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 building a granny flat easier by removing consent requirements for standalone dwellings up to 70sqm. This can save homeowners up to $5,650 and 14 weeks in processing time.
To be exempt, the build must be a single-storey design using lightweight materials and be supervised by Licensed Building Practitioners (LBPs). It cannot include wet-floor showers or solid-fuel heaters.
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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