To address the long-standing deterioration of Canada’s official prime ministerial residence, Prime Minister Mark Carney has announced the launch of a national design-and-build competition to restore and modernize 24 Sussex Drive.
The historic residence, which has served as the official home of Canadian prime ministers for more than 75 years, has remained vacant for years due to extensive structural deterioration and decades of deferred maintenance. The federal government says the rehabilitation project aims to return the landmark to active use while preserving its heritage character.
The competition will be open exclusively to eligible Canadian firms, with an emphasis on showcasing Canadian architectural and construction expertise. The restored residence is expected to meet modern standards for security, accessibility, sustainability, and functionality while continuing to serve as both the official residence and working venue of future prime ministers.
The Royal Architectural Institute of Canada (RAIC) will advise on the competition process and assemble an independent jury to evaluate submissions. The panel will be chaired by renowned Canadian architect Moshe Safdie and will include architecture, heritage conservation, and design experts Carol Bélanger, Nicolas Demers-Stoddart, Omar Gandhi, Mamie Griffith, Patricia Kell, and Brigitte Shim.
Following the competition, the jury will recommend a winning proposal to the federal cabinet. The successful team will be responsible for both designing and constructing the project, with the government seeking proposals that combine architectural ambition with practical and achievable construction plans.
The winning design is expected to be unveiled by Canada Day on July 1, 2027.
To reduce the financial burden on taxpayers, the federal government said the Rideau Hall Foundation will lead a national, non-partisan fundraising campaign with the goal of covering all or most of the restoration costs through private donations from Canadians and philanthropic organizations.
The government says restoring 24 Sussex Drive is part of a broader effort to preserve Canada’s national institutions and heritage while ensuring they remain functional and relevant for future generations. Officials say the project is intended to transform the historic residence into a modern, secure, and sustainable national landmark that reflects Canada’s identity and aspirations.
