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Southern Lookout: Elevated Viewing Platform in Hornsby by AJC Architects

architecture-design · 2026-05-07

The Southern Lookout, a 42-metre-long elevated viewing platform designed by AJC Architects, has been completed in Hornsby, Sydney. The project, led by Lee Collard with design team Laura Payne and Jim Koopman, occupies a 200 m² area within bushland surrounding a former rock quarry. The landscape architecture was handled by Clouston Associates, structural engineering by Arup, and other engineering by Dunnings. Curated by Miwa Negoro, the intervention offers a precise architectural response to the natural setting. Photographs by Alexander Mayes document the structure, which was completed in 2026.

Key facts

  • The Southern Lookout is a 42-metre-long elevated viewing platform.
  • Located in Hornsby on Sydney's northern edge.
  • Designed by AJC Architects, led by Lee Collard.
  • Design team includes Laura Payne and Jim Koopman.
  • Area: 200 m².
  • Completion year: 2026.
  • Landscape architecture by Clouston Associates.
  • Structural engineering by Arup.

Entities

Artists

  • Miwa Negoro
  • Alexander Mayes
  • AJC Architects

Institutions

  • AJC Architects
  • Clouston Associates
  • Arup
  • Dunnings

Locations

  • Hornsby
  • Sydney
  • Australia
  • Hornsby Quarry
  • Hornsby Park

Sources