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. This can save homeowners up to $5,650 and 14 weeks in processing time.
To be exempt, the build must meet specific criteria:
- Be a single-storey, simple design using lightweight materials.
- All work must be done by Licensed Building Practitioners (LBPs).
While consents are gone, you must still get a Project Information Memorandum (PIM) and pay any applicable 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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