034 Einfamilienhaus-Haus
Place:
Year:
Team:
Year:
Team:
Werder (Havel)
2021-
Marcus Friede, David Gössler, Aimée Michelfelder, Jakob Wolters und Jurek Brüggen
2021-
Marcus Friede, David Gössler, Aimée Michelfelder, Jakob Wolters und Jurek Brüggen
In many eastern German cities with shrinking populations, empty prefabricated buildings are being completely demolished in order to build a few new, detached single-family houses. In Stendal in particular, thousands of flats were demolished and replaced by sprawling estates of detached houses.
For an ecological and socially just turnaround in building, however, the reduction of demolition, construction waste and land sealing and urban sprawl is inevitable. Existing buildings with the grey energy stored in them must be used, renovated or converted as far as possible. This is countered by the dream of an individual, new single-family home, which is cherished by more than 63% of Germans. How can these positions be reconciled? Can existing prefabricated buildings be converted so that they have all the qualities of a single-family home?Undjurekbrüggen and the architecture collective OFEA have developed a prototype with the Wohnungsbaugenossenschaft Altmark eV based on a future vacant building. It is a building of the residential building series 70 (WBS70), which form the largest proportion of industrially constructed prefabricated housing in Germany.
The existing building will be preserved as far as possible and will only be demolished from above. The resulting roof areas will become gardens. Several smaller flats are combined into houses over two storeys each. The measures follow the constructive logic of the serial, joined slab building. Existing openings in the slabs, as well as all staircases, will be retained and only partially added to.In the basement, ground floor and first floor there are 8 row houses with private gardens in the courtyard. The room height of the garden-facing living spaces extends over two storeys with a clear room height of over 5 metres.The upper houses are reached through two open, vertical streets with a new lift and open staircase. The buildings are entered via front gardens. The gardens with covered terraces are located behind the houses on the roofs of the row houses. Four more single-family houses with gardens on the roofs form the upper end on the 4th floor.
The fully greened roofs compensate for the sealed floor area and continue the green district on the terraced roofs of the building. The east and west façades and parapet areas can be covered with white photovoltaic panels in the grid of prefabricated panels, so that the building supplies itself with climate-neutral energy over the course of the year.
The result is a dense yet spacious and green residential structure that combines all the qualities of single-family homes in an urban context. Compared to a typical single-family housing estate, there will be 60% more residential units and 260% more public space - with 26% less sealing. The urban structure of Soviet modernism with detached buildings in green spaces is preserved, repaired and re-used.
in collaboration with OFEA Office for Ecological Architecture
