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NZ Building Code guide

🏠 Healthy Homes — the plain-English guide

5 mandatory rental standards — heating, insulation, ventilation, moisture, draught. Free, plain-English NZ Building Code reference for builders — 7 topics.

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Healthy Homes OverviewHealthy Homes Standards 2019 — mandatory minimum standards for ALL rental properties. Full compliance required for…
HHS Assessor WalkthroughFrom 1 July 2025, ALL rental properties must comply with the Healthy Homes Standards 2019. Landlords / property…
1. Heating StandardHealthy Homes Standard 1 — Heating. The rental must have one or more fixed heaters that directly heat the main living…
2. Insulation StandardHealthy Homes Standard 2 — Insulation. Ceiling and underfloor insulation is required wherever it can reasonably be…
3. Ventilation StandardHealthy Homes Standard 3 — Ventilation. Two parts: every habitable room needs windows/doors/skylights that open to…
4. Moisture & DrainageHealthy Homes Standard 4 — Moisture ingress & drainage. The property must have efficient drainage for surface water,…
5. Draught StoppingHealthy Homes Standard 5 — Draught stopping. The landlord must block any unreasonable gaps or holes in walls,…

More of the NZ Building Code guide: Standards & Codes · Contracts & Compliance · Quality & Defects · Build Sequence · Materials · Structural · Linings & GIB · Weathertightness · Fire & Acoustic · Energy & H1 · Site Conditions · Trades · Health & Safety · BRANZ Research · Pro Tips & Facts

Plain-English guide, not advice. This page helps you understand and navigate the rules — it is general information, not design, engineering or consent advice, and it does not reproduce the copyrighted tables of NZS 3604 or any Standard. Always check the current Standard or Acceptable Solution and your BCA, and use a suitably qualified LBP, engineer or QS where it matters.

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