Retrospective Building Approvals WA

Work Completed Without Approval

Retrospective or unauthorised construction refers to building work carried out without the required Building Permit or Development Approval from the local authority.

Common Examples

This may include carports, garages, extensions, swimming pools, granny flats, internal alterations, commercial fit-outs, or changes of use completed without proper approval.

Compliance Assessment Required

To regularise the works, the building must be assessed against the National Construction Code (NCC) and relevant standards to determine whether it complies or requires rectification.

Retrospective Approval Process

Where required, a Certificate of Building Compliance (BA18) and supporting documentation may be necessary to satisfy local government requirements and address any Building Order or compliance notice.

Once the BA18 Certificate of Building Compliance has been issued by the appointed Building Surveyor Contractor, the property owner may lodge a BA13 Application for Building Approval Certificate with the local council to seek retrospective approval for the completed building work.

• Patio built without council approval

• Garage conversion to habitable room

• Granny flats without building permit

• Unauthorised extensions or additions

• Swimming pools and pool barriers

• Retaining walls and boundary structures

• Commercial fit-outs without approval

• Builder defects

• Owner-builder unauthorised works

Compliance Assessment

Review architectural drawings, engineering documentation, and supporting reports to assess compliance with the National Construction Code (NCC) and relevant Australian Standards.

Issuing Certificates

Assist with the preparation, coordination, and submission of documentation required for Certificate of Building Compliance (BA18), and associated building approval processes through the appointed Building Surveyor Contractor where required.

Inspections & Documentation Review

Conduct site inspections (where required) and maintain proper records to ensure the building work aligns with approved plans and regulatory requirements.