Pre-1991 Pools: How Compliance Works for Older Properties

If your pool was built before 1991, the compliance picture is slightly different — but the headline rule is the same as for every other Victorian pool: you need a current Certificate of Pool Barrier Compliance, lodged with council via Form 23, re-certified every four years.

What changes is which version of the Australian Standard your barrier is assessed against, and what that means for the specific measurements and configurations on your property.

The practical side is unchanged. We inspect the barrier, take care of minor repairs where needed, supply your Form 23 Certificate of Pool Barrier Compliance, and lodge it with your council for you. Simple and stress-free. We work out which version of the standard applies to your pool — you don't have to.

What we handle for you

• We inspect the pool or spa barrier
• We handle minor repairs and adjustments on the spot where possible
• We supply your Form 23 Certificate of Pool Barrier Compliance
• We lodge it directly with your council

What you handle

Answering the door.

The "grandfathering" myth

Let's clear this up first. There is a persistent myth in older-property suburbs that pre-1991 pools are "grandfathered in" and don't need to be certified.

They do. The obligation to have a current Certificate of Pool Barrier Compliance lodged via Form 23 applies to every pool or spa with water depth over 300mm, regardless of when it was built. The four-year re-certification cycle applies to every pool, regardless of age.

What's different for older pools is the standard the barrier is assessed against — not whether it needs to be assessed.

For the full regulatory framework, see Pool Fence Regulations Victoria: The Complete Guide.

Which standard applies to your pool

AS1926.1 has been revised five major times since 1986. The version your barrier is assessed against depends on when the pool was built or when a building permit was last issued for barrier work:

• Pre-1991 pools — barriers are typically assessed against the version of the standard that applied when the pool was first built or last permitted. Dimensions and configurations from earlier versions of AS1926.1 may differ from the current rules.
• Pools built 1991–1993 — early consolidated AS1926.1 era.
• Pools built or permitted 1993–2007 — assessed against the relevant edition for that period.
• Pools built or permitted 2007–2012 — newer edition with stricter NCZ and gate rules.
• Pools built or permitted 2012 onwards — current edition.

The honest reality: working out which version applies to your specific property can be its own little detective exercise. We do that for you as part of the inspection — there's no extra cost, and there's no "you have to find the original permit" requirement at your end.

For the deep dive on the standard itself, see AS1926.1 Explained — The Australian Pool Fence Standard for Owners.

Why pre-1991 dimensions can differ

Earlier versions of AS1926.1 permitted some configurations the current standard wouldn't allow. Things to be aware of on older barriers:

• Slightly lower fence heights were permissible under older standards in some cases. A barrier compliant when installed in, say, 1988 may not meet the current 1,200mm rule.
• Wider gap tolerances were permissible in some early versions.
• Lower latch heights were once permitted. The current 1,500mm rule (or 1,400mm above climbable) is from a more recent revision.
• NCZ rules were not always applied in the modern 900mm form in older standards.

The practical implication: if you're assessed against the version of the standard that applied when your pool was built, an older barrier may pass even with dimensions that wouldn't be allowed if it were a new install today. That's not a loophole — it's how the standard works in transition.

What the standard won't accept, regardless of when the pool was built: a barrier that's been modified or substantially repaired without bringing the modified section up to the current standard. If you've replaced a fence section, swapped a gate, or had major landscaping done, those modifications are assessed against the current AS1926.1 — not the old version.

Heritage suburbs — common patterns

Across heritage suburbs in Melbourne — South Yarra, Toorak, Hawthorn, Kew, Camberwell, parts of Brighton and Sandringham — and across the Mornington Peninsula, we see a few recurring patterns on pre-1991 pools:

Original timber paling fences with horizontal rails. Permissible under older standards depending on rail spacing and orientation, but a high failure risk on the NCZ rule given any new climbable feature added since.

Wrought-iron heritage fences with vertical bar spacings that may or may not satisfy the gap rule depending on the exact dimensions.

Old gate hardware — heavy iron self-closing arms, traditional gravity latches. Many of these can be brought back into reliable self-close/self-latch with a service. Some need modernised hardware to pass current standards.

Mature landscaping that has grown into the NCZ over decades — trees, hedges, ornamental features.

Modifications without permits. A landscaping renovation in 2008 that altered the barrier in any way is now assessed against the 2007-onwards standard for that modified section, not the original 1980s install.

What to do if you're not sure when the pool was built

The pool may pre-date your ownership of the property by decades. The good news: you don't need to know.

When we attend the inspection, we look at the property, the barrier construction, the permit history accessible to a registered inspector, and the materials used. From those we determine which version of the standard applies. You don't need to dig out permits, search title documents, or call council. We do that part.

If you'd like a quick read before booking a full inspection, a $99 + GST FaceTime consultation is the easiest way to start.

Selling a property with a pre-1991 pool

If you're selling a property with an older pool, the principle is unchanged from any other sale: a current Certificate of Pool Barrier Compliance is required before settlement. See Selling Your Home in Victoria? Pool Compliance Before Settlement.

The one consideration specific to older pools: if the previous owner certified the pool 8 or 10 years ago and never re-certified, you'll need a fresh inspection. Don't rely on an old certificate buried in the documentation pack.

Frequently asked questions

Is my pre-1991 pool grandfathered in? The certificate obligation isn't waived for older pools. The standard the barrier is assessed against may be the earlier version that applied at the time of build.

Does the 1,200mm fence height apply to older pools? It applies to barriers built or modified under the current standard. Earlier versions of AS1926.1 may have permitted different dimensions for pools of that era.

How do I know which standard my pool is assessed against? You don't need to. We work it out as part of the inspection.

What if I've modified the pool fence since the original install? Modified or substantially repaired sections are assessed against the current AS1926.1, even on older properties.

Does my heritage iron fence comply? Possibly — vertical bar spacing, gap dimensions, latch height and gate self-close behaviour all need to be checked. We do that on the inspection.

Can mature landscaping cause a fail? Yes — overhanging branches, hedges, planters and built-up garden beds can all breach the NCZ rule. See Non-Climbable Zones — The Most-Missed Pool Fence Rule.

How much does it cost? Same as any inspection — $299 + GST for a full inspection and Form 23 lodgement.

Ready to sort an older pool?

• Quick on-camera read first? Book a $99 + GST FaceTime consultation.
• Full inspection and certificate? Book the $299 + GST full inspection and Form 23 lodgement.
• Just the gate is the issue? $199 + GST gate service.

Or call 0438 383 752. Either way, the inspection, the certificate, the council lodgement, and everything in between is on us. Simple and stress-free.

Related guides

• Pool Fence Regulations Victoria: The Complete Guide — the cornerstone.
• AS1926.1 Explained — The Australian Pool Fence Standard for Owners.
• Pool Fence Height Requirements in Victoria.
• Non-Climbable Zones — The Most-Missed Pool Fence Rule.
• Selling Your Home in Victoria? Pool Compliance Before Settlement.