Must comply with Schedule 1 of the General Regulation.
External door, wall and window alterations don’t need BA if:
- it's for a class 1, class 2 or class 10 building only
- the building has a certificate of occupancy or other certificate under the Building Act 2004
- the largest horizontal opening span is 2m, and
- it follows all other general rules.
Also see: external doors and windows DA exemptions.