79100 Freiburg-Vauban (project no. 3): zero wastewater house, passive house standard, 20 WEs, energy saving concept, biogas CHP, solar power system, alternative sanitation concept, completion: 1999
| Street/District | Walter-Gropius-Strasse 22 / Settlement Vauban |
| Type | Concrete skeleton construction as new building |
| Residential units | 20 |
| Residents | 37 |
| Form of ownership | Condominiums |
Measures for sustainabilityt |
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| Ecology | Passive house. Energy saving concept. Biogas CHP. Solar power system. Achieved energy index of only 12.9 kWh per square meter and year (projected 13.6 kWh/m2a).Alternative sanitation concept, zero wastewater house with vacuum toilets and reed sewage treatment plant, as well as rainwater infiltration. Unfortunately, the biogas plant is not in operation. |
| Economics | The additional costs of the house compared to an ordinary low-energy house amount to 7% (without innovative drainage system). The project was funded by the "Deutsche Bundesstiftung Umwelt" (DBU). |
| Socio-cultural | One of the first building groups to be established on the Vauban site. Involvement of residents in the interior design of the apartments. |
| Links | www.passivhaus-vauban.de www.passivhaus-vauban.de/download.html |
| Student research project | Fang Hua/Sandra Metzner (2004) at the University of Karlsruhe,  (pdf 330 kB) |
| Text | Fang Hua/Sandra Metzner. 3/2005 |
Last Updated: December 6, 2020
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