The Victorian Planning Provisions and all planning schemes include the land use term ‘small second dwelling’.

The definition of a small second dwelling is included in Part 5 of the Building Regulations 2018.

Land Use Term




Small second dwelling

A building with a gross floor area of 60 square metres or less, on the same lot as an existing dwelling and used as a self-contained residence, which must include:

  • a kitchen sink;
  • food preparation facilities;
  • a bath or shower; and
  • a toilet and wash basin

Small second dwelling

A Class 1a building with a gross floor area that is equal to or less than 60m2 on the same allotment as an existing building that is a single dwelling.


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