The two-storey wooden house is located beside the seafront in Tongoy, north of Santiago. It was designed by Mathias Klotz in 1991 for his mother and was the Chilean architect's first major project. Clad with white-painted timber boards, the rectangular house has barely any glazing on its southern facade, while its northern elevation features large windows and balconies that face out across the beach. The house centres around a large double-height living room with a chequerboard of floor-to-ceiling glazing stretching across one wall. Wooden decking covers the floor and extends out to a terrace suspended 30 centimetres above the ground. The rest of the house is arranged with a symmetrical layout, with a ground-floor dining room and small bedroom that mirror a larger bedroom and bathroom area. Two identical bedrooms are located upstairs and both open out to recessed balconies.