Short answer: there is no national answer, and the number most people quote measures the wrong thing. Some states cap how long the assessor may take — South Australia allows 20 business days for a Class 1 or 10 building consent and 60 for Class 2 to 9; Victoria 10 and 15; Western Australia 10 certified and 25 uncertified. New South Wales and Queensland prescribe no deadline at the certificate stage. None measures how long your approval takes, because the clock starts on a complete application and pauses for information requests and referrals.
Key Takeaways
- Three clocks run, only one statutory. The assessment period binds the decision-maker; elapsed time is what your programme feels.
- The clock starts later than most applicants assume. Victoria measures from the "relevant day", when all reporting-authority reports and consents are in or due.
- Business days, not calendar days. South Australia's 60-business-day Class 2 to 9 period is roughly twelve weeks before any pause.
- Pauses are lawful, not failures. A comfortable clock reading alongside accruing holding costs is normal.
- Two of the five states covered publish no certificate deadline. There, completeness is the lever.
Three Clocks, and Only One of Them Is Statutory
The question hides three measurements, which is why the internet disagrees.
The statutory assessment period binds the decision-maker: the surveyor, certifier or permit authority must decide within a stated number of business days. It is a ceiling, enforceable through a deemed refusal in some jurisdictions, and says nothing about how long the file sat idle.
Elapsed time is the calendar distance from "we have drawings" to "we hold a permit" — documentation, engineering, planning conditions, referrals, information requests, assessor queues and your own response time. No Act governs it.
Your programme has a construction start, a finance facility accruing and trades booked; the permit sits on its critical path.
One rule bridges all three: the statutory clock starts on a complete application, not the day you first sent something. For what "complete" means, see the building permit application guide.
Where the Statutory Period Actually Comes From
Each row records what the instrument prescribes, read on 23 October 2026. Every period is a maximum for the decision-maker, in the unit the instrument uses.
| Jurisdiction | Statutory position | Days | Unit | Instrument |
|---|---|---|---|---|
| South Australia | Building consent, Class 1 or 10 / Class 2 to 9 | 20 / 60 (+10 if referred to SCAP) | Business days | PDI Act 2016; PlanSA Stages and timeframes |
| Victoria | Building permit, Class 1 or 10 / other classes | 10 / 15 | Business days | Building Regulations 2018 reg 35 |
| Western Australia | Building permit, certified / uncertified | 10 / 25 | Business days | Building Regulations 2012 reg 20 |
| New South Wales | Construction certificate | No assessment deadline | — | EP&A (Development Certification and Fire Safety) Regulation 2021, Pt 3 |
| New South Wales | Complying development certificate | 10 (20 where reg 134 applies) | Calendar days | EP&A Regulation 2021 reg 133 |
| Queensland | Building development approval | 35 from end of last stage | Days | Development Assessment Rules v3.0, commenced 18 July 2025 |
Do not average this table; a mean across different scopes, triggers and units describes nothing.
How to Read the Periods: Four Footnotes That Change the Answer
South Australia adds a fixed shell. PlanSA states that all assessment types carry a five business day verification period at the start and two business days at the end. Those sit outside the 20 or 60, so a Class 1 consent is 27 business days before any suspension. The South Australia building consent pathway covers who assesses it.
Victoria's period does not start at lodgement. Regulation 35 measures from the "relevant day": the earlier of the day all reporting-authority reports and consents arrive, or the day they were due (reg 35(2)). If one is missing, reg 33 allows three months (Class 1 or 10) or six months (other classes) to supply it, and no decision period runs meanwhile. The building permit in Victoria page covers the reporting authorities.
Western Australia excludes the planning wait in the regulation itself. Regulation 20(1)(a)(i) prescribes 25 business days for an uncertified application, excluding any day after a development application is made and before it is determined.
Two states prescribe no construction-certificate deadline. New South Wales sets a deemed refusal period for appeal: 28 days after the certificate application, or the end of the development application's own deemed refusal period where the certificate was sought before the DA was determined (reg 119). That creates appeal rights, not an obligation to decide. A complying development certificate is the exception, at 10 days.
Queensland assesses building approval through the Planning Act 2016 process, where the DA Rules give the assessment manager 35 days from the end of the last relevant stage. The guidance calls those business days; the Rules say only "days".
What Pauses the Assessment Clock
A period can be short on paper and long in practice without anyone breaching it, because pauses are built in.
Information requests. The largest and most common. PlanSA's portal documentation describes the clock pausing while a request is active, and its release notes confirm it stays paused when a request expires unanswered. New South Wales lets a certifier require further information. In Victoria the relevant day arrives only once reports are in.
Referrals. A referral is a decision the assessor needs, not a delay it caused. Victoria gives reporting authorities 10 business days, or 15 for chief officer matters. South Australia adds 10 business days for a SCAP referral.
Incomplete documentation. A missing certificate, unresolved structural detail, or energy report not yet issued — each can mean the application is not properly made. In Queensland an action notice gives the applicant 20 days to comply before the application is treated as never made.
Your own response time. This pause has your name on it and is the only one you can compress unilaterally. For the arithmetic, see what a permit delay costs.
Deemed refusal is not a rescue. Exceed the period in Victoria and s 19(3) deems the permit refused: an appeal right, not a permit.
Why Elapsed Time Outruns the Act
Four things push real calendars past the statutory ceiling without anyone breaching a rule.
Capacity is unpublished. No regulator reviewed publishes queue-time data for private certifiers or council surveyors. Any "typical wait" in marketing copy is unsourced unless it names a dataset.
Documentation quality compounds. An application assessed once, cleanly, costs one period. One returning for a revised footing design and re-issued energy report costs three.
Digital infrastructure sits in the critical path. New South Wales lodges certificates through the Planning Portal; when it is unavailable, nothing can be lodged or issued, whatever the regulation says.
Prior approvals gate the permit. In Queensland, s 34A of the Building Act 1975 applies subject to s 83 and the Planning Act, so building approval sits downstream of planning. In Victoria, a planning permit must issue first.
How to Read a Permit Timeline Before You Lodge
Build the timeline backwards from construction start:
- Documentation lock — every report, certificate and design decision, signed.
- Lodgement, then the verification period that precedes assessment.
- Assessment, in the business days the instrument allows.
- An information request. Assume one; most files get one.
- Conditions to satisfy, then issue.
Add a response allowance to step 4; a fortnight is a planning assumption, not a prediction.
Ask the assessor two questions before appointing them. What is the current queue, complete file to decision? And if plans change after lodgement, what happens to the fee and clock?
Use staged permits deliberately. Staging means more applications and assessment periods, but it can bring early works — demolition, site preparation, footings — forward. It overlaps approval with construction without shortening total approval time.
Check status instead of chasing. Most jurisdictions publish the decision, conditions and certificate on a register or portal. The permit search methods by state explain where to look.
For a South Australian project, Cyberate PM's approval timeline assessment works the timeline against a specific consent sequence. Cyberate Project Management (CPM) is part of DDDI Group, which publishes this article. Links to CPM are related-party referrals, not independent recommendations. CPM provides development approval and subdivision management in South Australia only; approval rules, fees and services differ in other states. CPM is not a certifier, building surveyor, consent authority or permit issuer.
When the Wait Is a Planning Wait, Not a Permit Wait
Many "my building permit is taking forever" complaints are planning complaints wearing the wrong label. The two consents are separate decisions on separate clocks.
The planning clocks — pathway-specific business-day periods, the verification and issue wrapper, the one permitted information suspension — are set out in SA development approval timeframes. New South Wales sets council DA targets that say nothing about construction certificates; Queensland's rules govern the whole application, which is why its 35-day figure is a DA figure.
Frequently Asked Questions
How long does a building permit take in Australia?
South Australia allows 20 business days for a Class 1 or 10 building consent and 60 for Class 2 to 9, plus 10 if referred to SCAP. Victoria allows 10 business days for a Class 1 or 10 building and 15 for other classes. Western Australia allows 10 certified and 25 uncertified. New South Wales and Queensland prescribe no certificate-stage deadline.
Why is my building permit taking longer than the statutory time?
Usually because the statutory clock is not running. In Victoria the period starts only on the relevant day, once reporting-authority reports and consents are received or due. Elsewhere an information request or unresolved referral suspends assessment while calendar time passes.
How long does a building permit last once it is issued?
Validity is separate from assessment time and is set by the Act and the permit. Victoria requires commencement within 12 months of issue and completion within 24 months for houses and outbuildings, or 36 months for most other work. Do not rely on a universal "seven-year rule" — that figure belongs to a New South Wales building information certificate.
What does "building permit application status" mean when nothing is happening?
Usually one of three things: the file is queued, an information request is outstanding and the clock paused, or a referral response has not arrived. The portal record shows which. Exceeding a deemed refusal period gives an appeal right, not an approval.
Can I start building before the permit is issued?
No. A building permit authorises the work, and work done before it issues is unapproved. Some jurisdictions allow staged permits so early works proceed under their own approval.
The measurement frame
Ask which instrument a number comes from, whether it is business or calendar days, and what starts the clock. Hold it as a ceiling, add an allowance for one information request and any referral, and treat your response time as a line you control.
To work the sequence through for a South Australian project, book a 30-minute consultation on the approval research. Cyberate Project Management (CPM) is part of DDDI Group, which publishes this article. Links to CPM are related-party referrals, not independent recommendations. CPM provides development approval and subdivision management in South Australia only; approval rules, fees and services differ in other states.