Casa ST is a minimalist townhouse located in Madrid, Spain, designed by Maximale. The townhouse is a rare typology in Madrid’s dense urban fabric, and Casa ST treats that rarity as a design premise. Rather than defaulting to the conventions of apartment living – stacked floors, divided rooms, an interior turned away from the street – the project reconfigures the domestic section entirely, using the vertical span of the building to sequence space, light, and outdoor threshold in ways a flat floor plan never permits.

The material palette stays deliberately narrow. Neutral finishes – plaster, stone, and unpainted surfaces – establish a consistent backdrop that recedes enough to let proportion and natural light carry the spatial experience. Wood enters selectively through furniture and wall paneling, introducing grain and warmth without disrupting the overall restraint. The effect recalls the disciplined interiors of Portuguese architects like Aires Mateus, where tonal unity amplifies rather than flattens spatial variation.

Patios and terraces are the project’s structural argument. Positioned at multiple levels rather than consolidated into a single rooftop or rear garden, they break the floor plate at intervals that pull daylight deep into the section and create visual corridors between otherwise separate rooms. Intermediate outdoor space of this kind is common in the courtyard traditions of Andalusian domestic architecture, but here it gets redistributed vertically – treated less as a fixed center and more as a recurring condition woven through the building’s height. These are not amenity spaces. They function as the primary connective tissue between floors.