Relevant rules in the Regulation:

  • Schedule 1, Part 1.4, Division 1.4.1, Section 1.20.

Internal alterations to a building may include:

  • internal repairs, renovations or upgrades
  • new kitchen fitouts
  • shop or office fitouts, and
  • removing internal walls.

An internal alteration does not need DA approval if:

  • its building class doesn’t change under the building code
  • there's no increase in gross floor area (for a non-residential building), and
  • it complies with relevant general exemption criteria.

A non-residential building is one that isn't used for residential purposes and not a class 10 building associated with a building used for residential purposes. For example, a private garage associated with a home is a residential building.

Also see: internal alteration BA exemptions.