Office in the Woods by Selgascano

Spanish architects Jose Selgas and Lucia Cano of Selgascano have designed an office for their own practice, located in the woods near Madrid in Spain.
A 20mm thick, curved window made of transparent acrylic forms the north-facing wall of the tunnel-like space.The opaque, south-facing aspect is constructed from a 110mm thick, insulated, fiber-glass and polyester sandwich, offering shade from direct sunlight.
A hinged opening attached to a weighted pulley mechanism at one end of the building allows varying degrees of natural ventilation.













(>>>from dezeen)