Project Leo, located in the community of Balmoral in Calgary, received partial funding for the incremental costs associated with building and monitoring an affordable, replicable, multi-generational infill building. The project was of particular interest because it has the potential to serve as a model for community-dense, low-energy housing designed to Passive House standards, with Net-Zero emissions.

The goal was to show the affordability and sustainability of homes built with integrated design techniques, and with on-site energy generation. Special design features included the maximization of shared walls and mechanical equipment, thereby reducing footprint and cost; air-source heat pumps; upgraded ventilation and duct systems; and an integrated home energy monitoring system.