Granny Flat Check

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Rental yield calculator

What would a granny flat earn?

Put in the build cost and the rent. We work out the yield, your cash return and how long it takes to pay back.

Studio 1 bed 2 bed 3 bed

Build Build cost Other upfront costs fencing, meter, furniture

Rent Weekly rent

Empty weeks a year Rent growth a year

Running costs a year Property manager % of rent, 0 if you self-manage Landlord insurance Extra rates, water, other Maintenance % of build cost

Finance Borrowed % of upfront cost Interest rate interest-only Value added to your property optional

Gross yield–

Net yield–

Cash return–

Pays back in–

–

First year

Ten years

–

Before tax. Renting out part of your home can change your land tax and the capital gains tax exemption on the house. Check with your accountant. Rent guide from Melbourne granny flat listings, 2026.

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Granny Flat Check · Melbourne, Victoria

Everything on this site is general information and a concept only. Layouts, sizes, prices and rent figures are estimates, not a design, a quote or advice. Check your plans against the building and planning rules that apply to your block, with your council, certifier or building surveyor, before you build.

Victorian land, planning and aerial data © State of Victoria (Department of Transport and Planning), CC BY 4.0. NSW cadastre and imagery © Spatial Services (DCS) NSW, planning data © NSW Department of Planning, Housing and Infrastructure, CC BY. Queensland cadastre and imagery © State of Queensland; Brisbane zoning and overlays © Brisbane City Council, CC BY 4.0.