Sydney’s newest mega parkland is continuing to expand, with major new recreational facilities now underway at the former Hornsby Quarry site. Spanning around 60 hectares, the growing Hornsby Park precinct is gradually being transformed from an industrial landscape into a large public green space with lookouts, walking tracks and community facilities. Now, construction has officially begun on the next stage of the project, bringing plans for sports fields, bike tracks, parking facilities and new open space a step closer to reality. The new additions will form part of the wider ‘Old Mans Valley Field of Play‘ precinct, which is expected to become one of the major recreational hubs within the sprawling parkland. Here’s what to know about the latest additions planned for the massive parkland.
What’s planned for the new Hornsby Park precinct

The Old Mans Valley Field of Play precinct is set to become the main southern entry point into Hornsby Park, connecting visitors to the wider quarry redevelopment as more sections open over the coming years. Plans for the area include a multi-purpose sporting field alongside large recreational green spaces, while new amenities such as change rooms, public toilets and storage facilities are also part of the development. Dedicated pump and jump tracks are planned for bike riders too, creating a purpose-built space with rolling rises, dips and jumps designed for different skill levels. Parking facilities and improved pedestrian access are also expected to form part of the new recreational hub.
The latest works build on the first completed stage of Hornsby Park, which opened last month and introduced the Crusher Plant Precinct, Southern Lookout and Heritage Steps to the public for the first time. Set within the dramatic former quarry landscape, the area combines preserved industrial elements with new walking paths, viewing areas and open space overlooking the vast quarry walls. Additional walking and cycling trails, recreational zones and lookouts are expected to roll out gradually as the long-term transformation of the site continues.
Construction on the Old Mans Valley Field of Play precinct is expected to wrap up in mid-2027, weather permitting. The project is partly funded through the Australian Government’s Thriving Suburbs Grant Program, which contributed more than $12 million towards the development. As work continues across the wider Hornsby Park site, more sections of the former quarry are expected to progressively open to the public. Read more about the project here.