Granny Flat House Plans
Granny flat plans are compact, self-contained dwellings designed to fit on the same lot as an existing home — for extended family, a home office, or rental income. Browse the plans below.
1 plan
Frequently asked questions
- How big can a granny flat be?
- Under small second dwelling rules, a self-contained secondary dwelling up to 60m² generally qualifies — go over that and it no longer counts as a small second dwelling. This is set by state planning provisions and your council, not by route6one, so always confirm the exact limit for your specific block with your council before committing to a design.
- Do I need council approval for a granny flat?
- A small second dwelling (60m² or under) generally doesn't need a planning permit on most residential lots, though a building permit is still required either way. Overlays like heritage or neighbourhood character can still trigger a permit requirement, so confirm directly with your council for your specific property before committing to a design.