Introducing Sydney’s semi-submerged Green Square Library and Plaza

Introducing Sydney’s semi-submerged Green Square Library and Plaza

In an era when libraries are facing changes such the digitalisation of knowledge and privatisation of public space, a new city library in Sydney is making its mark by combining traditional function with flexibility. The new library and plaza project in Sydney’s Green Square neighbourhood has been designed by local architects Stewart Hollenstein, in association with Stewart Architecture. 

The library facility is semi-submerged underground, featuring a series of jewel-like shapes peeking above ground level and hinting at the activity below. The glass volumes take on primary shapes – rectangulars, circles and triangles – making for a sharp and carefully composed whole that combines from reading rooms to serene urban gardens. ‘The geometry of the design is intentionally loose and informal – establishing a sense of shared territory for multiple uses’, say the architects.

The clever sustainability systems used mean that rainwater can be collected underneath the plaza for re-use. Photography: Julien Lanoo

The square is expansive and delineates the plot, spanning some 8,000 sq m. By placing the library mostly subterraneously, the architects created a generous plaza that was designed to be open and flexible to accommodate a variety of events.

Sustainability was another key element in this project. Underneath the square’s paving, there is a system that collects rainwater, which is then recycled and reused in the library. Inside the building, a low-energy displacement ventilation system is embedded within the library bookshelves. 

The complex is set to become a key focal point for the area, which is predicted to grow in the next years – an added 60,000 new residents are planned to move into the district over the next 15 years, say the architects.

‘The project is a celebration of the potential of public space and public architecture and what it can mean to an emerging community’, says Matthias Hollenstein, director at Stewart Hollenstein. ‘Libraries play a unique role in our cities as highly democratic spaces. Here we designed an urban living room for all to share and to come together to tell stories.’ §

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