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Granny flat guides for New Zealand
What to know before you order a granny flat in New Zealand: the building and planning rules, what it costs in Auckland, and what to check on an expandable unit built overseas. Each guide links to the official sources.
- Granny flat rules in New Zealand (2026): the 70 m² exemptionThe conditions of the exemption, the PIM, who designs and builds, the Building Code rules that still apply, and importing a factory-built unit.
- Prefab granny flat in NZ: cost and the rules to checkWhat prefab means under the exemption and the PIM rule, turnkey cost in Auckland, what to check before you order.
- Single House Zone in Auckland: what you can buildWhat the zone allows, how it works with the 70 m² exemption, minor dwellings, subdivision and how to check your zone.
- Granny flat cost in Auckland: what a turnkey price includesEach line of the total: the unit, GST at the border, the PIM fee, development contributions, Watercare's growth charge and the site works.
- Expandable granny flats in New Zealand: what the rules requireThe framing rule, the PIM before any factory work, H1 insulation, weathertightness, wiring done overseas, asbestos and biosecurity.
- Minor dwellings in Auckland (2026): the planning and building rulesThe national standard for detached minor units, what the Unitary Plan still controls, and its zone rules for minor dwellings.
Our units: the Yard 37, two bedrooms in 35.2 m² inside the walls, and the Yard 57, two bedrooms and a separate living room in about 54.3 m², both under the 70 m² limit of the granny flat exemption.