Sydney's Affordable Custom Designed Granny Flats

With over 100+ unique & fully customizable granny flats built around Sydney, we've seen it all and done it all, so if you're looking for a high-quality, affordable custom design granny flat, you're in the right place!

We've built over 1200 granny flats since 1979. That's over 40 years of Sydney-siders trusting us to make their granny flat home a better space to live.

  • Detached & Attached Granny Flats

  • Studio Granny Flats with Garage

  • Single & Two Storey Granny Flats

  • 1, 2 & 3 Bedroom Granny Flat Options

Request a Custom Design Granny Flat Quote

Fill in the form below or call us now on 1300 580 176

Small Space with Huge Potential

Building Sydney's Custom Designed Granny Flats for over 40 Years!

Absolute Granny Flats are the premier custom design granny flat builders in Sydney, New South Wales. We have been customising granny flats for 40 years and we know what works! Our team of experts can work with any size space to create your perfect abode.

You’ll love our designs, but don’t just take our word for it – check out the reviews of some of the hundreds of satisfied customers we have worked with over the years! Each design is unique and can be fitter to your needs so that you get exactly what you want from your new home. And if there is anything else you need, just let us know and we will do everything possible to help. We pride ourselves on being able to meet all customer requests no matter how big or small they may be.

As seen on...

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Detached & Attached Granny Flats

A detached granny flat is a standalone secondary dwelling on a block that already contains the main dwelling.  

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1, 2 & 3 Bedroom Granny Flats

Multi-bedroom self-contained granny flats equipped with a study.

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Granny Flats with Garage

A garage is classified as a non-habitable space and can be attached to a granny flat without it being counted as part of the habitable area.

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Single & Two Story Granny Flats

Two story granny flats are starting to become a lot more popular as investors and families are realizing the potential of placing one of these homes in their backyard!

The types of granny flats we build

  • Custom designed Detached Granny Flats

    A custom-designed detached granny flat is a standalone secondary dwelling on a block that already contains the main dwelling. Building a detached granny flat can be perfect to use as an investment, as it has a separate entryway to your main house and most often a fence between the two buildings to create more privacy for your family or tenants.

  • Attached Granny Flats

    A custom designed, attached granny flat is joined to the main dwelling on the property and is designed to fit seamlessly with your home. By altering the orientation of the granny flat we can either maximise your privacy or increase the interaction between the occupants.

  • Custom Granny Flat with Garage

    Did you know you can build a custom granny flat with a garage attached? Well, you can! The State Environment Planning Policy (SEPP) permits a granny flat to be built with an internal living space of 60m2.

  • Two Story Custom Granny Flats

    Custom Two-story granny flats are starting to become a lot more popular as investors and families are realizing the potential of placing one of these homes in their backyard! Two-story granny flats come in different shapes and sizes, however, like single-story granny flats, they are restricted to 60m2 of internal habitable space.

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See what people say about our custom-designed granny flats?

Kathy LY
Kathy LY
a month ago

Steve and everyone there is truly amazing!
Over the past few years i have built 3 granny flats with Absolute Granny Flats and they have not once disappointed me. Would like to thank everyone there for carrying out such an outstanding service. I am also amazed with the speed of service Absolute team carried out from the point of design to the selection of materials. Highly recommend them

thuy vu
thuy vu
3 months ago

We recently built a granny flat with Absolute Granny Flats and are very satisfied with the quality and speed of the service. Designs and approval were hassle-free. Our site supervisor, Steven, was very understanding, easy to work with and was very quick to rectify any of our concerns.

max soloman
max soloman
a year ago

Great service, I got a good deal on the price and the build quality is excellent. Have recommended to my friends and family

Stuart Fraser
Stuart Fraser
a month ago

We recently built a granny flat with Absolute and had a fantastic experience! They offered quality inclusions in comparison to competitors and were quick to responses. Steve was taking lead throughout the build and kept us informed along the way. He always made time available to us to review the granny flat when it suited our schedule and was quick to address any areas of concern. 

Elizabeth Escandor
Elizabeth Escandor
a week ago

Steve, the director of the company is a very passionate person and happy with the staff. We're happy with the outcome of the granny flat they built for us. The inclusions were of high quality. We are happy to recommend them to other people who are intending to build one for either extra space, to downsize or for additional income.

Gulay Sarac
Gulay Sarac
1 year ago

So far, the construction of our granny flat has gone to plan and we are very happy with the team at Absolute Granny Flats and the feedback they provide. Steve - one of the foreman was very accommodating and helpful all through making the entire project fun and productive. We work across nations and we will be happy to employ their services on our projects overseas.

Muhammad Simanta
Muhammad Simanta
a year ago

Hello Steve, Sometimes I forget to say "thanks"for all the little things Absolute homes have done to construct our dream granny flat!! I want you to know that even when I do not say so, I am so thankful for your wonderful service, caring and willingness to please your clients. You're truly an amazing person! My personal thanks to Dennis who is a tremendous site supervisor and always happy to hear clients. Our Best wishes for the success of your son, the next champion swimmer! Best Wishes from Muhammad & Afroza

Jeanette Ohagan
Jeanette Ohagan
a month ago

Prompt in addressing queries and concerns, quality work without hassles. No great price variations from original quote/agreed amount which means no headache in my bank account! Approachable staff available at every stage of the build whenever I needed clarification. Would work with them again definitely.

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Custom Granny flats are an excellent way to add value to your property. They’re also great if you need extra space, like an office or guest room. Our granny flats can be customised to suit any type of lifestyle and budget.

Having built over 1200 custom-designed granny flats right here in Sydney, we know what works best for our clients. And because we've seen it all and done it all before, we understand exactly what will work in any given space. This means that whatever design you choose we will fit it perfectly into your life and surroundings.


    Our diverse range of floorplan ideas and our ability to custom build sets us apart and gives our clients the advantage. Come and experience the Absolute difference. With many amazing designs on display and a team of highly qualified building consultants on hand.


    Our custom granny flats are created to suit your needs and are designed to fit any space and budget. If you're looking at building a granny flat but not sure how to go about the process, rest assured, we will work with you through the entire process, from concept to customisation to construction then to completion. 

Custom Granny Flat Options

We are the dedicated granny flats builders Sydney siders turn to more often, because we can provide everything from a small backyard retreat, to sturdy, temporary housing units, and you know that the Superior Granny Flats team will always work to find the right unit for your needs and the available space. Our range of relocatable homes give you flexibility and choice, so that we can supply the solutions our customers need.

Our partner brands

Building beautiful Sydney custom granny flats for the modern family with the right brands.

Custom Granny Flats FAQ

Typically, a one-bedroom granny flat should cost anywhere between $100,000 – $120,000 which includes site costs, design and approvals, build price and standard inclusions, full turnkey ready to move in.

Granny pods vary in cost but typically range between $40,000 to $125,000, depending upon what's included with the granny pod.

A great way to utilise unused space in your backyard is to build a granny flat — not only will it be able to provide additional living space for you and your relatives, but it can also serve as a steady stream of income if you ever decide to rent it out. Granny flats are easy to build and maintain.

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.

New South Wales – From 60 square metres – 100 square metres. The former is a Complying Development, and the latter must be approved by submitting a Development Application.


We're one of the most experienced companies in Sydney when it comes to building your granny flat. Our fully qualified builders and designers can customise our one, two, or three-bedroom floor plans to fit your needs and style.

You won’t find another company with our passion for creating beautiful granny flats that are functional and practical. We work hard to ensure that every detail is perfect so you can enjoy your new addition as soon as possible.

Request a Granny Flat Quote

Fill in the form below or call us now on 1300 971 276

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