Wooden panels open up in sections across the back of this concrete house in Uruguay, designed by local firm Masa Arquitectos.

Measuring 969 square feet (90 square metres), Casa Marindia is located an hour outside the South American country's capital Montevideo, in the beach town of Marindia.

The rectangular house is made primarily of concrete, but its longest external walls are treated differently.

Sliding panels of glass cover the back of the house, which can be protected by doors formed from vertical wooden slats. These wooden panels open up in sections, revealing the interior of the home room by room.

When closed, the vertical slats act as shades, only allowing a small amount of sunlight to seep inside through narrow gaps. The doors open to provide access to a porch that runs the length of the building, adding more living space.

"The envelope is a filter, a veil, capable of being opened wide, permeating the external nature in the interior artificiality of architecture," said Masa Arquitectos.

Used in combination with the glazing, the doors allow the house to be fully opened to the elements, completely closed, or partially covered.

Similar panels form the main entrance to the residence on the opposite side, while the remainder of the wall is filled in with white-painted cinder blocks.

Inside, a long hallway runs through the building, creating the only pathway linking the living quarters to two bedrooms.

The simple layout comprises an open-plan kitchen, eating and seating area, with a bathroom in between the pair of bedrooms at the opposite end.

Polished concrete floors extend throughout the space. Walls are painted white, with dark grey used on the ceilings.

White cabinets line a wall of the kitchen, which also features light wood furniture. A dining table divides the cooking and sitting areas.

A built-in bench made of poured concrete runs along the end wall, with a floating shelf and television overhead, and storage for logs underneath.

Photography is by Federico Cairoli.