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Restricted building work

Restricted building work is design or construction work that is critical to the integrity of a building.

From 1 March 2012, only licensed building practitioners are allowed to carry out or supervise restricted building work. Therefore, a consent application that involves restricted building work will need to include the names of LBPs carrying out or supervising that work.

See section 45(1)(e) of the Building Act:

Section 45(1)(e) - Building Act 2004 - NZ Legislation website

The Government defines restricted building work as that which includes the design and construction of a house or small- to medium-sized apartment, and which covers:

  • primary structure (eg, foundations and framing) - to make sure the building can withstand vertical and horizontal loads
  • external envelope (eg, roofing and cladding) - to make sure the building is weather-tight
  • fire-safety systems (eg, sprinklers, fire alarms) - to make sure people are adequately protected from the dangers of smoke and fire.

Appropriately-licensed LBPs will be responsible for plans and specifications used in a consent application for restricted building work. See section 45(2)-(4) of the Building Act.

Section 45(2)-(4) - Building Act 2004 - NZ Legislation website

For homeowners who would like more information about licensed building practitioners, see:

Choosing the right people for your type of building work - Ministry of Business, Innovation & Employment website

For those in the building industry who would like more information about restricted building work, see:

Restricted building work - Ministry of Business, Innovation & Employment website 

Owner builder exemption

Owner-Builders are able to carry out Restricted Building Work on their own home.  To see if you qualify as an Owner-Builder and to learn more about the Owner-Builder Exemption visit Ministry of Business, Innovation & Employment website 

DIY work

It is possible in some circumstances to get an owner builder exemption for DIY work that is restricted building work. Applications need to include a statutory declaration from the owner which is avaliable from the www.building.govt.nz/projects-and-consents/planning-a-successful-build/scope-and-design/choosin-the-right-people-for-your-type-of-building-work/owner-builder-obligations/.

An Owner-Builder is responsible for ensuring that Restricted Building Work carried out under the Owner-Builder Exemption complies with the building consent and the relevant plans and specifications.  More information can be found on the Ministry of Business, Innovation & Employment website:

Owner-builder exemption - Homeowners - Ministry of Business, Innovation & Employment website