Principal Certifier vs Independent Building Inspector: What Is the Difference?
The terms “Principal Certifier” and “building inspector” are sometimes used interchangeably, but they do not necessarily describe the same service.
Understanding the difference can help property owners set realistic expectations and decide whether they require additional inspections during their building project.
What Does a Principal Certifier Do?
A Principal Certifier is appointed for approved building work and performs a statutory certification role.
Registered certifiers are independent regulators and public officials. They must act in the public interest and can only issue development certificates when the relevant legislative requirements have been met.
During construction, the Principal Certifier may:
- Carry out required critical stage inspections
- Review documentation and compliance certificates
- Assess work against the relevant approval
- Identify non-compliant building work
- Issue written directions where required
- Complete the final inspection
- Determine whether an Occupation Certificate can be issued
The Principal Certifier does not work for the builder or developer.
What a Principal Certifier Does Not Do
A Principal Certifier is not the builder’s project manager or site supervisor.
The builder remains responsible for completing the work in accordance with the approved plans and managing subcontractors. The applicant is responsible for satisfying the conditions of the development consent.
Certification inspections are also not intended to provide a complete guarantee covering every aspect of workmanship, materials, fixtures or finishes. NSW guidance specifically distinguishes the certifier’s role in assessing suitability for occupation from guaranteeing the quality of fittings and finishes.
What Does an Independent Building Inspector Do?
An independent building consultant or inspector may be engaged separately to examine the quality or condition of building work.
The exact service depends on the agreed inspection scope, but it may involve identifying visible defects, incomplete work, workmanship concerns or items that differ from the building contract.
For completed properties, a building inspection report generally describes the property’s condition and identifies significant visible problems such as cracking, damp, safety concerns or roof defects. It is not a certificate of legal compliance and does not replace the statutory certification process.
Do You Need Both?
Some owners may choose to use both services because they perform different functions.
The Principal Certifier completes the required statutory certification work. An independently engaged inspector may provide additional reporting about workmanship or defects within the agreed scope.
Hiring an independent inspector does not remove the need to appoint a Principal Certifier where one is legally required. Likewise, appointing a Principal Certifier does not mean every cosmetic defect or contractual workmanship issue will be assessed during certification inspections.
Who Is Responsible for Building Quality?
The builder is responsible for completing the work in accordance with the contract, approved documentation and applicable requirements.
Concerns about defective, incomplete or poor-quality residential building work should generally be raised directly with the builder first and confirmed in writing. Building Commission NSW can assist with eligible building disputes when the parties cannot resolve the issue.
Need a Principal Certifier?
Certiscope provides professional building-certification and consultancy services for residential and commercial projects.
Contact Certiscope to discuss the approvals, inspections and certification services required for your development.