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16-20 Old Castle Hill Road
Castle Hill NSW
A Landmark Residential Gateway for Castle Hill
16-20 Old Castle Hill Road is a high-density residential proposal positioned within the Castle Hill Metro Station catchment, reinforcing the centre’s evolution into a more compact, walkable and transit-oriented urban precinct.

Located at the intersection of Old Castle Hill Road and McMullen Avenue, the site occupies a highly visible gateway position within the broader Castle Hill Centre. The proposal responds to this strategic location with a slender 42-storey built form that contributes to an emerging skyline of taller residential and mixed-use development around the Metro and retail core.

The architecture is articulated as two distinct vertical forms, helping to reduce perceived bulk and create a more legible tower composition. A carefully resolved podium establishes a human-scaled street address, integrating active edges, residential arrival, landscape planting and improved pedestrian interfaces.

The design has been refined through contextual, visual, solar and environmental testing to ensure the tower is read as part of Castle Hill’s future urban structure rather than an isolated tall form. The proposal also strengthens residential amenity through improved apartment planning, daylight, natural ventilation, acoustic performance and access to communal open space.

Connecting with Country principles have informed the spatial planning, materiality and landscape response. A warm facade palette, layered screening, integrated planting and endemic landscape strategies create a grounded architectural identity that responds to place while improving environmental performance.

The project brings together market and affordable housing within a single vertical community, with affordable housing distributed throughout the building and supported by equitable access to communal spaces, sunlight and outlook. The result is a more diverse residential offering that supports Castle Hill’s growth as a major Metro-connected centre.

16-20 Old Castle Hill Road

Location

16-20 Old Castle Hill Road, Castle Hill, NSW australia

Indigenous Lands

Bidjigal Country

Status

Development Application

Client

Urban Property Group

Key Stats

  • 42 storeys
  • 392 apartments
  • 15% affordable housing
  • 1,228m² communal open space
  • 1,106m² tree canopy cover
  • 353 car spaces
  • 179 bicycle spaces
  • Living
  • Multi-Residential
  • Mixed-Use
  • Hotels
4 Flinders Street
  • Living
  • Multi-Residential
  • Affordable Housing
Giffnock Avenue
  • Living
  • Multi-Residential
  • Retail
  • Mixed-Use
Spring Square
  • Living
  • Build to Rent
The Gladstone
  • Living
  • Multi-Residential
2 Sorrell Street
  • Living
  • Mixed-Use
  • Repositioning
  • Multi-Residential
  • Heritage
The Residence