The Residential Design Codes (R-Codes) define an outbuilding as: ‘An enclosed non-habitable structure that is detached from any dwelling.’
This definition includes sheds and garages that are not attached to the main dwelling.
An outbuilding may require a development (planning) approval and a building permit prior to being constructed.
On a residential lot, an outbuilding will require development (planning) approval where it is not specifically exempt from requiring approval, or it does not meet the requirements of the R-Codes, the City’s Residential Development Local Planning Policy, Development in Housing Opportunity Areas Local Planning Policy or structure plan (if applicable).
Development approval for an outbuilding to a single house or grouped dwelling is not required when:
- The size is less than 10m² and abuts no more than two boundaries (excluding street boundaries);
- It is not located within the street setback area;
- The wall height does not exceed 2.4 metres;
- The ridge height does not exceed 4.2 metres;
- Does not reduce the amount of open space required; and
- The area of all outbuildings does not exceed 60m² or 10% of the total site area; and
- All other requirements of the R-Codes and/or the Residential Development Local Planning Policy/Development in Housing Opportunity Areas Local Planning Policy are met.
Generally, outbuildings on a residential lot will require development approval if they are:
- Located within the street setback area;
- Visible from the street and not of a material or finish that matches the main dwelling;
- Set back less than 1 metre (outbuilding length is less than 9 metres) or 1.5 metres (outbuilding length is greater than 9 metres) to a side boundary if the outbuilding is greater than 10m²;
- The area of all outbuildings is greater than 60m² or 10% of the total site area; or
- The wall height is greater than 2.4 metres and ridge height is greater than 4.2 metres from natural ground level.
Should your dwelling be located within a structure plan area, additional requirements may apply.
Outbuildings to multiple dwellings and commercial buildings will require development approval.
Fees are in accordance with the Planning Services fees and charges.
Building Permit requirements
An outbuilding less than 10m² and less than 2.4 metres high does not require a building permit.
Building permit application forms (certified or uncertified) are available from the Department of Mines, Industry Regulation and Safety website. Certified building permit applications must be accompanied with a Certificate of Design Compliance.
Please refer to the City’s Uncertified Building Application Checklist – Outbuilding (Class 10a) for information required to be provided with the Building Permit Application (BA2 form).
Fees are in accordance with the Building Services fees and charges.