Do I need building consent for a garage in NZ?
Short answer
A garage usually needs a building consent — Schedule 1 exempts only single-storey detached buildings up to 30 m² and certain carports up to 40 m² (with conditions). Most domestic garages are 30-50 m² or larger, putting them over the line. Attached garages are almost always consented because they're part of the house's structure and weathertight envelope.
Key facts
- Schedule 1 exempts single-storey detached buildings under 30 m²
- Conditions apply: not used for habitation, distance from boundary, etc.
- Carports up to 40 m² have separate exemption with conditions
- Attached garages — usually need consent
- Double garages over 30 m² — almost always need consent
The 30 m² exemption — and its conditions
Schedule 1 exempts a single-storey detached building (max 30 m² floor area) used for storage, hobbies, or similar non-habitation purpose, provided it's at least its own height from any boundary and from any other building, not used for sleeping, and not in a special area (heritage, hazard zone).
A 6m × 5m = 30 m² shed is right at the limit. 6m × 6m = 36 m² is over. Most double garages are 36-48 m² — over the limit.
Attached vs detached
An attached garage shares walls, structure, and often roof line with the house. That makes it part of the primary structure and weathertight envelope — Restricted Building Work — requiring LBP design + LBP carpentry + building consent.
If you want to avoid consent, the garage has to be physically detached. That includes the connection: a covered breezeway can sometimes keep it detached, but a full structural connection counts as attached.
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Related questions
Sources: Building Act 2004 Schedule 1; MBIE — Building work that doesn't need a consent. General information for NZ homeowners, not legal advice — building rules change and vary by council, so confirm critical details on the official source before acting. Last updated 2026-05.