Pool Barrier Inspection Victoria: Every Form 23 Checkpoint Explained (NCC 2025 Update)

Reviewed by Ryan Gaw, VBA-registered Pool Safety Inspector (Licence IN-PS 100055), Local Pool Inspections.

If you own a pool in Victoria, you’ve probably heard about the Form 23 — the Certificate of Pool and Spa Barrier Compliance that proves your pool meets Victorian safety regulations. But what actually happens during the inspection? What is the inspector looking for, and how does the new NCC 2025 reference framework affect your property?

If you’re selling your home, renting it out, or buying a property with a pool, the last thing you want is a failed inspection holding up settlement. Understanding what gets checked — and fixing the common issues before they become problems — saves you thousands in delays and repairs.

This guide walks you through every checkpoint on a Victorian pool barrier inspection, based on what we see week in and week out across hundreds of inspections in Greater Geelong, Moorabool, and Wyndham. We’ll also clarify what the National Construction Code 2025 (NCC 2025) update actually means for Victorian pool owners — the answer is more reassuring than the headlines suggest.

What a Pool Barrier Inspection Is (and What Form 23 Covers)

A pool barrier inspection is a visual and physical assessment of every component that separates your pool from the rest of your property. The inspector checks that your barrier, gate, and surrounding area meet AS 1926.1-2012 — the Australian Standard for residential swimming-pool and spa-pool safety barriers.

Form 23 is the certificate issued when your pool passes inspection. It confirms the barrier system is compliant, lists any conditions or limitations, and gets lodged with your local council within 30 days of issue. If you’re selling or renting, the buyer’s or tenant’s agent will ask for a copy.

Form 24 is issued if your pool does not pass. It lists every non-conformance found and what needs fixing before a re-inspection can be scheduled. With Local Pool Inspections, the re-inspection is included free in the original $250 all-inclusive fee — no second invoice.

NCC 2025 — What Actually Changed for Victorian Pool Owners

The National Construction Code 2025 edition (adopted from 1 May 2025) is widely discussed online, and many Victorian pool owners have asked whether it changes anything for their barrier compliance. The honest answer: for existing residential pools in Victoria, NCC 2025 doesn’t introduce new pool-barrier requirements.

Here’s why:

• NCC 2025 references AS 1926.1-2012 — the same standard Victoria has enforced for years under the Building Regulations 2018.
• Victorian pool barrier compliance is governed by the Building Act 1993 (Vic) and Building Regulations 2018 (Vic) — these are the operative laws, and they haven’t changed in 2025.
• Form 23 and Form 24 are Victorian instruments, not NCC instruments. The forms, the 4-year renewal cycle, and the council lodgement process are all set by Victorian regulation.

Where NCC 2025 does matter is in new construction: builders designing new dwellings with pools must reference the current NCC, and any new fence, gate, or barrier hardware specified must meet the same AS 1926.1-2012 baseline that’s been in force here for over a decade. So if you’re certifying an existing pool — most of our work — the inspection criteria below are exactly what they were last year.

Bottom line: don’t let NCC 2025 hype cause you to delay your Form 23 renewal. The standard your barrier needs to meet hasn’t moved.

Every Checkpoint on Your Pool Barrier

The inspector examines each component of your pool barrier system. Here’s what gets checked, in the order we typically walk a property, and where we most commonly see failures.

1. Fence Height and Construction

Minimum 1200 mm height from the outside (non-pool side). Measured at the lowest point — including where ground level slopes away from the fence.

Common failure: fence height measured at 1.2 m on flat ground but less than 1.2 m where the ground slopes down on the non-pool side. This is the most frequent issue on sloping Geelong-suburb blocks (Highton, Newtown, Belmont) where the fence runs across a grade change.

2. Vertical Rail Spacing

Gaps between vertical rails must not exceed 100 mm. Horizontal rails must not be present on the outside (non-pool side) — or, if used, must be on the pool side with the non-climbable zone clear.

Common failure: horizontal rails on the outside of the fence that create a climbing aid. This is the single most common non-conformance we see in older Geelong and Bellarine homes from the 1970s–1990s.

3. Gaps Under the Fence

No gap between the bottom of the fence and the ground exceeding 100 mm. Measured at the highest point of ground level.

Common failure: erosion, landscaping, or settling soil creating a gap over 100 mm. Also common on sloped sites where the fence steps down — the gap opens up on the downhill side after a few years of soil movement.

4. Gate Self-Close Mechanism

The gate must have a self-closing device that closes the gate from any open position — not just from 90°, but from any angle. Tension springs or hydraulic self-closers both comply.

Common failure: self-close springs that have lost tension. They close the gate from wide-open but not from cracked-open. Or the self-close tensioner is missing entirely — the gate relies on a latch but never closes itself.

5. Gate Latch and Hardware

The gate latch must be at least 1500 mm above ground level on the outside (non-pool side). The latch must be self-latching — not requiring the user to lift or press while turning.

Common failures:

• Latch height that was compliant when installed but has drifted down — or was installed at 1.5 m before landscaping raised the ground level inside the enclosure.
• Rust and corrosion on hinges and latches. Salt air near the coast (Ocean Grove, Barwon Heads, Point Lonsdale, Portarlington) accelerates this dramatically.
• Plastic hardware that has become brittle and cracks under pressure.

6. Non-Climbable Zone (NCZ)

The NCZ is the 900 mm space on the pool side of the barrier — measured from the inside edge of the fence extending 900 mm outward. This zone must be free of anything climbable, and an additional 300 mm above the top of the barrier must be clear of climbable objects.

What breaks NCZ compliance:

• Plants, trees, or shrubs within the non-climbable zone on the outside of the barrier (900 mm for pools built from May 2010; 1200 mm for pools built 1994–2010)
• Built-in seating, planters, or retaining walls within 900 mm
• Pool pumps, filter systems, or storage crates inside the NCZ
• Steps, raised garden beds, or landscaping that creates a climbable surface
• Horizontal rails on the pool-side of the fence

Critical NCZ issue: we frequently see this fail in Geelong homes from the 1970s–1990s where homeowners have renovated decks, added garden beds, or planted mature vegetation after the pool was originally certified. NCZ failures are also the #1 cause of fail-the-second-time results — a fence height fix is straightforward; an NCZ fix often involves removing or relocating mature plantings.

7. Window and Door Access Points

Any window or door that opens directly into the pool zone must be barrier-compliant in its own right — restricted opening (≤ 100 mm) or a separate compliant barrier between it and the pool.

Common failure: sliding doors from a renovated kitchen or living room directly onto the pool deck without an additional barrier.

8. Surrounding Structures

Retaining walls, pergolas, garden walls, or any feature that could give a child a leg-up to scale the barrier. The 900 mm NCZ is measured from anything climbable, not just the fence line itself.

Common Geelong-Area Failure Patterns

Across Greater Geelong, Bellarine, Moorabool and Wyndham, three patterns drive most first-inspection failures:

1. Older inland Geelong homes (Newtown, Highton, Belmont, Grovedale) — horizontal-rail fencing on the outside is the dominant issue. These were compliant under earlier interpretations but fail current AS 1926.1-2012.
2. Coastal Bellarine properties (Ocean Grove, Barwon Heads, Point Lonsdale) — corroded hinges and latch hardware after years of salt-air exposure. Worth a hardware refresh every 5–7 years even if you’re not selling.
3. New estates (Armstrong Creek, Curlewis, Tarneit, Truganina, Wyndham Vale) — handover-stage builder oversights: temporary mesh still in place, gate hardware uninstalled, NCZ planting not yet matured. New estates have the highest first-pass fail rate in our region.

How to Prepare Before Booking Your Inspection

A 30-minute walkthrough before the inspector arrives will catch 80% of common failures (see also our full pool inspection checklist for Victoria homeowners):

• Walk the entire fence line and look for any horizontal rail or climbable feature within the NCZ.
• Test the self-close from 5° open — not just from wide-open. If it doesn’t pull itself shut, the spring needs replacing.
• Measure latch height from the outside ground level.
• Check gaps under the fence with a 100 mm spacing tool (or a tennis ball — if it fits, the gap’s too big).
• Trim back any plant within 900 mm of the barrier on the pool side.
• Move pool pumps, hoses, and filters out of the NCZ.

Book Your Inspection

Local Pool Inspections is a Victorian Building Authority registered pool safety inspector (IN-PS 100055) servicing Greater Geelong, the Bellarine Peninsula, Moorabool Shire, and the City of Wyndham. Same-day Form 23 issued on-site where compliant. $250 all-inclusive — no hidden fees, free re-inspection if you don’t pass first time.

Call 0402 860 499 or book online.