Retailers must now spell out the barrier rules on every pool they sell, and the duty to fence still falls on the people at home

Since 29 September 2026, manufacturers and retailers of pools in New Zealand have had to display updated warning notices. They must also appear online wherever a pool is advertised, sold or shipped within New Zealand.

The notice was updated in March 2025, and the 18-month transition that let sellers keep using the older 2017 versions has now ended. The new notices alert buyers to the barrier rules, warn about the drowning risk and point people to information that helps them use a pool legally and safely.

The notices are new, but the rules behind them aren’t.

Who’s responsible for the pool

Any residential pool that can hold water to a depth of 400mm or more must have a physical barrier that restricts access by unsupervised children under five. The Building Act sets that rule, and it covers in-ground pools, above-ground pools, spa pools and the portable and inflatable pools that turn up in South Island backyards every summer.

The duty isn’t only the owner’s. The law names the pool owner, the pool operator, the owner of the land and the occupier of the property.

A tenant occupying a property with a pool therefore has responsibilities too. The purchaser of a pool under a hire purchase agreement is also covered, as is a lessee in certain circumstances where the premises aren’t subject to a tenancy under the Residential Tenancies Act.

The barrier must meet the Building Code requirements that apply now. A pool installed after 1 September 1987 can instead meet the code that applied when it was installed if a building consent, code compliance certificate or certificate of acceptance was issued for its barrier.

Councils must ensure residential pool barriers are inspected at least once every three years, within six months either side of the pool’s anniversary date. For a pool with a code compliance certificate or certificate of acceptance, that date is when the certificate was issued. For a pool that didn’t require building consent, the date depends on when the council was notified of the pool or became aware of its existence.

An independently qualified pool inspector can carry out the inspection, and the council may accept their certificate. If the inspector finds the barrier doesn’t comply, they must notify the council within three working days. Small heated pools are also subject to inspection requirements in certain circumstances, although a qualifying safety cover can provide an alternative to a physical barrier.

Fences and covers

Most garden fences up to 2.5 metres high don’t need a building consent. A fence built to keep children away from a pool is different. Pool barriers aren’t covered by the general exemption for fences, so a building consent is generally required for the barrier even when the pool itself is exempt from consent.

On a standard swimming pool, a cover doesn’t replace a barrier. Only a qualifying small heated pool can rely on a compliant safety cover alone, and installing a cover for that type of pool doesn’t require a building consent.

Water off the network

On lifestyle blocks and rural sections there’s often no council main. Water comes off the roof, out of a tank or up from a bore, and the household depends on its own storage and supply.

Water-storage tanks have consent rules of their own, and the limits depend on both capacity and height above ground. Under the relevant exemption, a tank holding up to 35,000 litres and sitting directly on the ground can be installed without a building consent.

The capacity limits reduce as the tank is raised, to 16,000 litres at 0.25 metres, 8,000 litres at 0.5 metres, 4,000 litres at one metre, 2,000 litres at two metres, 1,000 litres at three metres and 500 litres at four metres. Other conditions apply, and tanks outside the exemption may need a consent.

The time to plan all of this is before the slab is poured. Where the pool goes sets the fence line. Where the tank sits sets the plumbing runs.

The rules are national, but councils administer inspections and consents locally. Builders and suppliers who work across the South Island can help owners navigate those processes, from a Nelson subdivision to a lifestyle block outside Gore.