How long does the Lock-Up phase typically take on an Australian build?

Duration of the Lock-Up phase varies with weather, site conditions, trade availability and builder capacity. Your builder should be able to give you a realistic timeline in writing, along with the milestones that mark start and completion. If they can't, that's worth asking about before you sign.

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Construction Phases

Lock-Up

By George Giannakakis · B.Arch.Studies · M.Arch (UniSA) · RLA300580

Last reviewed: 1 March 2026 · How we research

Lock-Up explained in detail

The construction stage where your home is weather-tight with the roof complete, external walls up, and windows and external doors installed. The building can now be 'locked up' and is protected from weather. A key milestone for construction loan progress payments.

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32m 56s

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Related Terms

Frequently Asked Questions

Common questions about lock-up

The construction stage where your home is weather-tight with the roof complete, external walls up, and windows and external doors installed. Understanding the terminology upfront helps you compare builder quotes and read your Australian building contract with confidence.

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Adelaide Build Cost Report 2026

Per-sqm rates, site costs & ranges

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The complete Adelaide guide

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Provisional SumsWhat builders don't always tell you

EavesWhy they matter in Australian homes

Brick VeneerAustralia's most common construction

Practical CompletionWhat happens at handover

Build TimelinesHow long does it take to build?

Authoritative Sources

Verify against the binding rules in your state

BuildPilot is an independent Australian building platform, we publish guidance, we don't hold a building licence. Every Australian residential build must comply with the National Construction Code plus state-specific Acts and consumer-protection law. The authorities below are the primary sources of truth for the rules that actually apply to your project.

National

National Construction Code (NCC)

Australian Building Codes Board (ABCB)

The primary national set of technical building standards that every Australian build must comply with. Volume 2 covers Class 1 & 10 buildings (most homes).

Australian Standards (AS / AS-NZS)

Standards Australia

Specific material, product and method standards (e.g. AS 3700 masonry, AS 1684 timber framing) referenced by the NCC.

Housing Industry Association (HIA)

HIA

National peak body for residential builders. Publishes the most widely used home-building contracts and consumer guidance.

Master Builders Australia (MBA)

Master Builders Australia

National peak body for general builders. Publishes commercial and residential contracts and industry guidance.

By state & territory

South AustraliaSA

Consumer and Business Services (CBS)

VictoriaVIC

Victorian Building Authority (VBA)

New South WalesNSW

NSW Building Commission (within Department of Customer Service)

QueenslandQLD

Queensland Building and Construction Commission (QBCC)

Western AustraliaWA

Building and Energy (within Dept of Energy, Mines, Industry Regulation and Safety)

TasmaniaTAS

Consumer, Building and Occupational Services (CBOS)

Australian Capital TerritoryACT

Access Canberra (Construction Occupations Registrar)

Northern TerritoryNT

Building Practitioners Board / NT Worksafe (Building)

Links above open the public website of each authority. BuildPilot is not affiliated with these bodies and does not act on their behalf. Information on this page is general - check the current edition of the NCC and the relevant state Act for binding requirements.