Granny flats are small, self-contained homes which are built on the property of the main household dwelling.
Austrabuilt is a specialist builder of comfortable living spaces that feature many of the amenities that regular-sized homes contain.
An addition of a Granny Flat on your property means that you can keep loved ones close to you without paying for expensive retirement care or to add a small rental accommodation on your property.
Granny flats can be used for many different purposes:
- To provide a safe living space for an elderly family member
- A guest house option for visiting friends or relatives.
- Safe environment for disabled people
- Young adults who want to experience a little freedom
- Rental space to help you earn extra money
Many people opt to add a granny flat to their property because it increases that property's overall value. When it comes time to sell your home, you can use your newly built granny flat as a selling point!
Think about the advantages that owning a granny fat can afford you and your family. If it is unoccupied, it can be used as a private space for you to retreat to for some peace and quiet.
Definition of a Granny Flat
Granny flats are often defined as "secondary dwellings." While this is basically correct, when it comes to seeking approval for a granny flat, it's better to understand how your local council defines the term. This is not as complicated as you might imagine.
While different localities may have slightly different regulations, they all follow these general guidelines:
- A secondary dwelling is a dwelling in addition to the main home. You cannot build a granny flat on unoccupied land or on a property used primarily for commercial purposes.
- A granny flat must be "self-contained." This means that it must have a separate entrance and have separate toilet, bathing, sleeping, cooking and living facilities. It does not, however, require separate parking facilities.
- A number of regulations have been adopted in order to prevent homeowners or developers from attempting to overstep the boundaries of the definition of a granny flat:
- Granny flats can be built only on Residential Zone property.
- Only one granny flat is allowed on any single residential property.
- The owner of the granny flat must also be the owner of the primary dwelling.
- The granny flat cannot take up more space than the maximum allowed for the primary dwelling.
- As a rule, a granny flat can have no more than 60 square metres of living space and 12 square metres of patio or veranda space. Regulations vary slightly from council to council, but you can use these as a general guide.
- Granny flats cannot exist on strata title, subdivided or community title property.
- As long as it is self-contained as defined above, a granny flat can be attached to the home or it can be a separate dwelling.
Getting Approval to Build a Granny Flat
As long as your granny flat adheres to the regulations outlined above and the building codes, getting approval to build a granny flat can be relatively quick and easy. You will need to get DA (Development Application) approval, but in many cases, this can take as little as 10 days, if all of your paperwork is in order. If you want to be reasonably sure of getting it right the first time, get a local draftsperson to draw up your plans for you. They will be aware of all the regulations you need to comply with and will provide professional drawings that council will accept.
If you are planning on converting an unused portion of your house into a granny flat, keep in mind that it must include a separate entrance: passage through shared living space is not allowed. If you are building a separate granny flat or adding an extension, be sure provision is made for unobstructed street access.
Contact Austrabuilt today, we will happily answer all of your questions.

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