Do I Need a Pool Fence for a Swim Spa? All 8 States Checked

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Yes, in most of Australia: a swim spa holds far more than 300mm of water, so every state and territory treats it as a pool. Only ACT law expressly lets a swim spa use a lockable lid instead; the NT allows a spa lid where no fence can be built, and NSW councils exclude swim spas from the spa-lid exemption.

The short answer

300mm is the trigger everywhere. NSW and WA use more than 300mm or 30cm; Queensland, Tasmania, the ACT and the NT use 300mm or 30cm or more; Victoria exempts pools holding less than 300mm; SA requires a barrier for all swimming and spa pools.
No lid route in Victoria, Queensland, WA, SA or Tasmania. Each regulator or council says a cover, even a lockable one, is not a barrier.
NSW: the lid exemption is for relaxation spas. Camden Council says swim spas, plunge spas and plunge spa pools do not qualify, because the test is the activity, not the name.
ACT: the law counts a swim spa as a spa. The Building Act 2004 defines spa to include a swim spa, and the regulation (republication 52, 1 October 2026) exempts a spa covered by a compliant lockable child-resistant structure, whenever installed.
The 1.2m wall test. Queensland, WA and Victoria let a pool’s or spa’s own walls form part of the barrier at 1.2m high and non-climbable; published swim spas are 1,200mm to 1,520mm tall, but the steps must still be fenced.

Swim spa barrier rules in every Australian state and territory (read at the regulator or legislation, 4 October 2026)
Jurisdiction	Depth trigger	Lockable lid instead of a barrier?	Does a swim spa get the lid route?	Can the spa walls be the barrier?
NSW	More than 300mm; a spa pool is a swimming pool	Yes for a spa pool covered by a lockable child-resistant structure of substantial construction (Reg cl 9)	No, per Camden Council: swim spas, plunge spas and plunge spa pools do not qualify	Not checked in this review; ask your certifier
Victoria	300mm; swim spas named in VBA Practice Note 05-2018	No: ‘a lockable lid is not a safety barrier’ (City of Ballarat)	No	Yes, if the walls are at least 1.2m above finished ground and non-climbable; ladder, pump and filter fenced
Queensland	300mm or more; spas included	No: a spa with a lockable lid must also have a fence (QBCC)	No	Yes, sides at least 1200mm and non-climbable; ladders and steps inside a compliant fence with a self-closing gate
Western Australia	More than 30cm; spa pools included	No: a lockable cover is not, and cannot be used instead of, a barrier	No	Yes, at least 1.2m high with nothing within 500mm that reduces the height; steps and ladders fenced
South Australia	All swimming and spa pools need a continuous barrier	No for above-ground spa pools: no regulatory standard for covers	No	Not stated on the state page
Tasmania	300mm or more; hot tubs and spas listed	No: a pool or spa cover is not a compliant barrier	No	Not stated on the regulator page
ACT	300mm or more (regulated swimming pool); ‘spa’ includes a swim spa	Yes: standing exemption for a spa, wherever located, covered by a lockable child-resistant structure of substantial construction	Yes on the legislation’s wording; ACT Planning’s web page still describes the older pre-1 May 2023 limit	Not checked; ask your certifier
Northern Territory	30cm or more; spa pools included	Only where a compliant fence cannot be built (or on an apartment balcony), on lots under 1.8ha, certified as a non-standard safety provision	Not stated; ask the Pool Fencing Unit	Not checked

Does a swim spa count as a swimming pool?

Yes, everywhere. Each jurisdiction defines a pool by the depth of water it can hold, not by what the seller calls it. A swim spa is built to swim in, so it is well past every threshold: the three published models we read hold between 6,760 and 7,900 litres.

The ACT is the one place where the law names the product. Section 83B of the ACT Building Act 2004 makes a ‘regulated swimming pool’ anything that can be filled to 300mm or more and is used mainly for human aquatic activity, says it includes a spa, and defines spa to include ‘a swim spa’. Tasmania’s regulator lists ‘hot tubs/spas’ among pools that must have a barrier at 300mm or more; the NT includes ‘an outside spa bath or spa pool’ that can hold 30cm or more.

So the real question is not whether a swim spa needs a barrier but whether a lid can be that barrier, and whether the swim spa’s own walls can be part of it. The approval, running-cost and price comparison is on swim spa vs pool; this page is about the fence.

The quotable version: in every Australian state and territory, a swim spa is a regulated pool, because it holds far more than 300mm of water.

Does my swim spa need a fence if it has a lockable cover?

In six of the eight jurisdictions, on the regulators’ and councils’ own words, yes, cover or no cover. The QBCC says that even if a spa has a lockable lid it must also have a fence. WA’s guide says a lockable cover ‘is not, and cannot be used instead of, a safety barrier’. The City of Ballarat says a lockable lid is not a safety barrier. South Australia says hard covers cannot replace a fence on above-ground spa pools because there is no regulatory standard for covers and there is no barrier when the cover is off. Tasmania’s regulator says a pool or spa cover is not a compliant barrier.

NSW has a lid exemption for spa pools: clause 9 of the Swimming Pools Regulation 2018 accepts a spa covered and secured by a lockable child-resistant structure of substantial construction. But Camden Council says ‘swim spas, plunge spas, plunge spa pools – the inclusion of the word spa does not grant the exemption’, because ‘it is about the activity that may be undertaken within the pool’. A spa with an area for swimming or aquatic play needs a barrier.

The ACT goes the other way on the wording. Table 36E of the Building (General) Regulation 2008 (republication 52, effective 1 October 2026) gives a standing exemption to a spa ‘wherever located’ that is covered and secured by a lockable child-resistant structure of substantial construction, and since the Act’s definition of spa includes a swim spa, a swim spa with a compliant lockable cover fits it. The two ACT sources disagree on timing: ACT Planning’s reform page still says the lid exemption is for spas built before 1 May 2023, while the current regulation has no date on that item. Confirm with your ACT certifier which applies to your installation.

The NT accepts a lockable, purpose-built spa lid only where a compliant fence cannot be built, or on an apartment balcony without compliant doors and windows, on residential lots under 1.8 hectares. The lid is certified as a non-standard safety provision, must lock with no more than two keys, carry an adult of about 70kg, have no gap over 10cm and stay locked when the spa is not in use. The NT page does not say whether a swim spa qualifies.

The quotable version: the ACT is the only jurisdiction whose law expressly lets a swim spa use a lockable lid instead of a fence, because it defines spa to include a swim spa.

Can the swim spa’s own walls be the pool fence? The 1.2m wall test

This is the route a swim spa has that most spas do not, because swim spas are tall. Three regulators let the walls of an above-ground pool or spa form part of the barrier:

Queensland: the City of Gold Coast says the sides of a spa pool may count if they are at least 1200mm high, cannot be climbed and meet the other criteria, but ladders or steps must be inside a compliant fence with a self-closing, self-latching gate.
Western Australia: side walls can be the barrier if they are at least 1.2m high, nothing within 500mm (objects, steps, retaining walls or ground-level changes) reduces that height, and the non-climbable zones comply. Fixed steps or ladders need their own barrier and gate, and taking the ladder away after use does not count.
Victoria: VBA Practice Note 05-2018 allows an above-ground pool’s walls if they are at least 1.2m above finished ground level and non-climbable, with a barrier around the ladder, pump and filter, 300mm clear of them.

The test, worked. Retailers publish swim spas at 1,200mm, 1,400mm, 1,520mm tall (one 6.0m single-zone model and two 5.8m models). On paper all three clear 1,200mm. Now set the 1,400mm model 300mm into a recessed slab: 1,400 − 300 = 1,100mm above ground, and the walls no longer count. The 1,200mm model fails WA’s test if anything within 500mm raises the ground beside it, such as a step, a deck edge or a planter. Moulded steps, external braces and cabinet panels with footholds can also make a wall climbable; WA says a wall with structural braces on the outside may not be usable.

The quotable version: a swim spa’s walls can be its fence in Queensland, WA and Victoria only if 1.2m stands clear above the ground beside them and the steps are fenced off separately.

The ladder-and-pump detail is on above-ground pool barrier rules for ladders and pumps.

The cheaper ways to make a swim spa legal

Fencing is the default, and on most sites it is the biggest cost after the spa, the slab and the power: see pool fence cost and what a spa costs to install for published rates. Three lawful routes can cut it:

Inside an existing barrier. The City of Gold Coast allows spa pools inside an existing certified pool barrier, provided that barrier fully meets the standard. If you already have a compliant pool fence with room inside it, the extra barrier cost can be nil.
Walls plus a small step enclosure, where the 1.2m wall test is met: you fence the access steps rather than the whole spa.
A compliant lockable cover, in the ACT under the standing exemption, or in the NT where a fence cannot be built, certified there as a non-standard safety provision, if the NT’s Pool Fencing Unit accepts it for a swim spa.

Do this sum before you buy, not after delivery: measure the wall height from the finished ground on every side, and price the barrier and the gate in the same quote as the slab. If a small pool is on the table too, compare pool quotes with the barrier priced in, and compare with plunge pool designs and cost. For a portable inflatable rather than a swim spa, see do I need a pool fence for an inflatable spa.

The quotable version: the cheapest legal fence for a swim spa is often the certified pool fence you already have.

Common questions

Do I need a pool fence for a swim spa in NSW?

Yes. The spa-lid exemption in clause 9 of the Swimming Pools Regulation 2018 is for spa pools, and Camden Council says swim spas, plunge spas and plunge spa pools do not qualify because of the activity in them, not the name.

Can I use a lockable cover instead of a fence on a swim spa in Queensland?

No. The QBCC says that even if a spa has a lockable lid it must also have a fence. The spa’s sides can form part of the barrier if they are at least 1200mm high and non-climbable, with the steps inside a compliant fence.

Does a swim spa need a fence in the ACT?

Not if it has a compliant lockable cover, on the current wording. The Building Act 2004 defines spa to include a swim spa, and table 36E of the Building (General) Regulation 2008 exempts a spa covered by a lockable child-resistant structure of substantial construction. Confirm with your certifier.

Do I need a fence for a swim spa in WA?

Yes. Rules for Pools and Spas says a lockable cover cannot be used instead of a barrier. The swim spa’s walls can serve if they are at least 1.2m high with nothing within 500mm reducing that height, and fixed steps get their own barrier.

Does a swim spa need a fence in South Australia or Tasmania?

Yes in both. South Australia says hard covers cannot replace a fence on above-ground spa pools, and Tasmania’s regulator says a pool or spa cover is not a compliant barrier for anything holding 300mm or more.

Sources

General information only, current at 2026-10-04. Pool rules differ by state and by council, and penalty amounts are updated regularly. Confirm your own obligations with your council or a registered inspector before acting.

Do I need a pool fence for a swim spa?