In this section

Owners of commercial, industrial or communal (public use) buildings must ensure the ongoing compliance of their building. They have a responsibility to ensure that their building is safe for people to enter, occupy or work in. You can find information here to help you understand your obligations, the steps to take to meet them and useful tools to help you do this.

Flowchart - see link below for text version
(Read textual description of process)

Please contact the Building Department to discuss your individual situation: bca@selwyn.govt.nz