Cyclops house


Roof-top addition to a mid-century private residence. The main facade is clad in copper with a large cyclops window framed in dark wood. The addition also features skylights, a folding glass-wall and a large roof-top terrace overlooking the ocean. Completed 2018.

Photos: Staffan Andersson

Roof top addition clad in copper
Roof top addition clad in CNC cut copper panels

The client wanted to add a living room for the kids, a large terrace and a teen bedroom with a bath. 80 m2 all together.

The cnc cut copper panels were mounted with a 10 mm spacing between
The copper patina after a month of exposure..

The new facade is made of copper cassettes that are cnc-cut into unique pieces to fit with the diagonal lines of the facade and the varying widths of the cassettes.

.. and after 6 months
Generous skylights are placed above the stair and in the bathroom.
Inside, generous skylights are placed above the stair and in the bathroom.

The narrow stairs lead from the existing groundfloor to a spacious studio room with a foldable glass door facing the terrace. The terrace is large enough for parties and has a beautiful view.

penthouse terrace_700
A folding glass wall opens to the big terrace.

The existing house is built in foam concrete and could not bear the load of another floor. The solution was to build the addition as a wood structure placed on a new steel frame base. The horisontal steel frame sits on a series of  steel posts anchored to the foundation of the existing house.

Under construction
Plan drawing
Plan drawing
May 2018
May 2018
The same facade before the remodel
October 2018
October 2018

The addition with a large cyclops window framed in dark wood gives the existing house a new appearance when approached from the narrow driveway.

Team: Måns Tham, Mariano Tellechea, Erik Lundqvist & structural engineer Catarina Sandström (Structor) and facade engineer Volker Liesenhoff (Transform Engineers)