16/10/2026
Granny flats just got bigger in Victoria ๐ก
From 15 October 2026, the planning limit for a granny flat (small second dwelling) went up from 60 mยฒ to 80 mยฒ. Attached decks and verandahs no longer count towards it.
What hasn't changed:
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No planning permit on most lots of 300 mยฒ or more without special overlays
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A building permit is still always needed
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The building rules still say 60 mยฒ until they're updated
Every block is different. Book a free site inspection and we'll show you what fits yours.
๐ What changed: https://xirconhomes.com.au/blog/granny-flat-80m2-victoria/
๐ Our 11 granny flat designs: https://xirconhomes.com.au/granny-flats/
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Book a free site inspection: https://xirconhomes.com.au/granny-flats/site-inspection/
๐ 1800 947 266