Unconsented tiled shower? The 2025 %%rules changed%%.
In October 2025, MBIE quietly removed the restriction that blocked Schedule 1 exemption from applying to wet-area tiled showers. This flowchart shows the before-and-after — and the documentation a seller now needs to present at sale.
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Before and after October 2025.
The rule change affects any tiled shower work completed without building consent — including work done before the 2025 change. Here's the new path.
Was the tiled shower renovation done without building consent?
OLD RULES (pre-October 2025)
MBIE guidance blocked Exemption 12 for wet area showers
Certificate of Acceptance required
Certificate of Acceptance required
Certificate of Acceptance required
NEW RULES (post-October 2025)
MBIE removes the restriction from Schedule 1 guidance
Engage an LBP to confirm work falls within Schedule 1 exemption
Engage an LBP to confirm work falls within Schedule 1 exemption
Engage an LBP to confirm work falls within Schedule 1 exemption
Use this flowchart when…
You're looking at a LIM report, a building report, or an Auckland property listing and something doesn't add up. Run the flowchart. It'll tell you whether you need to push for documents, walk, or proceed.
You're selling a property with a tiled shower renovation and the buyer's lawyer raised the unconsented work issue.
You renovated a bathroom without consent and now want to sell.
You're a buyer reviewing an auction pack and see unconsented wet area work listed.
You're a mortgage adviser whose client is buying a home with a post-2020 bathroom renovation.
You're a licensed building practitioner asked to sign off under the new Schedule 1 approach.
Angus Grayson, LLB
The October 2025 rule change is one of the most consequential MBIE guidance shifts of recent years. It changes what sellers need to do, what buyers should accept, and what lawyers advise. This flowchart is the plain-English version.
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Before you download.
Does the rule change apply retrospectively to renovations done before October 2025?
Yes — the question is about the current Schedule 1 guidance, not when the work was done. Under the new rules, a pre-2025 unconsented tiled shower can now potentially qualify for the exemption with the right documentation.
Does this replace the need for a Code Compliance Certificate?
No — CCC is required when the work was done under a consent. This flowchart is specifically about work done without consent.
Who pays the LBP to confirm the exemption?
Usually the seller, as part of preparing the property for sale. Cost is a fraction of the old CoA process.
Is this settled law?
It's current MBIE guidance (as at October 2025). Guidance can change. This flowchart reflects the state of play as at the date of publication — check for updates before relying on it.