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F9 Restricting access to residential pools

Restricting access by young children to residential pools.

On 1 January 2017 the Building (Pools) Amendment Act repealed the Fencing of Swimming Pools Act and inserted new provisions into the Building Act 2004.

The Amendment Act created Building Code clause F9. 

Building Code clause F9 – Means of restricting access to residential pools on the Legislation website sets out requirements for restricting access to residential pools.

This clause has the requirements to prevent unsupervised access by children under five years of age to residential pools.

It requires barriers around pools to restrict unsupervised access by children. Barriers can include gates and suitably constructed doors. Some small heated pools may have a removable cover rather than a surrounding barrier.

F9/AS1 provides the Acceptable Solution for swimming pool barriers in general. F9/AS2 provides the Acceptable Solution for covers which may be used on above ground small heated pools.

The Building Act now requires residential pools to be inspected every three years by territorial authorities or independently qualified pool inspectors (IQPIs).

Independently qualified pool inspectors has further information on pool barrier inspections.

Manufacturer and retailer notices has information about notices that manufacturers and retailers must supply with pools.

Prior to 1 January 2017, determinations about pool safety were issued relating to Building Code clause F4. These determinations provide some useful guidance for Building Code clause F9.

If you have questions or need guidance about your pool, please contact your local council.

Contact us if you have any other questions.


Acceptable Solutions and Verification Methods

Current version

These are issued by MBIE to provide one way of complying with the Building Code and must be accepted by BCAs as demonstrating compliance with the related clauses of the Building Code. Using them is not mandatory.


Acceptable Solutions and Verification Methods (AS and VMs) were called compliance documents. Some still have the “compliance document” title but the AS or VMs they contain are valid and unaffected by the name change.


These documents are provided to assist building consent authorities, building owners, designers and persons who carry out building work.

This information is published by the Ministry of Business, Innovation and Employment’s Chief Executive. It is a general guide only and, if used, does not relieve any person of the obligation to consider any matter to which the information relates according to the circumstances of the particular case. Expert advice may be required in specific circumstances. Where this information relates to assisting people: