Feature article
Granny flat regulations: New rules make it cheaper and easier to build
Keeping Nana in the neighbourhood
28 January 2026
AI summary
New regulations make it easier to build a granny flat. Standalone dwellings up to 70sqm no longer require building or resource consent, potentially saving thousands in fees and weeks in time.
To be exempt, the build must meet specific criteria, including being single-storey and supervised by Licensed Building Practitioners (LBPs). You cannot DIY the construction.
While consents are removed, a Project Information Memorandum (PIM) is still mandatory before starting, and councils may still charge Development Contributions.
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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