City of Sydney Modern Residential Flat Buildings

Economically planned studio or one bedroom apartment developments, these buildings facilitated the area’s celebrated bohemian social mix.

The City of Sydney Council engaged GML to undertake a targeted heritage study of 18 modernist residential flat buildings located within the Elizabeth Bay, Potts Point and Rushcutters Bay heritage conservation areas. Representing innovations in planning and materials, some of the most renowned modernist apartment designs of the period were included in the study.

Preliminary assessment of 18 buildings was undertaken, with detailed heritage significance assessments of 15 buildings to determine whether they met the threshold for local heritage listing.

The project also involved an in-depth exploration of the study area’s postwar development, including its social and historical context. This comprehensive overview not only informed the heritage assessments conducted as part of the study but also provided Council with a valuable resource to support the evaluation of other heritage items in the area in the future.

Constructed over two decades from the mid-1950s to the 1970s, these buildings highlight the contributions of celebrated architects, including Hugo Stossel & Associates; Douglas Forsyth Evans; Douglas Snelling; Harry Seidler and Associates; and Ancher, Mortlock, Murray, and Woolley. The study underscored the architectural, historical, and social significance of these buildings in shaping Sydney’s modernist urban landscape.

Following detailed heritage significance assessments undertaken by GML, nine of the properties were recommended for listing under Schedule 5 of the City of Sydney Local Environmental Plan 2012.

After a period of public consultation in late 2025, Council resolved in September 2026 to approve the amended planning proposal to heritage list eight of the recommended properties including Gemini in Potts Point, St Ursula, Oceana, Ithaca Gardens and Bayview in Elizabeth Bay, and Aquarius, Roslyn Gardens and 1-5 Clement St in Rushcutters Bay.

Learn more on the City of Sydney website.

Hero image: Aquarius, 50–58 Roslyn Gardens, Rushcutters Bay, Harry Seidler & Associates, 1965. Photo: GML

The study underscored the architectural, historical, and social significance of these buildings in shaping Sydney’s modernist urban landscape.