Snøhetta's Shanghai Grand Opera House climbs its own spiral to the roof

A giant spiral staircase carries visitors — ticketed or not — to the roof of the Shanghai Grand Opera House, the 146,786-square-metre venue Snøhetta has completed on the Huangpu River waterfront. The building was designed to be "as much a civic destination as a performance venue", according to the studio.

The Norwegian-American firm won the international competition for the project in 2016 and developed it with state-owned East China Architectural Design & Research Institute (ECADI) plus consultants Theatre Projects and Nagata Acoustics. The staircase is the operatic gesture: it cantilevers dramatically at its peak and, per the studio, was meant to evoke anything from an unfolding fan to a dancer or a set of piano keys. Ambiguous, then. Deliberately so.

How does a foreign firm build 'Chinese'?

Snøhetta co-founder Kjetil Thorsen, who started the practice with Craig Dykers in 1989, told Dezeen the studio begins every project the same way, regardless of scale: "A cultural building, any building for that matter, must respond to its surroundings, the people who use it, the performers it serves, and the city it becomes part of."

He recounted a telling exchange. "When I last visited the site, I was asked by a Chinese architecture student how we managed to create a building that felt so Chinese despite not being from China. The answer lies in observation and understanding context."

The roof itself is the payoff. It doubles as a stage, an observation deck or simply a meeting point, and Thorsen compares the strategy to the Oslo Opera House, which Snøhetta completed in 2000. Both, he said, aim to "reduce thresholds wherever possible".

"Buildings like opera houses inevitably create thresholds through walls, doors, and ticketed programs," he said. "We see it as our responsibility to challenge those thresholds and make the building as much a civic destination as a performance venue."

His verdict on what counts as success: "A successful landmark is not only recognised by visitors, it is also embraced by the people who live around it and make it part of their everyday lives."

What's inside the radial plan?

The building contains three auditoriums, exhibition and education spaces, restaurants, and rehearsal and production areas. Together the halls seat 4,200 people:

• Harmony Hall, the main auditorium: 2,000 seats across five levels, in deep red tones meant to read as carved from a single block.
• Soar Theatre: a more intimate 1,200-seat hall.
• Third auditorium: 1,000 seats with adaptive seating and staging for experimental work, fronted by a large glass facade onto the river.

"For younger generations especially, that flexibility can help make cultural experiences feel more relevant, accessible, and connected to contemporary life," said Thorsen.

The facade shifts between transparent and opaque depending on where the studio wanted openness or privacy; expansive glass floods the light-filled lobby. Externally, white stone, glass and timber keep things bright — a deliberate contrast with the darker, more intimate halls. At night, illuminated stage towers shift colour to "animate the roof and the skyline".

What about the carbon bill?

Cutting the footprint of a building this size was, in Thorsen's words, a significant challenge given its "scale and complexity". The bright roof reflects sunlight rather than absorbing it, and the public lobby opens toward both river and park for cross-ventilation. Durable materials, an adaptable interior and a close connection to public transport round out the strategy.

The surrounding landscape ties into existing parkland, wetlands and public spaces to support local biodiversity.

Snøhetta's other current cultural work includes the Theodore Roosevelt Presidential Library in North Dakota and the rippled Glasshouse Theatre in Queensland. On the evidence of Shanghai, the firm's threshold-reduction formula travels well — a quarter-century after Oslo proved it first.

Photography by Yumeng Zhu, Tian Fangfang, Chen Hao and StudioSZ.

— Amara Osei