This plot of land on the edge of a residential area had been unused since the late 1990s and had become overgrown and overgrown over time. The demolition of the dilapidated commercial building and some smaller storage buildings and the clearing of the site created building land for three residential buildings in an attractive location.

The two-storey building with a flat roof, which is located on the western access road of the newly developed small residential street, forms the prelude to the site on an 820 m² plot. The elongated house designed by architect Tanja Gerst blends naturally into the street view and yet stands out both formally and aesthetically. It is made of in-situ concrete in skeleton construction. In contrast to the concrete shell, which requires no further treatment or even coating, the interior walls were plastered with lime and painted white. They stand out clearly from the monolithic velvet gray exterior walls. Cantilevered canopies and differentiated outdoor areas protect against sunlight and provide a pleasant living climate. Shading systems are therefore not necessary. A few archaic materials such as concrete and oak wood were deliberately chosen for the façades. The floor coverings in the living areas and in the outdoor area are also made of oak, while the ceilings are left visible as untreated in-situ concrete ceilings. The living space, which extends over two levels, opens up to the sheltered garden with large glass fronts to the north and west. The open-plan living, dining and cooking area extends to the west via a loggia. The private bedrooms on the entrance level are oriented towards the private courtyard, which is closed off from the outside. The sloping part of the building to the east accommodates the ancillary rooms and a garage integrated into the building. A single-flight staircase connects the two floors with a living space of 180 m². 

A heat pump powered by geothermal energy and a controlled ventilation system provide heating in winter and cooling in summer. The heat pump and ventilation system are supported by efficient capillary internal insulation to control the temperature of the house. Photovoltaic elements on the flat roof keep it energy self-sufficient. The materials have been consistently chosen with sustainable and climate-friendly construction in mind. Short transportation routes, regionally sourced and produced building materials and materials that are not consumable and do not require costly maintenance were decisive factors. In the spirit of sustainability, an internal development was created here by revitalizing a commercial area that was no longer in use.  

www.inex-architektur.de 

Photos: 

Nikolay Kazakov
www.kazakov.de

(Published in CUBE Stuttgart 02|23)