Mandatory Inspections in NSW
Mandatory inspections are the critical-stage site reviews required under NSW regulations. Your appointed Principal Certifier must personally conduct each inspection at set construction milestones to verify Building Code of Australia (BCA) compliance before work progresses.
When are inspections required?
At each mandated milestone specified in your Notice of Inspection schedule, as a legally binding condition of your Construction Certificate (CC) or CDC.
Excavation and steel reinforcement check before pouring concrete.
Conducted prior to pouring footings, piers, or slab trenches to verify ground depth, bearing capacity, and steel placement match approved engineering drawings.
Timber or steel framing inspection prior to internal lining.
Assessed before wall claddings or plasterboard are installed. Verifies bracing, tie-downs, load paths, lintels, and structural integrity against BCA standards.
Membrane validation prior to laying tiles in wet areas.
Carried out after the waterproof membrane is applied to bathrooms, ensuites, laundries, and balconies, ensuring full coverage before tiling commences.
Underground pipework and connection check before backfilling.
Inspected prior to covering drainage trenches to verify pipe gradients, detention pits, easements, and compliant disposal into approved council systems.
Comprehensive completion review before issuing an Occupation Certificate.
Final audit confirming the entire build matches approved plans, BCA safety requirements, fire compliance, smoke alarms, and all required trade certificates.
Ready to book your next critical stage inspection?
Book online with 24 to 48 hours notice. CertifiBuild inspects sites across Sydney, Central Coast, and Greater NSW.
How our inspection process works
From appointment to your Occupation Certificate, every stage keeps your residential or commercial project fully compliant with NSW building codes.
Appoint CertifiBuild for your next project
Submit your architectural plans, engineering certificates, and DA/CDC documentation for prompt assessment.
Fast turnaround across NSW councils
Book your critical stage inspection
Keep your build on schedule with fast, dependable on-site building compliance and mandatory stage sign-offs across NSW.
Prompt turnaround
Same-day or next-day inspection slots available to avoid site delays.
Fully accredited certifiers
Registered NSW private certifiers for Class 1 and Class 10 structures.