Ontario: fence rules are local by design.

How fence rules work in Ontario

Ontario combines municipal fence bylaws with a province-wide Line Fences Act framework for certain boundary-fence disputes. The Act does not replace local height rules: Ontario states that municipalities may regulate lawful fence height and construction, and municipalities can also exempt areas from the Act. For a build decision, check the city’s fence/zoning rule first; use the Line Fences Act only for the boundary-cost/dispute issues it actually covers.

FenceRulesCanada currently covers 28 municipalities in Ontario. Choose the municipality below for the local front/side/rear rules and source. Before construction, verify the current municipal source for the exact property—especially for corner lots, pools, retaining walls, easements, heritage controls, agricultural or non-residential zoning, and over-height fences.

Province-level context: Ontario Line Fences Act guidance ↗

Hub reviewed: September 28, 2026.