Limestone and plywood pavilion wins Tallinn Architecture Biennale

Limestone, plywood, rebar and rope are the only structural ingredients in Resonance, the central pavilion of the 2026 Tallinn Architecture Biennale (TAB), which runs from 9 September to 30 November 2026.

Shanghai- and Tokyo-based studio Aru Ma- Architects designed the pavilion as the winning entry of a TAB competition. It sits outside the Estonian Museum of Architecture, on a traffic island in the heart of the Estonian capital.

What does the pavilion look like?

Resonance takes the form of a square, inward-facing courtyard. The design is meant to offer respite from its busy surroundings.

The material palette is deliberately pared-back. Aru Ma- Architects described the components as "ordinary materials," framing the project as a comment on how luxury can be achieved with limited resources. The choice also has a practical payoff: the structure can be easily demounted when the festival ends in late November.

Structurally, the pavilion is a tensile system. According to the studio, it is "a carefully balanced tensile structure" with a limestone core acting as ballast — the heavy stone anchors the tensioned elements above it.

"The project transforms strict economic and material constraints into an immersive architectural environment shaped by light, wind, sound, and gravity," Aru Ma- Architects said.

How does it answer this year's theme?

The biennale's 2026 curatorial theme is How Much?, an invitation to argue about the role of money in architecture. The same question drives the festival's main exhibition, developed by curator Stuudio Täna, an Estonian architecture practice.

Stuudio Täna architect Kertu Johanna Jõeste said the pavilion answers the brief through its methods rather than its budget. "The pavilion uses standard construction materials in unexpected ways, elevating them into something new and unique," Jõeste said.

"A spatially intriguing visual is accomplished with radically simple techniques and materials, aligning the pavilion very well with the topics of TAB 2026," she added.

In other words, the mechanism is straightforward: buy what every construction site already stocks, then assemble it in a way nobody expects. The limestone does the heavy holding, the tensile elements do the spanning, and the theme's money question answers itself.

What came before it?

TAB is an international architecture and urban planning festival that has run in Tallinn every two years since 2011. Its central pavilions have a track record of material experimentation.

Previous editions produced the Fungible Non-Fungible Pavilion, a puzzle-like structure partly designed by the public, and a bus shelter built from reclaimed materials in 2024.

Photography is by Martin Siplane.

Resonance sets the terms for this year's debate: if a ballast stone and some rope can carry a biennale pavilion, the "how much" question may cut both ways — toward spending less, but thinking harder.