Extension to a private house, Stockholm
On a steep sloping site in Lillängen in Nacka stands a dilapidated but fundamentally nice and humble house from the 1930s.
Our project rearranges both floors of the existing house and adds a plywood-clad extension on its backside.
The existing stair is torn down and replaced by a new centrally placed stair liberating one short end of the house. The new stair and a new bathroom form a new central core around which the entrance floor is arranged. The kitchen is moved out into the new extension and a new sequence of rooms, from the steep sloping north side of the plot via the kitchen and the living room to the new south-facing terrace, is created. The main bedroom is placed centrally in the house while two minor bedrooms are kept in their original positions towards the west façade, now connected via a common play loft.
The basement houses a big common space, a bathroom, washing facilities, storage and a bicycle garage.
The existing windows and façade paneling are wornb down and needs replacing. The new paneling resembles the old. New windows are carried out in matte-lacquered oak on both the original house and the extension. In rethinking the plan the facades have been adjusted to better suit the new spatial organization. The top of the windows has been raised in order to let more light, sky and treetops in.
The plywood box is defined by three big window openings. One standing fixed window framing the northern slope, one high, openable window above the kitchen top and a wide window behind the kitchen sofa opening out towards the new morning terrace.
The box is built on a strict module and is clad in façade plywood. The joints are covered with wooden batons. All parts of the façade are painted I the same tone of warm grey.
The plan allows for a relatively large extension, but the buildable area is limited to a thin wedge of land on the east of the existing house. We’ve let the wedge shape inform the structure and form of the extension. The plan is based on a mirror-symmetrical, leaf-shaped structure where exterior walls and a longitudinal central beam carry transversal beams perpendicular to the central beam. A concrete basement carries two wooden stories. The basement houses a spa, the two stories above house bedrooms, a bathroom, and a common room. The original house and the extension are connected via a narrow glass link. Along the south façade towards the garden, a wooden deck functionally ties the different parts of the building together during the warmer months.
The planning regulations dictate an extension formally quite different to the original architecture. The extension is narrower and only allows for one room in depth giving it a more closed façade towards the street and a more open façade towards the garden in the south. The load-bearing structure of the extension is mirrored in the façade, where relief in the wooden paneling creates a clear order and directs the placement of openings.
In conjunction with the construction of the extension, the original house will be renovated. Both will be painted in the same shade of light grey but will be given different window colors.