How much does a granny flat cost in Sydney?
Chloe Ramirez
Updated on March 21, 2026
How much does a granny flat cost in Sydney?
Ranging from 35m2 to 45m2 for a standard one-bedroom, a self-contained granny flat would typically cost between $85,000 and $100,000 in Sydney. The price includes the cost of standard fittings and professional construction from a reputable and licensed granny flat builder like ourselves.
Do I need council approval for a granny flat NSW?
Yes. A granny flat does not require council approval and may be authorised instead by obtaining a Complying Development Certificate (CDC). This fast-track planning and building approval process is akin to what is required for building, for example, a swimming pool, or removing or pruning a tree.
Is it cheaper to extend or build a granny flat?
An extension by-in-large will be cheaper. Especially if you need to feed plumbing, electricity and bring materials to a spot much further from the main dwelling.
How many granny flats can I have on my property NSW?
Maintain a 3m setback from the rear, 0.9m setback from the side boundaries. Maintain a distance of 3m from any existing trees over 4m in height. Maximum 60m2 external area for the granny flat. Maximum of 1 granny flat is permissible per eligible block.
Are granny flats worth it?
Building a granny flat is usually cheaper than buying a standalone investment property. Adding a granny flat to your house could increase your resale value. It gives the new owner the option to earn rental income, and the benefit of an extra bedroom.
How much does a backyard granny pod cost?
Granny pods vary in cost but typically range between $40,000 to $125,000, depending upon what’s included with the granny pod.
Can I turn my garage into a granny flat?
A detached granny flat is a freestanding building on the same block as your main home. Whilst they require a lot of room, they are very flexible, allowing you freedom with your design. They can also be quite inexpensive to build, you can even convert your garage into a detached granny flat.
Can I build a granny flat in my back garden?
If you own the property or have a mortgage on it, it is very likely that you can indeed build a granny flat in your back garden. Planning permission may be required (see below) but in general, there should be no issue. If you rent your home, you will need to discuss any changes like this with your landlord.
Is planning permission required for a granny flat?
The sociological benefits of proximity and support of family members is well documented. However, because a granny flat is regarded as an additional housing unit, it is therefore deemed “development” under the planning and development Acts. This means it requires planning permission.
Can you build a granny flat in your back garden?
So the answer to ‘can you build a granny annexe? ‘ – yes you can, however it would require planning permission for self living with a bedroom, bathroom etc, unless converting from an established outbuilding.
Why are granny flats so expensive?
Domain’s economist, Trent Wiltshire, told Yahoo Finance that a combination of unaffordable housing in NSW and lenient development laws in the state have led to a rise in granny flats. While granny flats are primarily built for family members, they’re not a bad way to make a little extra cash on the side either.
Can you build granny flat on investment property?
Granny flats can also be used as an investment property to generate rental income for you and your family. They’re relatively cheap to buy or build, easy to maintain and can provide a steady source of income.
Can you build a granny flat in your backyard in Sydney?
It’s a must-see for anyone in Sydney thinking about tiny houses or building a granny flat in the backyard – exclusive Backyard Pods display. This approved bedroom and ensuite extension at Croydon in Sydney NSW was built more cost-effectively using Backyard Pod kits for the new structures, then fitting out the interior as normal.
What is an granny flat?
Granny Flats are an attractive and affordable extension for the growing or extended family or as an extra source of income. Using only 100% Australian Made BlueScope® steel and COLORBOND® materials, these structures are quality products that will stand up to the harsh Australian environment.
Do you get a backyard pod with a granny flat?
You get a Backyard Pod, of course! The deluxe ‘Coolum’ design 2BR prefab granny flat or self-contained cabin 6m x 9m is delivered pre-wired, pre-plumbed, and complete to NSW, QLD, VIC, ACT. This upgraded example shows how basic prefab granny flat designs can be customised.
Why choose a granny flat from usefulsydney sheds?
Sydney Sheds and Garages have developed a range of affordable and compliant structures that are simple, cost effective and stylish. Granny Flats are an attractive and affordable extension for the growing or extended family or as an extra source of income.