Built above or beside an existing detached garage. Lower foundation cost — we leverage the existing slab and structure.
Coach houses are the most cost-effective garden suite type because they reuse an existing foundation. The trade-off is a smaller footprint than a detached suite. Works on lots where a separate detached footprint isn't permitted.
Book a free walkthrough → or call (647) 932-3266| Max GFA (typical) | 40–60 m² (matches garage footprint) |
|---|---|
| Foundation | Reuses existing slab (cost saver) |
| Structure | Garage may need structural reinforcement |
| Services | Separate electrical, water, optional gas |
| Entrance | Exterior staircase to second floor |
| Eligibility | Requires existing detached garage in code-compliant condition |
| Parking required | 0 (Bill 23) — garage stays usable |
| Permit timeline | 8–12 weeks |
Lowest-cost garden suite type because foundation work is minimal.
Works on lots that won't permit a separate detached footprint due to setbacks.
Garage ground floor keeps its function — parking, storage, workshop.
Quiet workspace separated from the main house — workshop below, office above.
Coach houses built to OBC structural standards, with $2M general liability and WSIB current. Across Hamilton, Burlington, Oakville, and the GTA.