The lack of affordable housing in german cities and other prospering areas in the world is getting worse and worse. Using this as a background, the task of the design was to create affordable and flexible but still high quality housing/dwelling in the city of Frankfurt. The aim was to keep the provided space per person under 25 m2 or less in order to make affordable housing in such a boom-region possible.
The area, located in Niederradsouth of the river Main is characterised by large green areas and dwelling typologies from the 1950s. Regarded from an urban perspective, the district is very homogeneous in terms of usage, building typologies and residents.
Following that “urban idea”, our design consists of a slim, north-south orientated building, that articulates a clear edge to the street south of the site.
The design is based on a collective dwelling-concept. Significant was the recognition that every working community has to provide enough individual space for every resident.
Keeping these things in mind, we structured the floor-plan into four layers.
Starting in the south, the first layer is a meandering access balcony, which mainly organizes horizontal circulation, but provides also shared outside-space for each flat.
The second layer consists out of the two-storey high, communal dwelling hall.
The eye-catching round form of the staircase in the south and two elevators ensure the vertical circulation. Behind this access-core every floor has a collective laundry room.
The construction consists of a two-storey concrete strut and joist system. All walls, except the access-core, are not load bearing components, which makes the building constructive- flexible.
The ground floor provides a public café for the whole area, a multifunctional room for the house-community and bike storage with a small repair shop. The roof-terrace is semi-private for all residents.
The facades are dominated by the horizontal railing of the access balcony. The whole building is enclosed by a red grid, which structures the façade and is part of the safety barriers and of the sun shading. Over the roof-terrace the grid forms a pergola.