Allan Gardens Palm House – ACO Heritage Awards

Recipient of the Peter Stokes Restoration Award: Large-Scale/Team/Corporate

Completed restoration of the Allan Gardens Palm House

First opened in 1910 and designed by City architect Robert McCallum, the Allan Gardens Palm House is believed to be one of the last remaining Edwardian-era greenhouses in Canada. Its design reflects a time when Toronto drew inspiration from English horticultural traditions, embracing botanical architecture as both civic infrastructure and public experience. With its domed silhouette of detailed steelwork and expansive glazing, it has long been a cherished icon—a centrepiece of Allan Gardens, a park with a deep history of civic philanthropy, gathering, and public life.

This restoration reflects the City of Toronto’s commitment to heritage preservation and the revitalization of public space. The Palm House has been reanimated for the 21st century—its historic character honoured while improving functionality, accessibility, and environmental performance. Key elements—including the sandstone façade, 1909 entablature, finials, and transom windows—were carefully restored. A reintroduced central portico revives a long-lost feature of the original frontage, offering barrier-free access and reinforcing its connection to the landscape. The project overcame complex challenges. Construction continued while the broader conservatory remained open, maintaining public access. With care and precision, aging infrastructure was modernized. New glazing, ventilation, and mechanical systems now create a more comfortable, energy-efficient environment for both plants and people, securing the building’s future.

Led by the City’s Parks, Forestry & Recreation department and Zeidler Architecture, with heritage consultants Architects Rasch Eckler Associates Ltd. (AREA)—who also led Palm House restorations in 2006–07 and 2012–13—the project reflects a long-standing commitment to cultural stewardship. Supported by Friends of Allan Gardens, it is part of a broader civic vision to reimagine the park as an inclusive, activated, and welcoming destination.