What should I check when buying a house that might leak?

Common question · Leaky Buildings & Weathertightness · New Zealand · 23 October 2026

General information from Lawmateanz

Before buying a home in New Zealand, especially one with monolithic cladding built in the 1990s or 2000s, get a pre-purchase inspection from a qualified building surveyor, including invasive moisture testing if there are risk factors.

Check the council's records through a Land Information Memorandum (LIM), including whether a code compliance certificate was issued for building work.

Ask whether there's been a weathertightness claim or repair, and get copies of any reports.

Make your agreement conditional on a satisfactory building report and LIM, and have a property lawyer review it before you sign.

Written by Lawmateanz, not by a lawyer. General information only, not legal advice about your situation. For advice about your own matter, talk to a lawyer.

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