Questions & Answers

What approvals are required before either dwelling can be occupied?

Before either dwelling in a dual occupancy can be occupied, it must be covered by a Certificate of Occupancy and Use for its intended residential use. For building work requiring a certifier, the certifier must first issue the required Certificate of Completion. ACT Planning also notes that completion includes relevant electrical, gasfitting and plumbing work.

It is unlawful to occupy or use a building, or part of a building, without the required Certificate of Occupancy and Use.

Reference: Act Planning: Completion Certificates – https://www.planning.act.gov.au/community/build-or-renovate/upon-completion/completion-certificates

 

Last reviewed: 27 August 2026 Information current as at: 1 September 2026

Short Answer

Each dwelling must be covered by a Certificate of Occupancy and Use before it is occupied. A Certificate of Completion from the building certifier is also required beforehand where the work required certification.

Detailed Explanation

Before occupation, the relevant dwelling or part of the building must have a valid Certificate of Occupancy and Use authorising its intended use. Where the building work required certification, a Certificate of Completion from the building certifier is required before the occupancy certificate can be issued.

Key Point

No minimum block size does not remove the need for planning assessment.

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