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 rules make building a granny flat easier by removing consent requirements for standalone units up to 70sqm.
To qualify, the build must meet specific criteria, including being single-storey and using lightweight materials. All work must be supervised by Licensed Building Practitioners (LBPs).
While this can save up to $5,650, you must get a Project Information Memorandum (PIM) before starting. Be aware that councils can still charge significant Development Contributions, so check with them early in your planning process.
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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