; What approvals do I need? - Ancillary Dwelling (granny flat) - City of Wanneroo
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What approvals do I need? - Ancillary Dwelling (granny flat)

Description Ancillary Dwelling (also commonly known as a Granny Flat) is a self-contained dwelling on the same lot as a single house which may be attached to, integrated with or detached from the single house
Do I need approval?

Planning Approval (also referred to as Development Approval) may be required for ancillary dwelling. Should it be required, planning approval must be obtained prior to a building permit being issued.

A Building Permit is always required for ancillary dwelling.

What do I need to submit?

Planning

Please refer to the City's DA Checklist – Residential Dwellings for a complete list of the information required to apply for planning approval.

Building

Please refer to the below application checklists (Certified or Uncertified) for a complete list of the information required to apply for a building permit:

  • Certified Residential Building Permit Application Checklist – This checklist is applicable when your proposed building has been assessed by a registered private building surveyor and they have issued a Certificate of Design Compliance (CDC) to state that the structure complies with applicable building standards; or
  • Uncertified Building Permit Application Checklist – This checklist is applicable when the plans and specifications of a proposed building have not been assessed by a registered private building surveyor and the drawings and documents submitted with your permit application will require assessment by the City’s building surveyors. 

If your structure has already been constructed without prior approvals and/or permits, please refer to our Unauthorised Works page which includes a separate application checklist.

Fees & Lodgement

Fees:

Please refer to the below page for further information regarding application fees.

Planning and Building Application Fees

Lodgement:

The City's preferred method for submitting Planning and Building applications is online. Please refer to the below links to lodge an application.

Online Planning Forms

Online Building Forms

Do not hesitate to contact the City on 9405 5000 if you have any queries prior to lodgement.