Granny flat regulations: New rules make it cheaper and easier to build

Feature article

Granny flat regulations: New rules make it cheaper and easier to build

Keeping Nana in the neighbourhood

28 January 2026

Hannah Hilliam
AI

AI summary

Building a granny flat is now cheaper and faster. New rules remove the need for building and resource consents for standalone units up to 70sqm, saving time and money.

To be exempt, the build must be a single-storey, standalone unit using lightweight materials. All design and construction work must be carried out by Licensed Building Practitioners (LBPs).

While consents are gone, you must still obtain a Project Information Memorandum (PIM) from your council, and Development Contributions may still apply.

What are the new granny flat rules?

What qualifies as an exempt ‘granny flat’?

How much can you save?

How to get started?

Kitset and design-build options

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Author

Hannah Hilliam Hannah Hilliam
Content Writer