Maplelawn Garden Wall Rehabilitation

The National Capital Commission is soliciting proposals for the rehabilitation and reconstruction of 285 meters of historic native limestone masonry walls at the Maplelawn Garden Estate, located at 529 Richmond Road in Ottawa. The project aims to restore the structural and aesthetic integrity of six wall sections while preserving their historic characteristics through the salvage and reinstatement of existing stone. Key technical requirements include the installation of concrete footings throughout and reinforced concrete retaining walls for the east and south sections. The performance period is scheduled across 2027, with demolition and excavation in the spring, foundations in the summer, and masonry reconstruction continuing through the fall. Award selection is based on a multi-stage evaluation where proponents must achieve a minimum technical score of 36 out of 60 to proceed to pricing. Technical evaluation focuses on project experience with heritage masonry and approach methodology, while pricing accounts for 40 points of the total score. Contractors must provide a Lead Project Manager and a Qualified Person for soil management, and maintain professional liability and errors and omissions insurance of at least 2 million dollars. Submissions must be delivered via three separate emails by October 21, 2026, and must include certifications regarding ethical labor practices and the use of artificial intelligence in proposal preparation.