Pool fencing and pool surround compliance

Updated 19 Aug 2026/7 min read/By Manttan Construction · QBCC 15030266

Queensland Development Code MP 3.4 and AS 1926.1 (Queensland modified)

1200 mm	Minimum barrier height from finished ground level, at every point along its length — including where the ground slopes.
100 mm	Maximum gap under the barrier and between vertical members. The surface underneath must be solid, not loose mulch or sand.
900 mm	Non-climbable zone measured as an arc from the top of the barrier — nothing climbable inside it: furniture, pots, BBQs, air-conditioning units, tree limbs.
1500 mm	Minimum height of the gate latch release above ground level.
Gates	Must open outwards away from the pool, and be self-closing and self-latching from any position.
1800 mm	Minimum height where a boundary fence forms part of the pool barrier, with the non-climbable zone maintained on the pool side.
300 mm	A pool or spa capable of holding more than this depth of water is a regulated pool — including portable and inflatable pools.
Certificate	A pool safety certificate (Form 23) is required to sell or lease. Private pools: valid two years. Shared pools: one year.

01 — Scope

Which pools are regulated?

Any pool or spa capable of holding more than 300 mm of water — in-ground, above-ground, indoor, portable or inflatable. All regulated pools in Queensland must be on the state pool safety register.

That catches a lot of temporary summer pools that owners assume are exempt. If it holds more than 300 mm, it needs a compliant barrier.

02 — The barrier

What makes a barrier compliant?

• At least 1200 mm high measured from finished ground on the outside, everywhere along the run.
• No gap over 100 mm under the barrier, and no vertical gap over 100 mm.
• A solid surface underneath — concrete or well-compacted ground, not mulch a child can scrape away.
• Structurally sound: panels and posts that do not flex, glass panels with correct spigot spacing.
• A CPR sign visible from the pool area, kept legible and current.

Where a house wall forms part of the barrier, windows and doors opening onto the pool area have their own requirements — permanently restricted openings, sill heights or self-closing devices. Ordinary window locks that can be left unlocked are not enough on their own.

03 — The usual failure

Why does landscaping fail so many inspections?

Because the non-climbable zone is measured as a 900 mm arc from the top of the barrier, and almost anything solid inside that arc becomes a foothold. Common offenders:

• Pot plants, garden furniture and eskies parked against the fence.
• Raised garden beds or new turf that lift the ground level and shorten the effective fence height.
• Air-conditioning condensers and pool pumps positioned too close.
• Trees and shrubs grown into climbing range.
• Horizontal rails on a neighbouring timber fence lining up with your barrier at a corner.

04 — Building nearby

How do decks, paving and retaining walls affect the barrier?

Anything that changes ground level changes the barrier height. Raising paving or building a deck next to the fence can shorten the effective height below 1200 mm, or place a climbable surface inside the non-climbable zone.

Where a deck or balcony sits over or within 900 mm of the pool fence, its balustrade generally has to meet the pool safety standard so it cannot be used as a climbing aid. Where a deck forms part of the barrier itself, slip resistance and gate detailing matter too.

This is why we set out pool-side decks and paving against the barrier requirements before pouring anything — it is far cheaper than rectification.

05 — Paperwork

When do I need a pool safety certificate?

You need a valid pool safety certificate (Form 23) to sell or lease a property with a regulated pool. A certificate for a private, non-shared pool is valid for two years; for a shared pool such as a body corporate pool it is one year.

If the pool fails, the inspector issues a nonconformity notice listing what has to be fixed, with a period to rectify and re-inspect. Most items on those notices are small: a latch, a gap, a pot plant, a gate that no longer self-closes.

06 — Neighbours

What if the pool fence is a shared boundary fence?

A boundary fence used as part of a pool barrier must be at least 1800 mm high, with the non-climbable zone maintained on the pool side. Where the neighbour side has horizontal rails that create footholds, 60-degree wedges or capping can be used to restore compliance.

Talk to your neighbour first. Where that is not possible, Queensland has a formal notice process with minimum notice periods before pool barrier fencing work begins.

Questions

Pool compliance FAQ

Still unsure how it applies to your place? Call 0402 847 873 and we will tell you straight.

How high does a pool fence have to be in Queensland?+

At least 1200 mm measured from finished ground level on the outside of the barrier, at every point along its length. A boundary fence used as part of the barrier must be at least 1800 mm.

What is the non-climbable zone?+

A 900 mm arc measured from the top of the barrier that must be kept clear of anything a child could climb — furniture, pots, BBQs, air-conditioning units, tree limbs and horizontal rails on adjoining fences.

Do I need a pool safety certificate to sell my house?+

Yes. A valid pool safety certificate (Form 23) is required to sell or lease a property with a regulated pool. Private pool certificates last two years; shared pool certificates last one year.

Can I build a deck next to my pool fence?+

Yes, but it must not compromise the barrier. Decks that raise ground level, sit inside the non-climbable zone, or form part of the barrier all have extra requirements, so the barrier is designed in from the start.

Deck & pergola rules→ Council approvals explained→ Decks & pergolas→ All guides→

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