Questions & Answers

What must be completed before construction can start?

Before construction of a dual occupancy can start, the required Development Approval (DA) must be in effect, any pre-construction conditions in the Notice of Decision must be satisfied, and the required Building Approval (BA) must be issued.

A licensed builder must also be appointed and obtain a building commencement notice from the building certifier. For residential building work, any required residential building insurance or fidelity cover must also be in place. Construction can start once the commencement notice has been issued.

Other approvals may also be required before particular works begin, such as approval for works on verges or other unleased Territory land.

Reference: Building Act 2004 – Division 3.4, Building Commencement Notices – https://www.legislation.act.gov.au/View/a/2004-11/current/html/2004-11.html &

Last reviewed: 14 September 2026 Information current as at: 15 September 2026

Short Answer

Before construction starts, you generally need an effective DA, satisfied pre-construction DA conditions, Building Approval, a licensed builder, required insurance and a building commencement notice. Any other site-specific approvals must also be obtained where applicable.

Detailed Explanation

Before building work commences, all applicable statutory approvals and pre-commencement requirements must be satisfied. This includes an effective DA where required, compliance with any conditions required to be satisfied before construction, an issued BA, appointment of the appropriately licensed builder, applicable residential building insurance/fidelity requirements, and issue of a building commencement notice.

Additional approvals or plans may be required where construction affects unleased Territory land, verges or public assets.

Key Point

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

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