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

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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Author

Hannah Hilliam Hannah Hilliam
Content Writer