HYPERBLOCK: A Catalogue of Strategies for Growing Barcelona Upward

What if Barcelona's next century of growth didn't require tearing down anything at all? HYPERBLOCK refuses the binary of preservation versus densification. Instead of proposing a single masterplan for 2050, the project constructs a catalogue of nine massing strategies that can be layered above, through, and alongside the Eixample's celebrated grid, treating Ildefons Cerdà's original 133 by 133 metre blocks as a foundation rather than a limitation.

Designed by Vicky Daroca, HYPERBLOCK received Editor's Choice recognition in the Hyperblock competition. The project refuses to prescribe a finished form for Barcelona's future. It operates instead as an adaptable framework, an invitation to dialogue about how density, daylight, courtyards, housing, public programs, and skyline might be reconsidered as parts of one flexible system, all while the traditional city remains legible beneath.

A Second City Floating Above the Eixample

From above, the proposal reads like an entirely new infrastructural landscape suspended across Barcelona's historic grid. The axonometric drawing reveals horizontal structures that bridge multiple blocks, circular volumes forming elevated courtyards, slender towers punctuating the skyline, and monumental linear elements establishing an additional spatial order above the existing rooftops. The aerial rendering at golden hour makes the scale legible: circular residential towers and canopy structures hover above the existing urban fabric, casting long shadows that trace the outlines of Cerdà's blocks on the streets below.

The relationship between old and new is precisely calibrated. The design proposes a corresponding maximum height of approximately 113 metres, allowing the city to grow vertically while retaining a proportional relationship to its established urban dimensions. The familiar two-dimensional grid develops into what Daroca describes as a "3D city," where new structures occupy air rights, extend from rooftops, rise through courtyards, and connect previously separated parts of the urban fabric. Neither the historic city nor the new layer dominates; they operate simultaneously.

Nine Ways to Add Density Without Erasure

The intellectual backbone of HYPERBLOCK is its catalogue of nine possible massing systems. Each one produces a different relationship between density, open space, building height, circulation, and the existing city. The Aqueduct stretches linear structures across the grid, creating elevated development while maintaining significant openness beneath. The Lantern introduces circular volumes. Other strategies reconfigure courtyards, towers, and horizontal platforms in distinct combinations. No single strategy is presented as the answer; the point is that Barcelona's growth should be negotiated over time, not locked in by a single design decision made today.

The drone-level view captures this logic at work: repeating circular and linear tower structures hover above low-rise neighborhoods, each cluster producing its own microclimate of shadow, ventilation, and sightline. The variety within repetition echoes Cerdà's own method, where the regularity of the grid made room for enormous diversity at the scale of individual blocks and intersections. Daroca extends that principle vertically, arguing that consistency of framework need not mean uniformity of outcome.

The City After Dark: Infrastructure as Luminous Landscape

The night renderings transform the proposal's character entirely. Illuminated circular towers and the elevated infrastructure grid glow against the lit street network below, making visible the two distinct systems of urban order operating in parallel. The original city reads as a warm, familiar fabric of streetlights and apartment windows. The new layer appears as something more precise: a constellation of programmed volumes whose lighting reveals their internal life to the city at large.

These images do more than illustrate atmosphere. They demonstrate that the elevated structures are not hermetic objects but active participants in the public realm. Light spills downward, connecting the upper layer to the streets below and suggesting that the boundary between existing city and proposed framework is porous rather than absolute. The nighttime views also underscore the project's ambition: this is not a single building or even a district, but an urban system scaled to the entire Eixample.

Why This Project Matters

HYPERBLOCK's greatest contribution is methodological. By refusing to deliver a single masterplan, Daroca sidesteps the trap that catches most speculative urban proposals: the pretense of certainty about conditions decades away. Instead, the project offers a toolkit, a set of spatial logics that future designers, planners, and communities could deploy in response to needs that don't yet exist. The nine massing strategies function less as prescriptions and more as proof that Barcelona's grid can absorb radical densification without losing the legibility that makes it extraordinary.

The project also reframes a question that most cities struggle with: how to honor a powerful heritage plan while accommodating contemporary pressures. By treating Cerdà's grid as infrastructure rather than artifact, HYPERBLOCK argues that preservation and transformation are not opposing forces. They are, potentially, the same operation conducted at different altitudes. For a city already grappling with housing demand, tourism pressure, and climate adaptation, that reframing alone is worth serious attention.

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About the Designers

Designer: Vicky Daroca

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Project credits: HYPERBLOCK by Vicky Daroca Hyperblock (uni.xyz).