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Made in NZ · For NZ buildersThe NZ Building Code, in plain English
A free, plain-English reference to the rules NZ residential builders actually hit — NZS 3604, H1, E2 weathertightness, B1/B2, contracts and consents, materials, Healthy Homes and more. 115 topics, no login.
π Standards & Codes
NZS standards, NZBC Acceptable Solutions, Building Product Specifications, the 2025 code update
π Contracts & Compliance
NZS 3902 template, 9 implied warranties, Building Act, LBP rules, council fees
π Quality & Defects
MBIE Guide to Tolerances, defect process, critical lighting, viewing distances
π Build Sequence
Build phases site clear β CCC, inspection-by-inspection guide, paperwork at each stage
πͺ΅ Materials
Timber, plywood, claddings, roofing, concrete grades, steel, fixings, sealants β encyclopedia entries for what you order
π Structural
Span tables, lintels, foundations, bracing, connections, uplift fixings β load paths from ground to ridge
𧱠Linings & GIB
Plasterboard bracing (EzyBrace), fire-rated, wet area, intertenancy, ceiling diaphragm, finish levels
π§ Weathertightness
E2/AS1 cavity construction, building wraps, flashings, brick veneer, internal gutters, roof underlay
π₯ Fire & Acoustic
FRR ratings, STC, boundary walls within 1m, intertenancy walls
βοΈ Energy & H1
H1/AS1 6th edition, R-value targets, climate zones, glazing requirements
π Site Conditions
Wind zones, exposure (coastal), seismic, soil β drive fixings, framing, foundations
πΏ Trades
Plumbing (G12/G13), drainage, electrical zones, gas (G11), smoke alarms β what other trades need from you
π Healthy Homes
5 mandatory rental standards β heating, insulation, ventilation, moisture, draught
π¦Ί Health & Safety
HSWA duties, working at height, asbestos, scaffolding, notifiable work, site safety plans β keep the crew safe + compliant
π¬ BRANZ Research
Verified findings from BRANZ Build, Bulletins, Good Practice Guides, House Insulation Guide v2.7
π‘ Pro Tips & Facts
Filterable pro tips by job type Β· Quick reference 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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