Must comply with Schedule 1 of the General Regulation.

A retaining wall doesn't need BA if:

  • it isn't higher than 1.2m when measured from any point at the top of retaining wall to lowest adjacent ground level
  • it's up to 1.5m high when measured from any point at top of retaining wall to lowest adjacent ground level, and it:
    • complies with the exempt building code
    • complies with the building code and
    • is built in a proper and skilful way.
  • you don't need a licence, notice, certifier, plans, inspections, certificates, design or construction standards under the Building Act 2004. But if it's more than 1.2m high, design and construction standards will apply, and
  • it follows all other general rules.

Also see: retaining wall DA exemptions.