Van Ommeren-Architects made the plans and supervised the renovation of a 1930's house in Haarlem(NL). The design is completed with the placement of a unique extension. Hidden in a common designed 1930s residential district a remarkable extension is made. On the contours of the old extension a lightweight construction realized a healthier relationship with the garden. The volume is divided into segments with opposite slopes, which optically reduce the scale. Between the different slopes, triangular windows are placed. In this way the interior is lit from above is without compromising to intimacy.