New Zealand reviews residential building warranties as reforms loom

The New Zealand Institute of Building Surveyors released a comparative analysis of the country’s three principal residential building warranty products – the Master Build 10‑Year Guarantee, the Halo 10‑Year Residential Guarantee and the Stamford Insurance‑Backed 10‑Year Building Warranty. The report highlights differences in claim processes (two schemes require homeowners to notify the builder first, while one offers direct insurer access), the nature of the guarantee (industry‑funded vs. Lloyd’s‑backed insurance), defect definitions, payout caps, accommodation cover and deposit protection.

The government is preparing to amend the Building Act through the Building Amendment Bill, expected in early 2026. Changes will shift liability from joint‑and‑several to proportionate responsibility, require professional indemnity insurance for designers, and mandate home warranties for new residential buildings up to three storeys and for renovations costing $100,000 or more. The mandatory warranties will cover a one‑year defect period and a ten‑year structural guarantee. Officials note interest from Australian firms and underwriters in London and Paris in entering the New Zealand market, and the Minister of Building and Construction has said the government can temporarily suspend warranty or insurance requirements if adequate coverage is unavailable.