In Nonthaburi, Thailand, Casa de Alisa by Stu/D/O Architects is defined by the material and structural capacity of concrete. Concrete planes frame and contain the interiority, sheltering living spaces, and providing both a visual and sound barrier towards the surrounding neighbourhood and public road.
Semi-public living areas are on the ground floor, while the upper level comprises private rooms for inhabitants. Concrete planes divide each living area to maintain privacy and bound space. Concrete walls on the ground floor sit perpendicular to the site, while walls on the second floor intersect at the opposite axis.
A point of intersection between these two opposite planes provides the main structural system throughout the project. This pure structural composition allows the architecture to be reduced to its absolute minimum while also allowing for efficient construction and assembly time.
A 37-meter long-span cantilevered plane on the second floor serves as the main façade of the residence as well as a ‘backdrop’ that ties each of the quarters together.
Cast on site, wooden formwork has left a grain imprint in the concrete, a texture that is enhanced by lightwell and skylights. To determine the precise character of the grain, various experiments with formwork and texture were undertaken before casting the final product.
The result is an architecture that is somewhat monolithic in its exterior with concrete slabs that appear to be levitating from the ground while containing a sense of place and home within its interiority.