Laneway House Lot Coverage Calculator
Check laneway suite footprint against Toronto lot coverage, setback and height limits, including the as-of-right zoning provisions.
- Laneway Max
- 1,000 sqft
- As-of-right
- Rear Yard
- 4 m
- Setback
- Height
- 6 m
- Maximum
Formula & Statutory Rule
Formula
coverage_pct = (main + laneway) / lot_area × 100
Statutory Rule
laneway_max = 1,000 sqft; rear_setback = 4 m; height_max = 6 mRegional Benchmark Reference
| Jurisdiction / Tier | Rate or Limit | Statutory Note |
|---|---|---|
| Max size | 1,000 sqft | As-of-right |
| Rear setback | 4 m | Minimum |
| Height | 6 m | Maximum |
Frequently Asked Questions
What is a laneway house?
A laneway suite is a self-contained dwelling at the rear of a lot, facing a laneway.
How large can a laneway house be?
Toronto permits laneway suites up to about 1,000 square feet as-of-right, subject to setbacks.
What setbacks apply?
A minimum rear-yard and side-yard setback applies, and the suite must not exceed the height limit.
Do laneway houses count toward coverage?
Yes. The laneway suite footprint counts toward the lot's permitted coverage.