What is a Granny flat?
A dwelling is classed as a granny flat if it is self-contained – meaning you can live independently in this dwelling, as it has all the facilities required for living (bedroom, kitchen, bathroom, and laundry) – and is situated on a property with a main house (primary dwelling).
Important things to know
There are things to consider when building a granny flat
- Is the land compliant with State Government Requirements for granny flat approval?
- Which form of approval should be used Complying Development (approval through a Private Certifier) or DA (Development Application through local council)?
- Additional Costs & Process (due to the nature of the land and or land conditions) As you work through all the topics above, you will gain an understanding of all the aspects that affect granny flat approval and buildability.
Private Open Space
24m2 of private open space must be provided. It must be at least 4m wide and directly accessible from and adjacent to a habitable room other than a bedroom.
Trees
Setbacks from ‘protected’ trees must be at least 3m. If tree removal is required, a separate tree removal permit may be required. Please check with your local council.
Size & Height
• A granny flat may not be larger than 60m² measured from external walls
• It can be 1,2 or 3 bedroom
• The maximum height is 8.5m but a special formula us used if the height exceeds 3.8m at setback points
• If a granny flat wall is built within 1.8m of an existing dwelling, the wall must be fire rated
Stormwater
Site drainage must comply with your council’s stormwater policies