Do I need a permit to fill my pool with water?

Do I need a permit to fill my pool in Sydney?

No, not under the rules in force today. Sydney Water's Water Wise Guidelines apply across Sydney, the Blue Mountains and the Illawarra, and under the heading ‘Swimming pools and spas’ they say you are permitted to use drinking water to top up a pool or spa to replace water lost through normal use, and to ‘fill a new or renovated pool or spa’. The only condition attached is that run-off or overspray onto hard surfaces such as pathways is not permitted.

The legal instrument behind that page is the Notice of Water Restrictions in NSW Government Gazette No 349 of 1 December 2020, made under the Sydney Water Regulation 2017 and in force from 12.01am on 2 December 2020 ‘until further notice’. It lists filling a new or renovated pool or spa as excluded from the restrictions, provided the pool is not over-filled to the point of run-off. It also states that all exemption permits in relation to previous water restrictions are hereby revoked, except medical exemptions.

The quotable version: under Sydney Water's current Water Wise Guidelines, filling a new pool with drinking water needs no permit; the 10,000 litre permit ended with the 2019–20 drought restrictions.

Sydney Water describes the guidelines as rules that help prepare for ‘elevated water restrictions when necessary’, and says elevated restrictions are not in place. If they return, the pool rules will be whatever is gazetted then, so check at the time you fill. What the water itself costs is covered in what it costs to fill a pool with water.

Where the 10,000 litre pool permit rule came from

The rule is real. It just belongs to a drought. Sydney Water's water restrictions page, as captured by the Internet Archive on 1 March 2020 during Level 2 restrictions, said:

• Pools and spas holding 10,000 litres or less could be filled with drinking water without a pool/spa filling permit.
• Pools and spas holding more than 10,000 litres could not be filled with drinking water unless you had a pool/spa filling permit and an approved pool cover or lockable spa cover in use.
• For new pools over 10,000 litres, ‘you or your pool supplier’ applied once the pool was ready to fill.
• For existing pools, a permit to empty and refill was granted only where it was unavoidable, and had to be applied for before any water was removed.

The rule is still widely repeated as if it were current. We repeated it ourselves, with a caveat, before we could read the source. The archive copy and the 2020 gazette notice settle it: it was a Level 1 and 2 restriction, and it was replaced.

The quotable version: the 10,000 litre threshold is a drought-restriction rule, so the first question is never ‘how big is my pool’ but ‘what restriction level is Sydney on today’.

For scale, the old threshold caught almost every pool. Volume is length × width × average depth × 1,000: a small 4m × 2m plunge pool averaging 1.4m deep is 11,200 litres, already over 10,000. Only spas and the smallest plunge pools came in under it.

Melbourne, Brisbane, Perth and Adelaide: the filling rule by water authority

There is no national rule. Each water authority sets its own, and the threshold table above is the practical answer. The detail behind each row:

• Melbourne. Yarra Valley Water answers the question directly: ‘Can I fill or top-up my pool or spa? Yes. There are no restrictions on filling or topping up pools, spas or ponds under the Permanent Water Saving Rules.’ Breaching the rules themselves can bring fines.
• Brisbane. Seqwater states that water restrictions are not in place in Brisbane, and that under the region's drought response plan they will be considered when the combined level of the SEQ Water Grid dams reaches 50%. It reported the grid above 80% when we checked, and says you are currently allowed to use town water to top up your pool.
• Perth. Water Corporation describes its permanent water efficiency measures as the sprinkler watering rosters, introduced in October 2007, and aims restrictions at non-essential uses such as garden irrigation. On the pages we read it treats pool filling as a bill question, not a permit question. We found no pool-filling permit, and we would confirm with Water Corporation before a large fill.
• Adelaide. The Bureau of Meteorology's restrictions register still lists SA Water's Water Wise Measures, permanent from 1 December 2010: ‘New pools can be filled with a swimming pool permit from SA Water’, with proof of purchase of a Smart Approved WaterMark cover, or a liquid blanket with an auto-doser or six months' supply. SA Water's own pool page said the same in 2020. The same register entry says the measures were ‘currently set to expire in January 2023’, while an Internet Archive capture of 28 November 2025 shows SA Water still publishing the permit application form, citing Part 6 of the Water Industry Regulations 2012. SA Water's site returned 403 errors to every live route we tried, so we could not confirm whether the Adelaide permit is still enforced. Our page on SA Water approval for a pool covers the form's conditions. Ask SA Water before you book the fill.

The quotable version: in Melbourne, Brisbane and Sydney today you can fill a new pool without a permit; of the five cities in the table, Adelaide is the one where a pool filling permit was a standing rule, and its current status needs a call to SA Water.

What does need approval when a pool is filled or emptied

A new pool rarely waits on the water supply. What it waits on is the barrier and the final sign-off:

• NSW: the NSW Government says a new pool must not be used by anyone until an occupation certificate has been issued, and every pool must go on the Swimming Pool Register. See the NSW pool compliance certificate.
• Queensland: the certifier's final certificate feeds the QBCC pool register. See whether a Form 17 can replace a pool safety certificate.
• Victoria: see the pool inspection stages in Victoria.

Emptying is where approval most often applies. In Brisbane, Urban Utilities requires written approval before backwash goes to the sewer and never accepts pool overflows. In Western Australia, domestic pool water may not go to the sewer at all. The state-by-state positions are in what it costs to empty and refill a pool and draining a pool to the sewer in WA.

The quotable version: filling a new pool is almost never the approval that holds up the swim; the barrier inspection and the final certificate are.

The two-question check before you fill

The rules change with dam levels, so here is a check that stays right after this page dates.

A cover is worth having whether or not a permit asks for one: it is the cheapest cut to evaporation and the reason two authorities once made it a condition. See what a pool cover costs and whether it pays for itself. If you are still at the quoting stage, compare pool quotes and ask each builder who arranges the fill and whether it is in the price.

Common questions

Sources

• Sydney Water — Water Wise Guidelines
• NSW Government Gazette No 349, 1 December 2020 — Notice of Water Restrictions (Water Wise Guidelines), hosted by Sydney Water
• Sydney Water — Water restrictions (Level 2), Internet Archive capture of 1 March 2020
• Yarra Valley Water — Permanent Water Saving Rules
• Seqwater — Water Wise
• Water Corporation — Check your watering days
• Bureau of Meteorology — Water restrictions register, Greater Adelaide (SA Water Water Wise Measures)
• SA Water — Your pool, Internet Archive capture of 9 August 2020
• Urban Utilities — Discharging residential pool water

General information only, current at 2026-09-24. 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.