The Guaeca House by AMZ Arquitetos is located at the seaside, on the northern coast of Sao Paulo, in a gated community where wide grassy streets connect the lots to the beach. On the ground floor, social areas are distributed through an integrated space and a closed block contains the service and barbecue areas, while the second floor holds four suites and a family room. A prefabricated wooden structure, the modulation of this structure determines the spaces and is also reflected on the facade, composed of masonry panels, glass and flap wood shutters. The roof is flat at the ends and has a slope in the center that allows hot air to escape and natural light to illuminate the home’s central corridor. This sloped part of the roof also directs solar panels in the correct orientation and covers the boilers, equipments and water tanks.