Family & life milestones

Granny Flat / Home Office

Add space, add value.

Granny Flat / Home Office

A backyard studio, granny flat or home office is one of the higher return-on-investment additions many properties can make — adding rentable space, multigenerational flexibility or a proper work-from-home setup. Funded through a refinance, the build sits at home-loan rates rather than personal-loan rates.

Things to consider

  • Council approval, siting, easements and setbacks vary by state and council — factor delays into the build timeline.
  • For rental use, understand the tax and insurance implications before committing.
  • Not all valuers add the full build cost to the property's post-build market value — a valuer's view can be worth getting first.
  • Keep contingency (10–15%) in the funding to cover the inevitable variations.
See the Renovator scenario

Related equity uses

Three more ways homeowners commonly put usable equity to work.

Explore whether granny flat / home office could work for you — complimentary, no obligation.

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Important — General Information Only

This information is general in nature and does not take into account your personal objectives, financial situation or needs. It is not personal advice, credit advice, tax advice or legal advice, and is not a recommendation to enter into, refinance, or remain in any particular credit contract. Any figures, calculations, or projections shown are simplified examples for illustration only — they are not guarantees or forecasts, and actual outcomes will vary based on your circumstances and the lender's assessment.

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