This residential project in Sabadell responds to the increasing demand for compact, efficient living, accommodating a couple seeking to downsize. Vallribera Noray Arquitectes designed a solution tailored to the constraints of a narrow, deep plot, defined by the local vernacular unit of twenty palms, or approximately four meters, which has historically shaped the pattern of row houses in the area. The design prioritises essential spatial requirements, minimising underutilised area and reducing associated carbon emissions and energy use.
Architectural layout and spatial organisation
The residence is organised across two levels, with an emphasis on internal connectivity and access to natural light. The ground floor sequence begins with a multipurpose entrance hall for bicycle storage and laundry, leading into an open-plan kitchen, living, and dining area that extends to a rear courtyard. A central core, containing a bathroom and an open staircase, functions as a light well and establishes visual continuity between levels. The first floor contains a primary bedroom, study, and secondary bathroom, all arranged around the central stairwell to optimise spatial efficiency.
Structural system and materiality
The structural approach directly reflects the interior organisation, employing a combination of reclaimed and bio-based systems to reduce embodied carbon. The upper floor is constructed as a self-supporting cross-laminated timber (CLT) volume set on existing masonry party walls. At ground level, timber beams and slats span between the CLT structure and the facades. The street elevation was restored to preserve the continuity and rhythm of the historic streetscape.
Material selection was guided by excluding decorative finishes and false ceilings, leaving the primary structure, joinery, and interior partitions exposed to reveal the natural wood texture. High-performance insulation is provided by wood fibre and external cork panels, chosen for their low environmental impact and thermal performance. The interior palette is completed with ceramic tiles from El Bruc and brickwork from El Segrià, both of which contribute thermal mass and moisture regulation.
Environmental performamnce and passive strategies
The building functions without mechanical heating or cooling, instead utilizing a high-performance envelope and passive bioclimatic strategies. In summer, cross-ventilation and stack effect, enabled by automated roof windows, maintain thermal comfort. Solar gain is controlled by traditional timber shutters and shading from a vegetated pergola in the courtyard. In winter, high insulation levels and carefully positioned glazing enable the interior to capture and retain solar energy. The elimination of redundant technical systems and reliance on the hygrothermal properties of raw materials reflect a rigorous approach to resource efficiency.
Today, the inhabitants live with exactly what is necessary. In place of air-conditioning systems and redundant rooms, the residence offers a climate-responsive environment that utilises the historic twenty palms' width to create a home that breathes and adapts to its environment.
