Nasturtiums painted from a student's collage adorn a timber stadiums-themed greenhouse.

Modular Greenhouse at London’s Barbican Blends Tradition and Innovation with Dissolvable Architecture

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Written by Seth Sebastian

2026-07-15

A temporary marvel at the London Festival of Architecture

In the heart of the Barbican Estate, a unique greenhouse stands as the final highlight of this year’s London Festival of Architecture. Created by Studio Folk Architects in collaboration with the design-and-build firm Raskl, this temporary pavilion, named The Veggery, exemplifies innovative, modular design.

Design that embraces sustainability

The Veggery adopts a dismantlable design, blending seamlessly with its urban surroundings. This hexagonal, domed structure is crowned with a distinctive turnip finial, echoing the Barbican’s familiar architectural silhouette. Its evocative vaulted polytunnel roof cleverly uses water butts as structural columns, offering a playful nod to its host building’s design language.

Volunteers actively planting vegetables, following illustrations as planting guides.
Community volunteers do the actual planting the illustrated vegetables only gesture toward

Collaborative art and purposeful spaces

The pavilion’s windows display a pseudo-stained-glass effect, created from students’ paper collages during workshops with the neighboring City of London School for Girls. With timber frames built for easy assembly and disassembly, this low-tech approach emphasizes adaptability. Inside, flexible shelving holds plants and potting benches, with space reserved for community events and gatherings.

Visitors gather in large numbers under insufficient shade from nearby trees.
The turnout on opening days outpaced the shade the surrounding trees can offer

A multi-functional community hub

Patrick O’Keeffe of Studio Folk Architects emphasizes the pavilion’s multi-use functionality: greenhouse, classroom, event space, and social hub. The pavilion thrives as a community-led project, thanks in large part to collaboration with local residents and groups like the Barbican Horticultural Society, which actively involves them in its upkeep and purpose.

Pavilion resembling a garden shed located within a Brutalist estate setting.
From here the pavilion reads as a garden shed that wandered into a Brutalist estate

Integration with local initiatives

Dan Rose of Raskl highlights that the project succeeded due to the seamless integration of design and delivery, necessary for the site’s multifaceted use. The initiative is supported by the Culture Mile Business Improvement District, which invests in sustainable projects within the area. Over its initial five-year term, the BID plans to infuse up to £11 million into the community.

To see more innovative urban spaces, check out how Vancouver’s Honeycomb Timber Tower defies seismic norms with its ingenious design.

Gardeners reach shelves designed at accessible heights within the greenhouse.
Every shelf inside is built to a height a gardener can actually reach

Extending beyond the festival timeline

Set to remain at the Barbican Estate until September 2026, The Veggery’s life cycle includes a final communal meal at the end of the summer, utilizing vegetables cultivated within its structure. This expiration and renewal embody a sustainability-focused approach that challenges traditional architectural permanence.

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Reconfigurable workspace with movable items, adaptable for various workshop activities.
Nothing on this bench is fixed — the whole layout resets between workshops

A commitment to sustainable architecture

The real innovation lies not just in visual similarities or iconic motifs but in embracing sustainability through design for disassembly. This firm commitment has reshaped how architecture can serve communities, providing heritage and utility without permanence.

Functional water butts double as structural supports for the greenhouse roof.
The water butts aren’t decoration — remove them and the roof loses its columns
Greenhouse appears toy-like against the backdrop of a tall tower.
Scaled against the tower behind it, the greenhouse suddenly reads as a toy someone left in the square

Source: urdesignmag.com

Frequently asked questions

What is the purpose of The Veggery greenhouse?

The Veggery serves multiple purposes, including functioning as a greenhouse, classroom, event space, and social hub. It acts as a community-led project involving local residents and groups, making it a focal point for social and horticultural activities.

How does The Veggery embrace sustainability?

The Veggery embraces sustainability through its dismantlable design and integration with local initiatives. Its structure uses water butts as columns, and its life cycle includes a communal meal using its cultivated vegetables, challenging traditional architectural permanence.

How long will The Veggery remain at the Barbican Estate?

The Veggery is set to remain at the Barbican Estate until September 2026. Its lifecycle includes a final communal meal at the end of the summer, symbolizing its sustainable approach.