International architecture studio Ström Architects has designed Barcelona House, a contemporary residence set in the north-eastern hills overlooking its city namesake. The site enjoys a prime position, backed by a pine forest and facing a sweeping 180-degree panorama that takes in Barcelona to the right, the marina below, and the Mediterranean beyond.
Concept and precedent
Referencing the emblematic Stahl House in Los Angeles — American architect Pierre Koenig’s 1960 modernist icon celebrated for its daring cantilever, glass expanses, and cinematic views — Ström Architects reinterprets its mid-century modern spirit for a Mediterranean hillside. The result is a refined exploration of structure, transparency, and light, reimagined through a lens of quiet sustainability.
Designed to operate off-grid for up to six months a year, Barcelona House is conceived as a statement of understated luxury — it is both self-sufficient and environmentally attuned, yet uncompromising in design quality.
Structure and form
The home’s panoramic view was a defining force in the design. Though the house spans two storeys, it is conceived and experienced primarily as a single-level dwelling, with the lower floor discreetly embedded in the slope. The upper level accommodates the main living spaces and bedroom suite, opening onto a generous terrace framed by an L-shaped infinity pool.
The design and engineering centre on a defining gesture: a six-metre cantilevered overhang supported by a single column. This bold structural move anchors the house to its hillside setting while extending it outwards towards the view, creating a sense of balance and continuity between structure, landscape, and light, while passively shading the living spaces for year-round comfort.
Material and interior language
Inside, the open-plan layout is defined by a freestanding kitchen and a mature indoor olive tree, elements that articulate the space while reinforcing the project’s biophilic ethos. Floor-to-ceiling glazing can be fully opened, extending the floorplate and dissolving the boundary between inside and out. The restrained palette of concrete, local stone, and oak cladding lends a quiet material integrity that grounds the architecture in its landscape.
Below, the lower floor is partially embedded in the hillside and contains a large garage, gym, three guest suites, and ancillary spaces. Local planning restrictions guided this split-level approach, allowing the building to step naturally with the terrain while maintaining a minimal visual impact.
Performance and longevity
Sustainability at Barcelona House is approached through performance, material honesty, and restraint rather than certification. The design follows passive house principles — prioritising insulation, airtightness, and passive shading — and operates as a hybrid off-grid home powered by an oversized photovoltaic array and high-efficiency heat pumps. Local stone and oak cladding reduce embodied carbon and ensure longevity, while the partially buried lower floor and roof overhang provide natural thermal stability. The result is a home that quietly exceeds energy demands for much of the year, combining structural clarity with enduring environmental performance.
“Barcelona House is a true reflection of our design philosophy,” says Magnus Ström, Founder and Creative Director of Ström Architects. “More than a residence, it embodies our ethos of distilling modern living to its essentials — reducing visual noise to heighten the quality of everyday experience.”
