The project for the residence of the Irish Ambassador in Wassenaar consists of two parts; an extension with a carport and the high-quality renovation of an existing building. The extension contains a professional kitchen and an apartment for the cook. As a consequence of the limited space in the zoning plan, the apartment is placed half underground under the kitchen, with an incision in the landscape on the side to provide daylight. The work surface of the kitchen works as a light box for the apartment, adding an extra meter of room height along the façade. The side façade of the kitchen and apartment is a patchwork of glued sheets of glass which mirror the sloping green, making the building blend into the surrounding and almost disappear.

The two facades facing the garden and terrace are equipped with a green façade system consisting of stainless steel cassettes filled with sedum plants. Seen from the garden, the extension appears as a green hedge rather than a building. At the front side of the extension, the client needed a covered parking space for two cars. In order to conform to the zoning plan, the carport is solved as a 3 meter wide L-shaped roof, with a 10 meter cantilever covering the parking spaces. The carport is constructed entirely out of steel plates and placed on the site in one piece. The existing building contains a reception area on the ground floor, the living areas of the ambassador on the first floor, and guest rooms on the second floor.