For a private client, HOP designed this residential extension in Amstelveen. Sustainability was one of the key factors of the design: the walls and roof are made of wood, the cladding and window frames consist of Accoya wood (a Dutch company that supplies one of the most sustainable types of wood) and the roof contains a "natuurdak": a highly biodiverse green roof that can store and reuse large amounts of rainwater.
In terms of design, this extension is unique in its kind: the existing extension was demolished and replaced by a 6.2x6.5m open space that serves as living area and gallery space. Only one piece of furniture, a modular sofa, draws all the attention in the heart of this space. Other unique features in this space are the planter integrated into the concrete foundation and the high row of windows along one of the 6.5m side walls.
On the top floor, the extension is set back and houses a bedroom and an office space. The large square windows offer views of the Amsterdam Forest and the green roof of the floor below.
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