A building consent is the formal approval issued by a building consent authority (BCA) that certain works meet the requirements of the New Zealand Building Act, Building Regulations and Building Code.

You can not undertake any building work that requires a building consent without this approval. Most building work requires a building consent but some minor work is exempt under the Act.

Exempt work is listed in Schedule 1 of the Building Act 2004. See also What is an exemption?