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What You Need to Know About the New 70sqm Granny Flat Rules in NZ

  • No building consent needed for standalone homes up to 70sqm
  • Applies to single-storey, detached dwellings only
  • Building work is carried out by authorised building professionals
  • Still subject to local planning and zoning rules (may require resource consent)
  • Work must comply with the NZ Building Code
  • New rules take effect by early 2026

Good news for Kiwi homeowners looking to maximise their property’s potential, new rules are about to make it easier than ever to build a standalone granny flat up to 70 square metres without needing a building consent. Whether you’re planning to support extended family, add rental income, or increase the flexibility of your home, this regulatory change will open up exciting opportunities.

 

At Villaworx Construction, we’re here to break down the changes, explain how they work, and help you plan your build with confidence.

What’s Changed with Granny Flat Rules NZ?

The proposed changes to granny flat rules is that building consent will no longer be required for standalone dwellings up to 70 square metres, provided certain conditions are met. This includes self-contained granny flats used as permanent homes.

This change comes as part of the Government’s efforts to increase housing supply and streamline the construction process, as detailed in an announcement from www.beehive.govt.nz.

Key Details of the 70sqm Granny Flat Regulations NZ

  • Size Limit: The building must be no more than 70 square metres (including all floors).
  • Standalone Only: It must be detached from other dwellings.
  • Single Storey: The structure must be a single level, up to one storey high.
  • Building work is carried out by authorised building professionals
  • Cannot Include Fire Separation or Shared Walls: These types of structures fall under different rules and still require consent.

Why This Matters for Homeowners

The changes are a game-changer for anyone looking to add a granny flat, studio, minor dwelling, or guest accommodation. It removes a significant barrier to entry, the building consent process, saving time, money, and stress.

In practical terms, this means:

  • Faster project timelines
  •  Lower upfront costs
  • Less paperwork and bureaucracy
  • Greater design flexibility with the right builder and LBP

Things to Consider Before Building

While the changes are exciting, there are a few things to keep in mind:

  • Work must still comply with the NZ Building Code.
  • Site-specific planning rules may still apply (e.g. resource consent, maximum site coverage).
  • Only certain zones will allow granny flats, check with your local council.
  • You must still engage qualified professionals to ensure the build is compliant and safe.

What Can You Build Under the New Rules?

The 70sqm limit is surprisingly generous. Here are a few ideas of what’s possible:

  • A two-bedroom self-contained unit for extended family or guests
  • A home office with bathroom and kitchenette
  • A fully rentable minor dwelling for passive income
  • A retirement-friendly home for older parents wanting to stay close

Whatever your vision, the new rules give you more freedom to create something functional and beautiful right in your backyard.

Ready to Build Your Granny Flat? Let’s Talk.

At Villaworx Construction, we specialise in high-quality building solutions that meet both your needs and the latest regulations. Get in touch today!

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