Hybrid geometry: wobbly discs
The Hybrid’s geometry was refined through multiple iterations ultimately producing the distinctive asymmetric shape.
The seating for the oblong bowl merges arena and amphitheatre seating schemes.
This makes it possible to adapt the central viewing layout preferred for sporting events into an asymmetric, stage-centred configuration for performances. The double-curved inner bowl is entirely clad in bamboo with recessed lighting and a skylight above, blending technologically generated forms with vernacular materials that offer a warm and inviting environment.
"Most stadiums are circular buildings that enclose rectangular playing fields," says Dubbeldam. "The inner and outer rings are discrete – we found that there is no ideal adaptability in that model and designed a hybrid instead.”
As they slip past each other, the disc volumes create spatial anomalies that become signature moments.
The more oblong section of the bowl hosts VIP seating lounges.
The ramps and stairs that usher visitors to the seats create layers of horizontal and vertical interconnection, transitioning from the lively city to the calm, inward-looking space of the arena.
Ramps fold up and around the bowl to get to the future theatre lounge with an outdoor roof deck overlooking the re-invigorated wetlands and eco-park landscape.
"The lobby ramps fold around each other and access entrances all along the arena’s perimeter," says Dubbeldam, 'making a multi-varient space that organises circulation in a fluid sweep.'
Secondary program areas like a sports health centre, restaurants, and VIP lounges are incorporated throughout the building, creating a layered and dynamic environment that – more than just a container for viewing sports or performances – serves as a fully equipped events and entertainment destination.
The resulting design celebrates the communal and dynamic nature of attending a cultural event, offering a multi-dimensional visitor experience.
"Everything followed from the decision to design the building as a hybrid,' says Dubbeldam. 'What was at first a provocative proposal to the client: to create a hybrid and to optimise the building for adaptability, ultimately became the driving logic of the design.
"From the intersecting volumes emerge the building’s uniquely sculptural appearance and spatial expression – It gets identity and character, becomes a new attractor and generator of new possibilities for the future of Hangzhou."