RapidSiteplan

Granny flat questions

Plain answers to what people ask about a granny flat before they build: council approval, boundary setbacks, overlays and the site plan. Each answer ends with how to read the rules for your own lot.

What does a granny flat site plan need to show?

A granny flat application starts with the site plan: what it must show, the setbacks and site coverage the assessor checks, and how to draw one yourself.

How big can a granny flat be?

The council or the state caps a granny flat’s floor area, and some step the cap with the lot. What counts, what else limits it, and what the site plan shows.

Can I build a granny flat on my block?

Whether a granny flat fits turns on the zone, the lot, the services and where the house sits. What decides it, who decides, and what the site plan shows.

Do I need council approval for a portable building or home?

A portable cabin is read by its use and how it sits on the lot, not its wheels. When it counts as a shed, when as a granny flat, and who decides.

What zone is my property in?

The zone comes from the council’s planning scheme and shows on its map. How to look it up from the address, and what it changes for a shed or granny flat.

How close to the boundary can a granny flat be?

A granny flat is a home, so its distance to each boundary and to the main house comes from the planning and building rules for houses on your lot.

Can I build a granny flat without council approval?

A granny flat always needs building approval, but in some states it can skip a council planning application when it meets the rules the state sets.

Can I build a granny flat in a flood zone?

Often yes, with its floor raised above the flood level the council sets. How a flood overlay changes a granny flat, and who checks the floor level.

Do granny flats need council approval?

A granny flat always needs building approval, and some states skip the planning step when it meets their standards. How granny flat approval works.

RapidSiteplan reads the council and building rules for your lot from its address, checks the design against them as you place it, and prints the site plan. Site plans and assessments in minutes.

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