A Granny Flat Could Boost your Property Values by 30% – CompactHomes

A Granny Flat Could Boost your Property Values by 30%

Core logic report: This is a report from Core Logic and here is the link to it: https://www.corelogic.com.au/news/granny-flat-could-boost-property-values-30-percent

More than half a million home owners across Australia’s eastern seaboard have enough space on their property to build a granny flat, which could boost home values by 30 per cent and add around 27% to rental income.

Combined analysis by CoreLogic and Archistar identified 583,440 properties in Sydney, Melbourne and Brisbane that meet the criteria for an additional self-contained unit of at least 60 square meters.

Constructing a two-bedroom granny flat would require an initial investment of around $200,000, while the outlay for a one-bedroom dwelling would be approximately $120,000.

CoreLogic Head of Research, Tim Lawless said: “Building a granny flat is becoming an increasingly compelling proposition for homeowners in a relatively lacklustre market. Not only can it help to manufacture new capital gains, but it has the potential to generate rental income while meeting demand for more affordable housing.”

A granny flat typically rents out for less than the price of a standard apartment, making it an attractive and affordable option for renters on a budget.

“Many properties identified as suitable for a granny flat are in densely populated and traditionally expensive areas, such as Sydney’s Northern Beaches or Hornsby. More granny flats on the rental market will make it easier for young people to stay in their preferred area, rather than move further afield to find value for money,” Mr Lawless said.

Co-Founder of Archistar, Robert Coorey said: “Many home-owners are sitting on a pot of gold in the form of excess land that could be developed to generate a new income stream. This has wider economic benefits for renters who want to access popular suburbs without paying a premium.”

“The family benefits of a secondary residency can’t be overlooked, whether that’s giving adult children more privacy while they save for a mortgage, keeping loved ones close as they become more reliant on care or having additional accommodation for overseas visitors,” he continued.

Capitalising on this untapped potential for half a million additional dwellings could also deliver far reaching economic and social benefits, including greater employment opportunities for builders and other tradespeople.

“What is a relatively small outlay for home owners could boost the construction industry to the tune of $87.5bn and accommodate the growing population in some of the cities’ most popular suburbs,” Mr Coorey continued.

“While the benefits are tremendous, one minor watch out is regulation on second residencies, which tends to change state to state. Archistar’s platform helps home-owners by instantly assessing thousands of zoning and planning laws and producing a report, so it’s worth taking this step and consulting a local planning expert before you proceed,” Mr Coorey said.

Capital City Variations

CoreLogic and Archistar analysis highlighted the top 20 suburbs for granny flat potential across Sydney, Brisbane and Melbourne.


Sydney had the greatest potential for granny flat development, with 233,218 properties (15.9 per cent) meeting the criteria. Topping the list is Castle Hill, where a granny flat could be built on 4670 dwellings. This was closely followed by neighbouring suburb Baulkham Hills with 4462 suitable properties. Half the properties (50.3 per cent) in Dennison West were deemed eligible for a granny flat, the largest proportion overall, followed by Davidson in the Northern Beaches (47 per cent). With a median price of $610,622 and an average land size of 638 square meters, St Clair in Penrith was Sydney’s most affordable suburb in the top 20 granny flat hotspots, while also delivering the highest rental yield of 3.9 per cent.


Brisbane has 204,598 properties suitable for developing a granny flat, representing 21.6% of all properties in the city. With an average land size of 759 square metres, The Gap in the Brisbane council area has the most properties available for development (2,784). Proportionally, Ferny Hills in Moreton Bay tops the list with six in ten properties (60.5 per cent) having granny flat potential.


In the Melbourne metropolitan area, 7.2 per cent of properties (145,625) are suitable for constructing a granny flat, due to stricter town planning regulations. With a median value of over $1.16m, Mount Eliza in the Mornington Peninsula has the most properties available for development (2584), while the greatest percentage of properties suitable for an additional dwelling are to be found in the Mornington Peninsula suburb of Merrick’s Beach (47.3 per cent), which has a median property value of $806,779.


Read more in attached report or go to: www.archistar.ai

For further information contact: Max Hewett (GRACosway on behalf of Archistar) at mhewett@gracosway.com.au or 0432 332 215

Mitchy Koper at: media@corelogic.com.au or on 1300 472 767.

About CoreLogic: www.corelogic.com.au About Archistar: www.archistar.ai


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