De Grassi St.
Riverside
A historic Leslieville home taken to net zero, gutted, extended on two sides, and rebuilt to generate as much energy as it uses.
Back to all ProjectsBringing a heritage home to net zero is one of the harder things you can ask a builder to do. Old houses were not built to be airtight, and every decision — insulation strategy, air sealing, window specification, mechanical selection — has to be made in service of a performance target that the original structure was never designed to meet.
This De Grassi Street home was taken back to the studs and rebuilt around that target. A side addition and a rear addition expanded the living space, a new detached garage was added at the rear, and the entire envelope was reconstructed for energy performance, with a solar array on the roof closing the gap. The result is a house that respects the streetscape of one of Toronto’s most characterful east-end neighbourhoods while performing like new construction.
Limor Mizrahi led the architecture, with interiors by Se7en Interiors.
Scope of Work
Complete gut and restoration of a historic Leslieville home - Side addition and rear addition - New detached garage - Net-zero energy performance - High-performance building envelope and mechanical systems - Rooftop solar array
Architectural Specs
- Energy Performance
- Net-zero energy performance
- Building Envelope
- High-performance envelope with rooftop solar
- Scope of Work
- Side and rear additions
- Garage
- New detached garage
- Square Footage
- Bedrooms
- Bathrooms
- Year Completed
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