| Type of work |
Compliance required |
Entire building to comply? |
Building surveyor discretion? |
| Building renovation work including extensions less than (the lesser of) 1000m2 or 25% of existing floor area |
YES | NO* | YES |
| Building renovation work that represents more than 50% of the original volume of the building (including the re-erection of an existing dwelling) |
YES | YES | YES^ (discretion applies to compliance of both the alteration work and the remainder of the building) |
| Building renovation work that is an extension of floor area greater than (the lesser of) 25% of floor area of the existing building or 1000m2 |
YES | NO* | NO |
* Subject to the alteration not triggering the 50% rule
^ If the alteration includes an extension that exceeds the size described in the row below, the discretion only applies to the requirement to bring the remainder of the building into compliance.
