Kattuntryckeriet 1 is the name of a large residential block in the area of Marieberg, on the south edge of the island of Kungsholmen in the centre of Stockholm. The building, designed by Swedish architect Gustaf Samuelsson during the 1960´s, consists of six 10-storey interconnected volumes that stand at the shoreline of lake Mälaren. The slight rotation of the building volumes optimizes the views and daylight conditions.

On top of this building sixteen new apartments are planned within the conditions of the existing zoning plan. This means that the new volume is to be built within a 45° angle from the roof’s parapet. All existing technical spaces are integrated in the new volume. 

The proposal includes six two-storey, interconnected volumes that are conceived as a metal clad roof, forming a new crown on top of the existing building. The stepping volumes are set back from the parapet, creating private terraces all the way around and at the same time minimising the impact for neighbouring properties. Large openings generate amazing views over the lake and the city.

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The project contains a variety of dwellings between 31 – 124 m2 including compact studios and duplex apartments in different forms and sizes. The layout of each apartment is the result of a balance between long view lines, intimate living spaces and spectacular views.

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​The rooftop extension involves not only utilizing the space above the existing property, but it also allows the property to reach its full potential and the existing building to be refreshed and upgraded.