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Setbacks from boundary

Common National Rules & UpdatesHeight-to-boundary rule: Under the Building Code, buildings must generally be set back from a boundary by at least their own height—unless local bylaws or consents say otherwiseQueenstown Lakes District Council.New changes (2025): The Government has removed minimum setback requirements for small single-storey structures under 10 m², and reduced the setback to 1 metre for structures between 10 m² and 30 m². These changes are expected to take effect later this year1News.Local District ExamplesHere are a few examples to show how setbacks vary: Whangārei DistrictSettlement – Residential Zone:Road boundary: 4.5 mOther boundaries: 3 m (one boundary may be as close as 1.5 m)Height-to-boundary: 3 m + 45° slope rules apply NelsonResidential zone:Road boundary: 1.5 m (including eaves)Side/rear boundary: 1.5 m if the total building length along that boundary exceeds 12 mDaylight admission (recession) rules may also apply Tasman District CouncilResidential zone:From road reserve: 4.5 mInternal boundary: typically 3 m, though one internal may be 1.5 mIf adjacent to rural zone: dwellings must be at least 25 m away South TaranakiResidential zone (outside intensification areas):From road: 4.5 mFrom other boundaries: 1.5 m What You Should Do NextCheck your District or City Council’s District Plan – zoning and setback specifics will be there.Consider recessional (height-to-boundary) rules – if your building is tall or near the boundary, these often apply. If you need to build closer than the permitted setback:You may apply for a "deemed permitted boundary activity" or similar exemption (e.g., Wellington, Christchurch, Masterton) — but it'll require your neighbour's written approval and there must be no other rule infringements Footprint Homes offers a $300 service to assess the rules for your zone and property, providing site-specific guidance after analysing your build area.

Setbacks from main dewelling

  • Examples from Selected Councils

  • 1. Waimakariri District

  • Allows a physically separated secondary dwelling within 30 metres of the main house. Measured between the nearest living areas.
  • Palmerston North City Council+13Waimakariri District Council+13Western Bay of Plenty District Council+13

  • 2. Whangārei District

  • Defines a Minor Residential Unit as being no more than 15 metres from the principal building—assuming permitted activity status.
  • wdc.govt.nz+2Bay Planning+2

  • 3. Selwyn District (Christchurch area)

  • Minor residential units must be located within 10 metres of the main dwelling.
  • Reddit+12selwyn.govt.nz+12Auckland Council+12

  • 4. Whakatāne District

  • Accessory habitational buildings require a minimum separation of 6 metres from the dwelling; maximum distance in rural zones is 20 metres.
  • Whakatāne District Council

  • 5. Western Bay of Plenty District

  • In rural, rural-residential, future urban, and lifestyle zones, minor dwellings must be within 20 metres of the main house—and share the same driveway.

  • In residential zones, there typically isn’t a distance requirement if you have sufficient land.
  • building.govt.nz+8Western Bay of Plenty District Council+8Auckland Council+8

  • 6. Hawke’s Bay Region (Hastings, Napier, Central Hawke’s Bay)

  • Some councils require the dwelling to be within approximately 25 metres of the main dwelling, depending on the zone.
  • Bay Planning+1

  • Key Takeaways

  • There’s no one-size-fits-all rule across NZ: permitted separation distances vary between councils—from as little as 6 m up to 30 m.

  • These distances usually refer to the nearest living area to nearest living area between buildings.

  • The allowable floor area for a minor or secondary dwelling typically ranges from 60 m² to 90 m², depending on the council and zone wdc.govt.nz.

  • What You Should Do Next

  • Identify the relevant council for your property (e.g., Tauranga City, Western Bay, etc.).
  • Check your local District Plan for rules on “minor residential unit,” “secondary dwelling,” or “accessory building.”
  • Look for criteria including:
  • Maximum floor area
  • Allowed separation distance from the main dwelling
  • Whether it must share access or services
  • If the project doesn’t comply, you may need to apply for Resource Consent or Building Consent, depending on the specifics.
  • Footprint Homes offers a $300 service to assess the rules for your zone and property, providing site-specific guidance after analysing your build area.