A Certificate of Acceptance can help with certain building work already completed without the required consent. ArchSolutioNZ helps homeowners understand the likely pathway, prepare as-built documentation and coordinate the evidence council may need.
Bottom line
Start by choosing the right pathway. Council can only assess completed work that can reasonably be verified. Hidden elements may need opening up, specialist reports, remedial work or may be excluded from the Certificate of Acceptance.
Choose the right pathway
Each pathway below goes deeper into a specific situation. Use the free check if you are still unsure what applies.
Best for
Owners with alterations, additions, decks, sleepouts, bathrooms or converted spaces already built without the right approval.
Understand whether a Certificate of Acceptance may be possible, what evidence may be needed, and where council may need specialist verification.
Open next stepBest for
Auckland homeowners dealing with property file gaps, LIM issues, unconsented work or council evidence expectations.
Clarify the likely CoA pathway, evidence gaps and consultant inputs before lodging with Auckland Council or responding under sale pressure.
Open next stepBest for
Owners who already know they need a CoA and want help assembling drawings, reports, forms, photos and supporting evidence.
Prepare a clear package that explains what work is covered, what can be verified, what evidence supports it and what consultants may need to confirm.
Open next stepBest for
Completed work with missing, incomplete or poor records where council needs drawings that show what is actually built.
Create architectural base drawings for unconsented rooms, decks, additions, conversions and property-sale issues where records are thin.
Open next stepBest for
People searching for retrospective building consent who need to know whether the real pathway is a CoA, building consent or another route.
Separate proposed work from completed work, and avoid spending on the wrong approval pathway before the issue is properly understood.
Open next stepBest for
Homeowners confused between a Code Compliance Certificate, a Certificate of Acceptance and a standard building consent.
If your issue is an old consent with no final sign-off, failed inspection or missing producer statement, Council Support may be the better path.
Open next stepBest for
Owners, buyers and agents dealing with LIM issues, due diligence questions, settlement pressure or sale objections.
Identify what the issue appears to be, what evidence exists, and what technical pathway may reduce uncertainty before decisions become urgent.
Open next stepBest for
Garage conversions, sleepouts, decks, bathrooms, drainage, second dwellings, house splitting and structural changes.
See why different project types create different CoA evidence needs around structure, moisture, fire safety, drainage, services and use.
Open next stepBest for
Anyone unsure whether completed work is likely to fit a Certificate of Acceptance pathway.
Use the free CoA feasibility check before paying for reports, as-built drawings or the wrong council process.
Open next stepConnected resources
The service pages help you choose a support pathway. The guide, tool and related services help when you need education, triage or a different council process.
Our CoA process
We review photos, property file information, LIM notes, owner details, drawings, invoices or council correspondence.
We identify whether the issue is likely to be CoA, building consent, CCC support, planning advice, remedial work or another council process.
We identify what as-built drawings, photos, reports, inspections or specialist evidence may be needed.
We prepare architectural documents and coordinate engineering, drainage, fire, waterproofing or other specialist inputs where relevant.
The CoA package is organised so council can understand what is being applied for and what evidence supports it.
If council requests clarification on the documents we prepared, we help update the relevant information and coordinate responses.
Why ArchSolutioNZ
We help avoid spending on the wrong approval pathway, prepare architectural information that reflects what is actually built, and coordinate specialist input where the scope requires it.
CoA FAQs
A Certificate of Acceptance is a council pathway for certain building work that has already been completed without the required building consent. It is not the same as a normal building consent or a Code Compliance Certificate.
No. Council can only assess what can reasonably be verified after the work is complete. Some work may need opening up, specialist reports, remedial work, planning advice or another pathway.
People often use the phrase retrospective building consent, but in New Zealand the pathway for completed work without consent is often a Certificate of Acceptance. The correct route depends on what was built, when, and whether any consent already exists.
That may belong under Council Support rather than a standard CoA pathway. The issue may involve final inspections, old consent records, missing producer statements, remedial work or Code Compliance Certificate strategy.
Official references
These official resources help explain why CoA evidence, scope and verification limits matter.
Start with a pathway check. Send the work description, photos, property file notes or council correspondence and we will help identify the sensible next step.
