Brazilian architect Flavio Castro of FCstudio has built a one-bedroom home for himself in São Paulo, with nearly all of the rooms able to fully open to the outdoors thanks to sliding walls.
Situated on corner lot in a residential neighbourhood, the two-storey Box House is concealed by a concrete wall around the property's perimeter. Sliding metal doors hide the front entrance and a driveway.

Rectangular in plan and flat-roofed, the residence was designed by Castro to take up the largest amount of buildable land, with the remainder created as a lush courtyard.
Two of the home's exterior walls are very close to the neighbours, which limited the facades that could be made of glass.

"The main challenge was to build a corner house with two facades leaning against the neighbours, which took full advantage of the terrain and natural light, while keeping privacy from the street as much as possible," said Castro's project description.
Durable materials like steel, concrete and glass were selected by the architect to keep the construction period brief, as he was in a hurry to move in.
"This was further strengthened by the adoption of prefabricated elements, although only five per cent of houses in Brazil use this technique," he said.

A key feature of Box House are the sliding glass doors and steels walls that encase the building, and allow almost the entire residence to open up to the outdoors.
On the ground floor, a lush garden merges with the indoors via...