Certificate of Acceptance (COA) Assistance

 Building work done without consent, missing documentation, or historic alterations can feel like a dead end but a Certificate of Acceptance (COA) often provides a way forward.

C3 Building Compliance helps homeowners, builders, designers, and councils navigate the COA process. Whether the work is unconsented construction, historic alterations, or an issue that's surfaced during a property sale, we identify what evidence is needed and support the application through to a compliant outcome.

We understand both the technical requirements and the real-world constraints of COAs — limited records, work that's already closed up, uncertain history — and give clear, robust advice throughout.

• COA guidance and technical review — identifying what information is needed to support an application

• Onsite verification — assessing completed building work where evidence is limited

• Building Code compliance assessment — reviewing available evidence and finding a pathway to compliance

• Council and documentation support — technical reporting and managing council requirements