Overthorpe, Double Bay

Overthorpe is a former mansion in Double Bay whose gardens have retained rare Australian rainforest species and ornamental trees from the 19th century. The grounds showcase plant collections that were cultivated and expanded over decades.

The mansion was built between 1900 and 1906 and initially belonged to Sir John Hay, a Scottish immigrant who rose to become NSW Colonial Treasurer. The residence was demolished in 1980, but the gardens have survived to the present day.

The property hosted high-society gatherings and received prominent guests from Australia and abroad. The gardens reflect the preferences of wealthy early 20th-century residents who collected and displayed exotic plants.

The gardens contain mature trees such as Moreton Bay figs and silver quandongs that require careful maintenance to prevent canopy overcrowding. Visitors should expect longer walks through wooded areas and wear comfortable shoes.

A nearby exotic plant nursery was founded in 1851 and contributed significantly to the botanical diversity of the gardens. This connection to one of Australia's earliest plant propagation centers shaped the plant composition that exists there today.

Location: New South Wales

GPS coordinates: -33.87910,151.24100

Latest update: December 14, 2025 17:42