UNTITLED House by Atelier JQTS – Contemporary Concrete Architecture in Cascais, Portugal

Innovative Structural Design

The UNTITLED House by  Atelier JQTS emerges from the concept of a reinforced concrete structure that harmonizes the spatial logic of the home with the demands of gravity and structural resistance. Designed as a single-family, single-story residence, the house features a ribbed concrete slab that promotes flexibility of use and adaptability for long-term living needs.

Spatial Organization & Beams

The home's structural system is defined by expressive longitudinal and transversal beams, which subtly delineate spaces without confining them. Secondary beams, only 11 cm thick, are carefully spaced to define each area and reduce the roof slab to a mere 8 cm compression blade. This roof functions as both a mechanical and architectural element, supporting the structure while shaping the spatial experience.

Minimalist Support & Symbolic Elements

Remarkably, the expansive roof is supported by just nine perimeter elements and a single central inverted pillar, creating a symbolic focal point that marks the transition between private and common areas. The house’s perimeter is completed with a secondary layer of insulated brick, seamlessly integrated within the concrete envelope.

Thoughtful Openings & Visual Rhythm

Openings in the house are intentionally limited, creating a rhythmic pattern throughout the interiors. In common areas, windows are paired to enhance the relationship with the surrounding garden and outdoor space. The kitchen introduces a circular opening, disrupting the visual rhythm to connect interiors with the natural environment.

Materiality & Architectural Expression

Raw concrete, pigmented lime, and natural wood dominate the material palette, expressing their inherent qualities. Raw pine formwork highlights the texture of concrete, while wood retains its natural color and texture in furniture and framing. Exterior walls feature reddish lime plaster that shifts subtly with sunlight, contrasting the robust concrete structure and emphasizing the permanence of concrete versus the modifiability of brick walls.

Roof & Water Management

Externally, three volumes rise from the roofline, including roof lights that illuminate interiors naturally. Two massive concrete elements on the south and east facades serve as rainwater collectors, integrating functionality and design seamlessly.

UNTITLED House exemplifies modern residential architecture where minimalist design, structural clarity, and material honesty converge to create a timeless home.

All Photographs are works of Diana Quintela