Relevant rules in the Regulation:

  • Schedule 1, Part 1.4, Division 1.4.2, Section 1.47.

Letterboxes and barbecues are class 10b structures. A letterbox or barbecue doesn't need DA approval if:

  • the plan area isn't more than 2m²
  • the structure isn't wider than 2m
  • the structure isn't more than 1.85m above datum ground level
  • the finished floor level isn't more than 0.4m above datum ground level (if it has a floor)
  • no part of it is between a front boundary and a building line for the block (if it isn’t a single letterbox)
  • it's no more than 0.4m above datum ground level for any part within 1.5m of a side boundary or rear boundary of the block, and
  • it meets the relevant general exemption criteria.

Extra criteria apply if you're building two exempt class 10 structures within 1.5m of a side or rear block boundary.

Also see: