085_House on a hillside

An apartment building is being built on a steeply sloping plot in Berlin, designed as a split-level building due to the particular topography. The difference in height of the terrain is compensated for by a floor offset, which is located roughly in the middle between the northern garden side and the southern street side of the property. This division means that the roof surface of the building is divided into two different pitches: The street section has a roof pitch of 55°, while the steeper garden section has a pitch of 60°. Despite these different angles of inclination, the ridge line of the roof is continuous and consistent. The building is clad in timber cladding consisting of rear-ventilated carbonized wooden slats. This choice of material not only ensures visual harmony with the natural surroundings, but is also functional, as it contributes to natural weather protection. On the street side and the garden side of the building, protruding steel balcony structures are provided to give the building additional depth and a modern touch. The wooden cladding of the building references the lush trees on the site and the surrounding area, allowing the building to blend seamlessly into the existing cityscape. The roof slopes will be covered with zinc or aluminum cladding, which is both aesthetic and functional. The roof is drained discreetly via a concealed system above the roof overhang. Solar collector panels are integrated on the roof surfaces on the east and west sides to promote the use of renewable energy and make the building more energy efficient.

 

SUSTAINABILITY

 

The building is constructed according to the principle of “simple construction” and consists of a reinforced concrete base in the basement and a pure solid timber construction on the upper floors and roof. Due to the solid timber construction, there is no need for an additional insulation layer on the outer walls above ground level. The roof surfaces are additionally insulated with a roof insulation made of wood fiber boards. The interior ceilings and load-bearing walls are also predominantly made of board stack elements. Some load-bearing interior walls are made of reinforced concrete for structural reasons. However, a high proportion of CO² is bound in the material. The outer shell is highly insulated and, together with an air heat pump, a KFW 55 standard is achieved.

Status: Under Construction

Client: Private

Year: 2022-2025

Size: 733 m² GFA

Paolo Bradicic, Marc Dufour-Feronce, Leonard Goldenbaum, Andreas Reeg