Barcelonas Vein: A Landscaped Spine That Bends Cerdà's Grid Toward a Pedestrian Barcelona of 2050

Few cities are as recognisable from the air as Barcelona, and few urban plans are as hard to argue with as Cerdà's. That is exactly why Barcelonas Vein is worth attention. It accepts the grid as a working asset. It does not attempt to overthrow it. Then it slips a soft, landscaped route diagonally through the blocks, loosening their interiors while their street edges stay intact. The grid survives, but the city's priorities quietly change.

Designed by Veronika Felix and selected as an Editor's Choice entry in the Hyperblock competition, the project imagines Barcelona in 2050. The city's density still drives its energy, but traffic, noise, heat, poor air quality and scarce green space no longer define daily life. The proposal frames this as sustainable urban design by reinterpretation: the chamfered intersections, perimeter blocks and continuous streets remain the foundation for the next stage of the city.

Chamfered Corners Become the Geometry of a Diagonal Park

The site plan states the thesis plainly. A triangular green space cuts across a field of octagonal courtyard blocks. Their cut-off corners, the chaflanes, are still readable at every intersection. Felix uses these corners as generators of form, not as heritage ornament. Where the vein passes, conventional perimeter blocks break into irregular courtyard buildings. Each one bends its inner edge to face the landscape.

The aerial rendering shows why this balance matters. Seen from the surrounding streets, the white massing keeps the scale and continuity of the existing Eixample blocks. Toward the wedge-shaped park, the same blocks open up and fragment. They let lawns and paved strips slide between them and pull their green courtyards into view. Against the rigid orthogonal fabric, the park reads almost as an organic insertion, and that contrast is the project's strongest architectural idea.

A Ground Plane Distributed Into Smaller Rooms

The enlarged plan shows how the vein works at walking scale. Paths converge, divide and reconnect. Planted courtyards spill toward tree-lined routes. A paved plaza with market stalls anchors the centre, at the point where movement concentrates. Pedestrian routes, bicycle paths, planting, water, recreation and gathering areas overlap rather than sit in separate zones.

The significant decision is what the plan avoids. There is no single monumental plaza. Instead, programme is spread across a network of smaller spaces, so residents meet the landscape in increments: a shaded path, a crossing between courtyards, a market corner. The hyperblock stops being a traffic-management diagram and becomes a reconsideration of what should occupy the ground of a dense city.

Housing and School Edges That Meet the Landscape Softly

The first eye-level rendering places a sloped lawn directly against a timber-shuttered housing block. Café umbrellas, tree shade and children at play fill the space between. The building does not turn its back on the park. Its ground floor feeds activity onto the grass, which is the kind of mixed-use edge that keeps a public space occupied beyond weekend afternoons.

The second view runs along a low concrete wall and planted bed toward a long gray school building under a tree canopy. Here the landscape acts as a buffer and a threshold at once. The wall is low enough to sit on, the planting softens the approach, and the canopy carries shade right up to the civic building's frontage. Public facilities sit inside the green system rather than beside it.

A Timber Market Square Scaled to Everyday Use

The final rendering takes the market from the plan and inhabits it. A timber deck carries planter boxes and striped stalls. A child kicks a ball across the square, and fallen leaves gather in the foreground. The image is deliberately ordinary, and that is its strength. It suggests the vein will hold routine life: shopping, play, lingering. It is a pedestrian street that has earned the right to be a room.

Why This Project Matters

Many hyperblock proposals treat the superblock as a subtraction, taking cars out and leaving the street to fill itself. Barcelonas Vein goes further. It treats the freed ground as a design problem that deserves its own geometry. By letting a landscaped spine bend the interiors of Cerdà's blocks while keeping their outer edges intact, Felix shows that a city's identity and its adaptation do not have to compete.

The lesson reaches beyond Barcelona. Historic grids everywhere face heat, congestion and a shortage of shared green space, and the instinct is often to choose between preservation and reinvention. This entry argues for a third path. Read the existing structure closely, find its generative elements, such as the chamfered corner, and use them to reorganise the ground plane around people. The grid stays legible, and what it serves is finally up for revision.

View the Full Project

About the Designers

Designer: Veronika Felix

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Project credits: Barcelonas Vein by Veronika Felix Hyperblock (uni.xyz).