Pool fence guide

Pool Fence Requirements in Hamilton, Burlington & Oakville

Hamilton issues an Enclosure Permit through the Building Division; the fence must be at least 1.5 m high, pass no 100 mm sphere and have a self-closing gate latched inside at 1.35 m or higher. Burlington requires 1.2 m for wood or 38 mm chain link and 1.5 m for wrought iron. Oakville requires 1.20 m with a gate that closes within 30 seconds. Confirm current rules with your municipality before building.

By Joseph Antoine, Owner, Antoine Landscape Contractors · Last updated: October 2026

Quick answer

What does Hamilton require for a pool fence?

Hamilton Pool Enclosure By-law 16-184, amended by 22-059, applies to anything that can hold more than 0.6 m of water, including hot tubs and ponds. The City issues an Enclosure Permit through the Building Division (905-546-2720), not a general building permit, and the owner signs the October 2025 pool checklist.

Minimum height 1.5 m; 2.0 m maximum per the checklist
At least 1.0 m from the inside pool wall
No opening that passes a 100 mm sphere; chain-link mesh 38 mm or smaller
Self-closing gate, self-latching on the inside at 1.35 m or higher, with a lock
A house door may form part of the enclosure; keep it closed and locked when unsupervised, and the fence between house and pool must be see-through
You may not fill the pool until the permanent enclosure passes inspection

Enclosure Permit from the Building Division for the pool enclosure
Minimum 1.5 m high, measured from outside
At least 1.0 m from the inside pool wall
No opening that passes a 100 mm sphere
No feature that helps climbing
Self-closing, self-latching gate with a lock
Inside latch at least 1.35 m high
House-separation section must be see-through

Two key measurements inspectors check

Gaps in the fence must be too small for a child to squeeze through, and the gate latch must be set high enough that small hands can't reach it.

Fence / gate
Measurement being checked

No opening in the fence can let a 100 mm (about 4 in) sphere pass through.
The inside gate latch must be at least 1.35 m (about 4 ft 5 in) high.

Hamilton Pool Enclosure By-law 16-184 dimensional checks.

What isn't allowed in a Hamilton pool enclosure?

The by-law and the October 2025 checklist rule out several common shortcuts.

Hedges as part of the enclosure
Overhead garage doors as part of the enclosure; follow the by-law for any garage wall
Barbed materials
Anything that helps a child climb
Glass-panel fences without an Ontario P.Eng. design

Temporary fencing during construction must be diamond mesh with openings no larger than 38 mm, for a maximum of 7 consecutive days unless the Director allows longer.

What does Burlington require for a pool fence?

Burlington Pool Enclosure By-law 74-2005 applies to pools over 600 mm deep. The City reviews zoning, forestry and the enclosure together through the online Combined Residential Swimming Pool Application, which takes about 4–6 weeks and needs an Ontario Land Surveyor survey plus an arborist report or tree declaration.

1.2 m for wood or 38 mm chain link; 1.5 m for wrought iron; 1.8 m for 50 mm chain link; 2.0 m maximum
Openings 38 mm, or 100 mm if rails are more than 1.2 m apart; no more than 100 mm under the fence
Self-closing gates, self-latching at the top and on the inside; thumb latches do not qualify
Fence at least 1.2 m from the inside edge of the pool
2026 fees: $205 zoning + $344 in-ground enclosure + $61.02 forestry; hot tub $87 (the older printed checklist still shows $182/$334)

What does Oakville require for a pool fence?

Oakville Pool Enclosure By-law 2006-071 applies to pools over 0.61 m (2 ft). Pools go through a Development Engineering Permit, with a 5-day pre-screen and then 6–8 weeks of review.

Minimum height 1.20 m
Openings 38 mm by default (exceptions up to 100 mm); no more than 50 mm under the fence
Gate closes by itself within 30 seconds; latch at 1.22 m or higher; gate at least 1.52 m from the water
Fence at least 0.91 m from the water
A house door forming part of the enclosure needs a bolt or chain latch at least 1.83 m above the inside floor
A 1.22 m snow fence is required through all construction phases
A hot tub needs no permit or fence with a locked cover rated 90.72 kg
No part of the enclosure may be removed while the pool holds water

How do pool fence rules compare?

Use this as a starting checklist, then confirm with the municipality.

Pool enclosure rules by municipality
City	By-law	Permit	Key points
Hamilton	16-184 (amended by 22-059)	Enclosure Permit, Building Division	1.5 m min; 1.0 m from pool wall; 100 mm sphere; latch ≥1.35 m inside with lock; temporary fence max 7 days
Burlington	74-2005	Combined Residential Swimming Pool Application (4–6 weeks)	1.2 m wood/38 mm chain link, 1.5 m wrought iron, 1.8 m 50 mm chain link; latch top and inside; fence ≥1.2 m from water
Oakville	2006-071	Development Engineering Permit	1.20 m min; gate closes within 30 s; latch ≥1.22 m; gate ≥1.52 m from water; 1.22 m snow fence during construction

Minimum pool fence height and gate latch, by city

How to read this: The pool fence seen from the side. The orange line is the minimum fence height; the marker shows how high the gate latch must sit. Pick a city to compare.

Hamilton (incl. Ancaster): 1.5 m (2.0 m max per checklist). Gate: Self-closing; self-latching on the inside at ≥1.35 m; lock.
Burlington: 1.2 m wood or 38 mm chain link; 1.5 m wrought iron; 1.8 m for 50 mm chain link; 2.0 m max. Gate: Self-closing, self-latching at top and inside; thumb latches don't qualify.
Oakville: 1.20 m. Gate: Self-closing within 30 seconds; latch ≥1.22 m; gate ≥1.52 m from the water.

Confirm current rules with your municipality before building.

The fence must be at least the height shown, with the gate latch at the marked height; pick a city to compare.

Does a metal pool fence need to be bonded?

Yes, where it is close to the water. ESA Bulletin 68-8-4 (May 2026) requires metal fences, piping, ladders and rebar within 1.5 m of the pool water to be bonded. Metal fence posts near the pool are therefore set after the electrician's bonding work and inspection. The Licensed Electrical Contractor and ESA decide the specifics for your pool.

Why do pool fences fail inspection?

Most failures are details, not the fence panels themselves.

Gate hardware that is not truly self-closing and self-latching, or latches mounted too low
Horizontal rails or decorative features on the outside that act as a ladder
Relying on a neighbour's fence as part of the enclosure without confirming it complies
Deck stairs or house doors that give direct pool access
Gaps under the fence on sloped grade that exceed the opening rule

Frequently asked questions

How high does a pool fence need to be in Hamilton?

At least 1.5 m under Hamilton Pool Enclosure By-law 16-184, with a 2.0 m maximum on the City's checklist.

Do I need a permit for a pool fence in Hamilton?

Yes. Hamilton issues an Enclosure Permit through the Building Division (905-546-2720), and the owner signs the October 2025 pool checklist.

How high must a pool gate latch be?

Hamilton: on the inside at 1.35 m or higher, with a lock. Oakville: 1.22 m or higher. Burlington: self-latching at the top and on the inside.

Does a thumb latch count as self-latching in Burlington?

No. Burlington's pool enclosure rules do not accept thumb-latch hardware as self-latching.

How long can a temporary pool fence stay up in Hamilton?

A maximum of 7 consecutive days unless the Director allows longer, using diamond mesh with openings no larger than 38 mm.

Is a hot tub exempt from Oakville pool fencing?

Yes, when it has a locked cover rated 90.72 kg; then no permit or fence is needed. Confirm with the Town before relying on it.

Does a metal pool fence need bonding?

Yes, if any metal is within 1.5 m of the pool water (ESA Bulletin 68-8-4, May 2026). The Licensed Electrical Contractor and ESA decide the specifics.

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