Haslin Constructions


Sub Base Platypus

Sector Public Domain
Year Completed 2019
Location North Sydney, NSW
Client Sydney Harbour Federation Trust
Value $17m

This project entailed the once-in-a-lifetime rebirth of a dilapidated submarine base on Sydney Harbour, turning the facility into a vibrant commercial and tourist precinct. The complex, brownfield building works, taking place in a confined urban environment, included new facilities, heritage restorations and associated roadworks, all taking place in a small, services-rich footprint.

A central feature of this intricate project was the cantilevered tourist cliff walk, a 40m, FRP promenade, suspended 11.4m above ground. Haslin worked closely with the Harbour Trust and a plethora of stakeholders to open this precinct to the public for the first time in 150 years, ensuring that the Naval heritage of the site was retained and enhanced.