Inspection stages (NSW owner-builder)
What inspections are, when they happen, and how to avoid the delays that catch most owner-builders.
Inspections are about evidence and timing — not just workmanship.
What inspection stages actually are
Inspection stages are mandatory checkpoints set by your certifier to confirm that work matches the approved construction documents and required standards.
Once work is covered up, the opportunity to inspect it is usually gone.
Typical inspection stages (example)
- Footings / foundations (before concrete pour)
- Slab or subfloor
- Framing (before linings)
- Waterproofing (wet areas)
- Fire / acoustic measures (where required)
- Final inspection
Owner-builder responsibility
As an owner-builder, you are responsible for:
- Knowing which inspection stages apply
- Booking inspections at the correct time
- Ensuring work is ready to be inspected
- Stopping work if an inspection has not occurred
Common inspection mistakes
Evidence inspectors commonly rely on
- Approved construction drawings and conditions
- Trade compliance certificates (electrical, plumbing, waterproofing)
- Engineering certificates or inspection reports
- Photos taken before work is covered
Where inspections fit in the NSW process
Inspection stages sit across the middle of the project, starting once work begins and finishing before completion certification.
Missing inspections is one of the most common reasons final approvals are delayed.