animated by fine art exhibitions and organized around a pond. Its glazed bottom lights the pool of the spa located underneath. The social housing to the rear has been designed in a contemporary style in contrast to the listed building, and the entire project will be compliant with sustainable measures and laws.