What is the Construction Contracts Act 2002?
Short answer
The Construction Contracts Act 2002 (CCA) is the law that regulates payments and dispute resolution on every construction contract in NZ. It introduced the payment claim / payment schedule regime and the adjudication remedy. The 2023 Retentions Amendment ring-fenced retention money in trust accounts. The CCA applies to your residential build whether or not you knew it — it's not contractually optional.
Key facts
- Applies to every construction contract in NZ
- Defines payment claims, payment schedules, response timelines
- Establishes adjudication as fast binding dispute resolution
- 2023 amendment introduced trust account regime for retentions
- Residential and commercial contracts both covered
What it gives homeowners
A clear timeline for responding to progress claims — usually 20 working days (or whatever the contract sets), or the claim becomes payable in full.
The right to a payment schedule that scopes down or rejects parts of the claim with reasons.
The right to refer a dispute to adjudication — fast (~28 working days), binding, no court required.
Protection for subbie retention money via the trust account regime (helps homeowners indirectly — if the head contractor fails, subbies are less likely to walk off chasing money).
What it requires homeowners to do
Respond to payment claims in writing within the contract timeline. Silence equals agreement.
Use the prescribed form / content for payment schedules. Casual emails sometimes don't count.
If you want to dispute, use the right mechanism — payment schedule for the specific claim, adjudication for the wider dispute.
Knowing the rules is half the job. The other half is knowing who you're hiring — check any NZ builder's court action, insolvency history, director track record and AI risk score in minutes.
Related questions
Sources: Construction Contracts Act 2002; Construction Contracts (Retention Money) Amendment Act 2023. General information for NZ homeowners, not legal advice — building rules change and vary by council, so confirm critical details on the official source before acting. Last updated 2026-05.