Allan Green Conservatory, Botanical greenhouse in Perth, Australia

The Allan Green Conservatory was a pyramid-shaped botanical display facility on the Esplanade Reserve in Perth, built in 1979. Inside, elevated pathways let visitors look down on beds of exotic tropical plants and rare palms. The City of Perth demolished it in June 2012 for the Elizabeth Quay project.

The conservatory opened in 1979 as part of Western Australia's 150th-anniversary celebrations. It operated until 2006, when it closed before being demolished in 2012.

The conservatory was named after William Allan McInnes Green, a longtime town clerk and chief executive of Perth. The name honors his contributions to the city's growth and development.

The structure was located on Esplanade Reserve until its demolition in June 2012. It was removed to make way for the Elizabeth Quay development that now occupies the site.

The conservatory's name honours William Allan McInnes Green, Perth's long-serving town clerk and chief executive, not a botanist or plant collector. After the City closed it in 2006, it stood unused for six years before demolition in June 2012; the Elizabeth Quay project proposed marking the site and other heritage elements with signage.