Rozelle Interchange

The Rozelle Interchange, delivered by Transport for NSW, transformed a former industrial site in Sydney's Inner West into over nine hectares of new public parkland above an underground motorway interchange. Studio Colin Polwarth led the urban design and architectural elements, including the pedestrian and cycling bridges, tunnel portals, motorway control centre, and The Crescent Bridge — the first of its kind in NSW. The project reconnects the long-divided suburbs of Rozelle and Annandale through a landscaped landbridge, four new bridges, and integrated active transport links to the Rozelle Bay Light Rail Station. In 2025, it received the Australian Urban Design Award for Built Outcomes, jointly awarded by the Australian Institute of Architects, the Australian Institute of Landscape Architects, and the Planning Institute of Australia.

By Studio Colin Polwarth

A bird's eye view of a multi-lane highway with traffic, a train passing while moving on a railway track, and a curved pedestrian bridge surrounded by green trees and small landscaped areas. Designed by Colin Polwarth Studio Photo by Ruth Gold
A winding elevated walkway in a park with lush green trees, set against a city skyline with tall buildings and cloudy sky in the background. Designed by Colin Polwarth Studio Photo by Ruth Gold
Cityscape with a curved elevated pedestrian walkway above lush green trees, traffic on the street below, and a skyline with skyscrapers and clouds in the background. Designed by Colin Polwarth Studio Photo by Ruth Gold
A concrete pedestrian bridge with a landscaped ramp, metal fencing, and a lone person walking underneath, with a cloudy sky overhead. Designed by Colin Polwarth Studio Photo by Ruth Gold
Empty outdoor parking garage ramp with metal railings, nearby trees, and cloudy sky. Designed by Colin Polwarth Studio Photo by Ruth Gold
Person walking their dog on a modern, curved pedestrian bridge with metal railings, surrounded by trees and under a cloudy sky. Designed by Colin Polwarth Studio Photo by Ruth Gold
A person jogging underneath a modern, elevated concrete and metal pedestrian bridge with a large metal pipe underneath and a cloudy sky above. Designed by Colin Polwarth Studio Photo by Ruth Gold
A modern building with a sloped, gray metal exterior, part of a bridge and streetlights in the background, surrounded by green bushes and plants. Designed by Colin Polwarth Studio Photo by Ruth Gold
Modern building with metallic panels, black vent, and a white street signpost in front of greenery. Designed by Colin Polwarth Studio Photo by Ruth Gold
A modern, circular wooden building with vertical slats and green vines growing on the exterior, surrounded by a grassy area and trees, under a partly cloudy sky. Designed by Colin Polwarth Studio Photo by Ruth Gold
An outdoor park with a grassy lawn, a tree, and steps in the background, with a modern pipe tower connected by a bridge-like structure. Designed by Colin Polwarth Studio Photo by Ruth Gold
A modern building with vertical wooden slats and green vines growing on it, surrounded by a well-maintained lawn and trees in the background, under a partly cloudy sky. Designed by Colin Polwarth Studio Photo by Ruth Gold
Public restroom facilities with a white tiled wall, black door, water fountain, and wooden slat privacy wall, outdoor setting with grass and trees. Designed by Colin Polwarth Studio Photo by Ruth Gold
A pedestrian and bicycle path underneath a multi-level concrete highway overpass. Designed by Colin Polwarth Studio Photo by Ruth Gold
A person with shoulder-length orange hair climbing a concrete outdoor staircase with metal railings, surrounded by greenery and graffiti on the wall in an urban setting. Designed by Colin Polwarth Studio Photo by Ruth Gold
A person riding a bicycle underneath a concrete overpass with street lamps and palm trees, in an urban park-like area. Designed by Colin Polwarth Studio Photo by Ruth Gold
A curved concrete pathway with modern concrete benches on the side, surrounded by lush green bushes and trees under a cloudy sky. Designed by Colin Polwarth Studio Photo by Ruth Gold
A person jogging on a wet outdoor pathway lined with green trees and bushes, overcast sky. Designed by Colin Polwarth Studio Photo by Ruth Gold