Architects: Powerhouse Company, RAU
Location: Utrecht, the Netherlands
Photography: © Christian van der Kooy
Villa L is a spatially diverse three-story construction, where every floor—one is partially buried in the ground—has its own identity. To respond to the desire for a functional division of space, the house has an open plan, oriented towards the sun and the views of the garden. The house incorporates innovative sustainable measures, including hot- and cold-water storage and extensive use of photovoltaic panels.
The second floor is a green plinth on top of which stand independent volumes accommodating various bedrooms. In that respect, every room is a world of its own, providing not only privacy, but also views.
008 The use of green roofs in construction offers benefits such as reducing heating and cooling costs, decreasing storm water run-off, and filtering pollutants and CO2.
009 Different vegetation types with varying growth patterns can have different insulation properties affecting the level of heat transfer to and from the vegetation layer through the roofing system layers.
A small pavilion that can be used as a guesthouse stands in a secluded corner of the garden. Its mirrored glass skin reflects the surroundings making the structure almost invisible.
The excavations at the basement level allow the pool and guestrooms to have glazed façades and direct access to the garden. The basement also contains a dedicated area for high-end energy-saving systems.
010 A slim window frame optimizes day lighting and thermal performance. To minimize heat loss, a good solution is to inset the window frame behind the exterior insulation layer.