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Approvals

10 Things That Slow Down a Building Approval

Apex Adam·16 Jul 2026·2 min read

Most building approvals don’t get held up by the certifier — they get held up by small, avoidable gaps in the paperwork. After years of assessing files, the same culprits come up again and again. Here are the ten most common, and how to sidestep each one so your project keeps moving.

1. Missing Form 15 design certificates

Each consultant on your project — engineer, energy assessor and others — provides a Form 15 certifying their part of the design. A single missing one can hold up the whole file.

Fix: Ask each consultant to supply their Form 15 with their drawings, not after.

2. A soil test that doesn’t match the footing design

If the engineer’s footings are designed for one soil classification but the soil test says another, the file stalls until they reconcile.

Fix: Make sure the soil test is done before the footings are finalised, not after.

3. A site plan missing key detail

Setbacks, sewer lines, easements and overlays all need to be shown. A site plan without them can’t be assessed.

Fix: Confirm your designer has included all four before it’s lodged.

4. An expired builder’s QBCC licence

This one catches people out more often than you’d expect. If your builder’s licence has lapsed, the approval can’t proceed.

Fix: Check the licence is current before work is contracted.

5. Unpaid Home Warranty Insurance

A building approval can’t be issued until the Home Warranty Insurance premium is paid.

Fix: Make sure your builder has paid it early, not at the last minute.

6. Development Approval conditions not addressed

If your project needed a council planning approval, its conditions have to be carried through into the building submission. Miss them and the file bounces back.

Fix: Give your certifier the DA and all its conditions up front.

7. Drawings that are unsigned, undated or unnumbered

Plans without a signature, date or revision number can’t be relied on for assessment.

Fix: Insist every drawing set is properly signed and version-controlled.

8. Missing pool fencing details

For any project with a pool, fencing and barrier details are mandatory. Leaving them out is a guaranteed delay.

Fix: Include pool safety details in the original submission.

9. An energy report that doesn’t match the windows

If the energy assessment was done on an earlier design and the windows have since changed, the numbers no longer hold.

Fix: Make sure the energy report reflects the final window schedule.

10. Late design changes

The classic. A “minor” change after approval often isn’t minor at all — it can require an amended approval, resetting part of the process.

Fix: Lock in the design before you lodge, and talk to your certifier before making any change.

Avoiding building approval delays

Almost every item on this list comes down to one thing: a complete, consistent file lodged the first time. Getting your certifier involved early is the best insurance against all ten, because they’ll flag the gaps before they become weeks of delay.

At Apex Approvals, we’d rather chase one missing document than restart a file. Send us what you’ve got and we’ll tell you exactly what’s missing before it costs you time.

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