This minimalist residence outside São Paulo by Studio MK27 offers residents a variety of enclosed and open spaces underneath an imposing concrete roof covered in grass.

Completed in February 2018, the longitudinal residence is named Planar House after the expansive surface that defines the roof.
"Planar House is a radical exercise in horizontality, an aspect commonly explored in the projects of the studio," said locally based Studio MK27 in a project description.

In some areas, the thick slab rests directly on a grid of cruciform columns, while in others it sits on bearing walls. However, there are no visible supporting beams throughout the house.

"This type of insertion on the plot demanded care and attention with the design of the rooftop, which is the fifth facade of the building," said the architects. Aerial photographs of the project show vegetation, skylights, and solar panels covering the roof.

The main entrance to the home from the north, on the narrow side of the long rectangular plan. An opening in a curved, made from spaced-apart bricks, leads to an entrance garden.
Inside, two volumes make up the programmed spaces of the 1,000-square-metre residence. Both are oriented north-south and run parallel to one another.

The first contains service spaces such as a playroom for children, the kitchen, and a home gym. The other is made up of five bedroom suites, laid out in a single row facing the sloped landscape.

"The living rooms are locat...