What is a Granny Flat and How Does it Add Value in Brisbane?
For many Brisbane landlords, a granny flat can feel like the perfect way to generate extra income or add flexibility to their property. But before you dive in, it’s important to understand what a granny flat actually is, why they’ve become so popular, and the key factors that influence whether they truly add value to your investment.
A granny flat, also called a ‘secondary dwelling’ is a self-contained home built on the same lot as the main residence. In Brisbane, these dwellings are typically either:
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- Attached to the main house (for example, built as an extension), or
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- Detached often a separate building in the backyard.
By definition, they include their own entrance, bedroom(s), kitchen, bathroom, and laundry facilities, making them independent from the main house.
In some cases, a granny flat can be as simple as converting a garage or under-house space. In other situations, building one requires formal council approval, including a development application and engineering work, much like any other new construction. If you are considering building a granny flat and want to investigate the council approvals regarding it. We recommend starting with the Brisbane City Council’s City Plan online mapping tool. By using this tool, you can start the process by checking your property’s zoning, overlays, and development filters; and then go from there!
Nadine Gatehouse, one of our Senior Property Manager’s here at Position One Property states: “We often see our Brisbane landlords surprised at how much planning approval is required, even for smaller granny flats. When built correctly, it is an excellent addition to a home. But we do find those who have completed the granny-flat build will say it took a lot more work than they initially anticipated!”
Where Did the Term “Granny Flat” Come From?
As the name suggests, the original purpose of these dwellings was to provide housing for elderly parents, a way of keeping elderly family members close while still giving them a feeling of independence and privacy.
In Brisbane, this idea has resurfaced in recent years. Rising property prices and the growing cost of aged care mean more families are looking for practical, multi-generational living arrangements.
Michelle Davies, Head of Sales here at Position One just completed construction on a granny flat at her home. She states: “I have always known the plan was for me to look after my mother as she continues to age. After discussions with my husband, we decided to build a granny flat on the land behind our home. While my Mum won’t move into the granny flat immediately, we thought we would build it to also have a spot for interstate family and friends to stay when they visit Brisbane. When Mum feels ready to move in, it will be great for her to still live independently with the bonus of it being extremely easy for me to help when needed!”
Why Landlords Build Granny Flats:
While many granny flats still serve the traditional purpose of housing relatives, today’s landlords in Brisbane are increasingly building them for other reasons, such as:
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- Increasing cash flow: an additional rental stream that can offset mortgage costs.
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- Adding value to the property: more bedrooms or additional living space can make the property more attractive to buyers.
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- Broadening market appeal: renters are often drawn to properties that offer flexible living arrangements, especially in areas with strong demand. We have noticed a particularly high demand for granny flats in recent year.
The Value Depends on More Than Just Building
It’s tempting to think that adding a granny flat will always add value, but the reality in Brisbane is more complex than that. The return you will potentially see depends on several key factors, including:
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- Location: Some suburbs have stronger demand for granny flat rentals than others.
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- Main property size: A five-bedroom house with a granny flat may be more appealing than a smaller house with limited space.
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- Granny flat size and quality: Larger, well-designed flats tend to perform better than makeshift conversions.
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- Tenant demand: The biggest question is whether there’s a market for the kind of dwelling you’re offering.
Granny flats can offer Brisbane landlords a flexible way to generate extra income and increase property appeal, but whether they truly add value depends on the suburb, the build, and the demand.
To delve a little deeper into the topic, we will explore how granny flats can boost rental income and attract different types of tenants in Brisbane’s property market in the next article.