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About building consents

If you are constructing, altering, demolishing or removing a building you probably need a building consent.

What is a building consent?

A building consent is the authorisation for you to start building work. It is official consent from a Building Consent Authority (BCA), to undertake building work.

The BCA is required to grant a building consent where the BCA is "satisfied on reasonable grounds" that the work, if properly completed in accordance with the plans and specifications, and other supporting information, will comply with the Building Code. Satisfied on reasonable grounds means having enough evidence or justification to believe something to be true or valid. It implies a level of confidence based on sound reasoning or facts, rather than on speculation or assumption.

As well as a building consent, you may require approvals under other legislation such as the Resource Management Act 1991, local bylaws, or approval from Fire and Emergency New Zealand or Heritage New Zealand. For some activities you may also need a resource consent (we will let you know if you need a resource consent when we’ve assessed your building consent application).

Last updated 6 May 2026, 09:53 am

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