Pool enclosure rules and permits in Ontario
The short answer
Most Ontario cities require a pool enclosure permit and an inspection before the pool is filled. Enclosures are typically at least 1.52 m (5 ft) high, hard to climb, with gates that close and latch on their own.
Last verified 2026-10-06What the Building Code checks
- Gates self-close and self-latch, with the latch high enough that kids can't reach it.
- Small gaps under and through the fence.
- Inspection before you fill the pool.
- A hot tub with a locking cover is often exempt; check your City.
Pool enclosures by city
The local rule and fee, linked to each City’s own source.
| City | Rule | Fee | Checked |
|---|---|---|---|
| Kitchener | Yes, for a pool that can hold 0.91 m (36 in) of water. The enclosure must be finished before you fill it. | $95 | 2026-10-06 |
| Waterloo | Yes. Every pool enclosure needs a permit and an inspection before the pool is filled. | $274.96 including HST | 2026-10-06 |
| Toronto | Yes. You need a zoning certificate from Toronto Building, then a pool fence enclosure permit from Municipal Licensing and Standards. | $214.79 zoning certificate, plus the enclosure permit fee | 2026-10-07 |
| Ottawa | Yes. Every pool enclosure needs a permit, even if the yard is already fenced, and that includes hot tubs, ponds and blow-up pools that hold 600 mm or more. | $257 | 2026-10-07 |
| Mississauga | Yes. The City approves the enclosure before you build, and it has to pass a final inspection before you fill the pool. | $402.53 inspection fee (HST included), plus a refundable deposit | 2026-10-07 |
| Brampton | Yes, for any outdoor pool, hot tub or pond that can hold more than 0.6 m (24 in) of water. | $175 | 2026-10-07 |
| Hamilton | Yes. The pool itself needs no building permit, but its enclosure does. | $303, plus HST where it applies | 2026-10-07 |
| London | Yes. Any pool deeper than 75 cm needs a pool fence permit before it goes in, even if a fence is already there. | $12.50 per $1,000 of construction value, minimum $200 | 2026-10-07 |
| Oakville | Yes. Pools and their enclosures go through the Town's development engineering permit, not a building permit. | $354 for an above-ground pool or hot tub enclosure | 2026-10-06 |
| Cambridge | Yes, for any pool or hot tub that can hold 76.2 cm (30 in) of water or more. | $224 above-ground or hot tub, $250 in-ground | 2026-10-07 |
| Guelph | Yes, for any pool, hot tub, swim spa or large inflatable that can hold 0.6 m of water, replacements included. | $320 for a pool, $160 for a hot tub | 2026-10-07 |
What you’ll submit
- A site plan showing the pool, the enclosure and the gates
- A cross-section of the fence with its height and openings
- Gate details: self-closing, self-latching, latch height
- The application, and an inspection before you fill the pool
Common questions
From the guide: Fence height rules in Kitchener and Waterloo
How high can a backyard fence be in Kitchener?
2.44 m (8 ft) in a rear or interior side yard.
Do I need a permit for a fence in Waterloo?
Not if it follows the Fence By-law. A pool enclosure always needs a pool enclosure permit.
How tall does a pool fence need to be in Ontario's Waterloo Region cities?
At least 1.52 m (5 ft) in both Kitchener and Waterloo.
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