The House S was constructed in 2017 by ATKA Arquitectos. The house is located in Porto, Portugal and designed on 187.0 m2 area. Due to the open layout of the house, the natural light can invade the house with its strength, reflecting uncommon shades as opposed to other houses in the surrounding area.
The House S
The only thing remains from the original building is the surrounding shell, while previous structural parts, partitions, trusses, staircases, and partitions have been removed. However, the shells went through some changes to match the overall design.
With this, it is o wonder if the house is filled with natural light in a spectacular way.
The Exterior
For the exterior, a monolithic block of concrete was used to blend with the granite mass. The house also went with textural pine boards to ensure the two black triangles stand out of its composition.
The Interior
Simplicity yet contrast are the main ideas for the interior. The designer used a light color like grey and paired it up with the darker shade of black.
These two color combinations can be seen throughout the house S, making a harmonious contrast.
The Staircase
The curved staircase is made of wood materials and makes yet another contrast to the interior.
A wooden slat plane was incorporated to interpose the space.
The staircase also acts as an extra storage.
The Voids
An 8-meter high void is seen and reflecting surfaces where the sunlight crosses the different levels of the home.
Here is the view of the void from above. 
Another void is also presented horizontally thanks to the half-rise of the wooden platform.
From this void, you can see the entrance and the exterior, creating visual communication between the indoor and outdoor.
Via ArchdailyÂ