LAOS Wraps a Barcelona Social Center Extension in Climbing Vines and Stacks It Around a Skylit Brick Atrium

Neighbourhood social centers rarely get the architectural attention given to museums or libraries, yet they carry a heavier civic load: they host the assemblies, the associations, the small offices and the evening meetings that keep a district organised. In Sants, one of Barcelona's most politically active neighbourhoods, LAOS, the practice of Xavier Botet and Albert Saboya, has completed a 1,000 m² rehabilitation and extension of the Sants Social Center. Its stated premise is simple: put people, activities and social life at the center of the architecture.

What makes the building worth studying is how literally it follows that premise. The plan is organised around a skylit void, so every office and meeting room opens onto a shared space. The outer skin is a light white steel frame that turns into a vertical garden, with planters and climbing plants on each level. Brick, timber and plywood do the rest. Nothing here is precious, and we think that is the point.

A Green Face Toward the Schoolyard

The most telling photographs show the building rising behind a schoolyard wall, a basketball hoop and a small timber shed in the foreground. That neighbour sets the tone. Instead of a hard backdrop to children's play, the facade gives the yard a gridded wall of balconies, vines and louvred screens that changes with the seasons and the time of day.

At dusk the effect reverses. The glazed tiers light up behind the plants, and the building becomes a lantern over the court, a quiet sign that the rooms are in use. For a social center, being seen at work after hours is a civic gesture in its own right.

A Steel Frame That Learns to Grow

Up close, the facade is a layered system: slender white mullions, balcony rails, planter ledges, wire mesh screens and timber or slatted blinds. Each layer has a job. The mesh gives climbers something to hold, the planters hold soil at every floor, and the blinds let occupants manage glare without losing the outward view.

The design commits to the plants as a building component rather than decoration. Red-leaved vines are already trailing over the ledges, which suggests that the facade is meant to thicken over time. The white frame looks tidy now, but it is clearly drawn as a trellis for a greener and messier future.

Thresholds on the Street

On the street side the building sits between older neighbours, a stained masonry tower and a red brick block, and the glazed volume reads as a contemporary insert into a mixed urban fabric. At ground level, a red-framed door with geometric ironwork set into a stone facade gives the center a more domestic and historic entrance.

The large glazed opening beside that door is just as important. A person working at a table is visible from the pavement, and that transparency matters for a building that depends on residents walking in without an appointment.

The Atrium as a Public Room

The atrium is the building's main idea. Red brick walls rise on every side, white-railed walkways wrap the void, and a white steel truss skylight brings daylight down through the full height. Timber doors on each landing make every room readable from the floor below, so the whole organisation is visible at a glance.

The paper bunting strung under the glass is a small detail with a lot of meaning. It looks like a leftover from a neighbourhood celebration, and it shows that the void is used as a gathering space, not only as a light well. The architecture provides a frame the community can dress up.

Galleries Lined with Planters

The planting strategy continues inside. White planter boxes run along each gallery edge, with ferns and climbers spilling toward the void, and hanging planters fill the vertical space. Under the skylight, sun casts moving shadows across the floors, and the atrium starts to behave like a covered courtyard.

Plywood and pine soffits warm the upper galleries, and linear light strips keep the ceiling plane clean. The palette is economical and easy to repair, which suits a building owned and used by a neighbourhood rather than a single institution.

Rooms for Meeting and Working

The double-height lobby sets an informal register with green and red ottomans, a timber stair and brick walls. Tall timber-framed windows with slatted blinds light the offices, and simple white chairs sit under pine plank ceilings. The concrete stair, screened by white steel mesh with a timber handrail, is detailed to be robust rather than showy.

Upstairs, steel grating walkways run beside glazed meeting rooms under a translucent grated roof, with vines climbing the railings. People meeting at tables stay visible through timber-framed glass doors. That mix of privacy and openness is exactly what an association hub needs: rooms you can close, in a building that never feels closed.

Plans and Drawings

The figure-ground plan marks the plot as a small black figure in the dense Barcelona grid, a reminder of how tight the site is. The floor plans show offices and meeting rooms arranged around a central void that holds the stair, along with a terrace. The longitudinal section confirms the central stair core and shows figures on every level and on the roof, so the building is drawn as inhabited from top to bottom.

The elevation and wall section are the key drawings for the facade. They show the planter balconies, climbing plants and occupants together, treating the green layer as part of the wall build-up rather than as landscaping added later.

Why This Project Matters

Civic architecture at the neighbourhood scale is often underfunded and overlooked, and it usually ends up as a generic office fit-out. LAOS shows another route. A single strong spatial move, the shared skylit atrium, turns a collection of small rooms into a visible community, and a modest kit of brick, timber and white steel keeps the project grounded and maintainable.

The planted facade is the other lesson. Instead of claiming sustainability with an image, it builds in soil, mesh and time, and gives the adjacent schoolyard a living wall. For cities trying to green dense districts one plot at a time, the Sants Social Center is a practical precedent you can learn from.

Sants Social Center by LAOS (Xavier Botet and Albert Saboya), Barcelona, Spain. Area: 1,000 m². Completed: 2025. Photography: Jose Hevia.

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