Do You Need a Permit?

In Toronto, any deck over 24 inches above grade or over 100 sqft requires a building permit. Attached decks always require permits regardless of size. The permit fee is typically $300–$800 depending on deck size.

What Changed in 2026

Toronto updated its zoning bylaw to require larger setbacks for decks near property lines. The new minimum is 1.2 meters from side lot lines, up from 0.6 meters previously. This affects many standard suburban lots.

How Long Does Approval Take?

Standard deck permits in Toronto currently take 4–6 weeks for approval. Expedited review is available for an additional fee but still takes 2–3 weeks minimum.