View our range of 1, 2 and 3 bedroom Granny Flats to suit NSW Building conditions
View our extensive range of 1, 2 and 3 bedroom Granny Flats designed to suit ACT building regulations
From Classic to Custom designs, Cubitt's are your Granny Flat Builders in NSW and ACT. Cubitt’s experience and passion for what we do means our projects are delivered on time and within budget, with no hidden fees or post-contract changes.
We are full-service business, guiding and advising our customers throughout the process – from planning, design and council approvals, right through to building completion.
Experience the benefits of partnering with the most trusted Granny Flat builder in NSW and the ACT.
Cubitt’s are committed to providing a stress-free and seamless experience for our customers through our unmatched expertise. Build with confidence with the Cubitt’s Service Guarantee, including;
Please meet Paul, one of our Cubitt's Granny Flat Owners who's build has just been completed. When we recently visited Paul to take images of his Granny Flat, he happily offered to record a testimonial. We're so happy he did.
Want to read more from some of our happy customers? View some of our recent testimonials.
See why this is our most popular model, simple yet stylish with an open plan kitchen, dining and living room space. Perfect for those who enjoy a lifestyle of entertaining.
The clever use of floorplan delivers surprising space, with three bedrooms of impressive size all with built-in wardrobes. Add a touch of luxury with a deck or alfresco areas.
Perfect for long or narrow blocks, this model features a light-filled and spacious design. With optional cathedral ceilings, open-plan living plus separate laundry and bathroom.
Over 25 years, Cubitt's Granny Flats and Home Extensions have built relationships with skilled designers, planning experts and specialist tradespeople – a community all handpicked for excellence. With our unmatched longevity and reputation, the Granny Flats and Home Improvement projects we deliver are sourced from world-class suppliers, and our construction team is known for their reliability, attention to detail and friendly service.
Cubitt’s provides a stress-free project experience. We limit confusion by providing every customer with a dedicated design consultant, council co-ordinator and site supervisor from the day your contract starts right through to building completion.
Cubitt's Granny Flats and Home Extensions is family owned and operated, and a business you can depend on. Our core values of reliability, transparency, quality and integrity are deeply entrenched in our business and reflected in our results. These values, along with a personalised approach, upfront pricing with no hidden fees, and progress updates through every step of the journey gives our customers an advantage like no other.
Our range of 1-bedroom Granny Flat designs make every square metre count. Perfect for narrow blocks of land, our base models are available in 45m2 or 50m2 plus Porch. Alternatively, you can customise to suit your space with our experienced design team.
A popular choice for those building a home office, artist’s retreat or extra accommodation.
One Bedroom Bottlebrush Granny Flat shown
Our Best Seller!
Designed to fit on standard blocks, our 2-Bedroom Granny Flat range extends across an array of base models, from as little as 40m2 through to 50m2, 60m2 and 60m2 with optional alfresco decking for relaxing on sunny days.
2-Bedroom Granny Flats are immensely popular due to their versatility and unique balance of spacious yet compact living.
Two Bedroom Telopea Granny Flat with alfresco shown
The clever use of floorplan in our range of 3-Bedroom Granny Flat designs delivers surprising space!
The perfect option for supporting growing families, or maximising the return on investment of your unused backyard space.
Available in 52m2, 60m2 or even 90m2 (in the ACT), with vast customised features on offer such as decking and alfresco areas for added luxury.
Bottlebrush, 3 Bedroom 60m2 Granny Flat base model shown
Moving into a smaller space and styling a Granny Flat can be a bit daunting, especially when it comes to our favourite pieces and the need to downsize. With the help of Senior Stylist for Valiant, Amy Frost, our goal is to make the transition simpler by providing some good advice around maximising your new space.
Join Amy Frost, Senior Stylist at Valiant as she shares some fantastic tips and tricks for downsizing.
Did you know a bigger rug in a space is often better than a smaller one? Discover how to combine your favourite older pieces with new items to create a stylish, fresh and perfectly proportioned Granny Flat livng space.
Feeling safe and secure has never been easier with our Smart Security Pack
Discover the value and commitment placed behind every build of a Granny Flat or Extensions from Cubitt's.
Enquire about a new Granny Flat designed and built by Cubitt's. Feel Secure, Comforted By The Cubitt's Advantage. Our experienced team of consultants take the time to not only review any specific needs such as DAs through council at no charge. We also don't ask for upfront fees. Ask your Cubitt's Team Member today, what sets us apart from our competitors.
Cubitt's Main Sydney Exhibition Centre & Head Office
152 Russell Street, Emu Plains NSW 2750
Banksia 63m2 Option 1
Bottlebrush 60m2 Extended
Cubitt's Wollongong Exhibition Centre
244 Shellharbour Rd, Barrack Heights 2528
Monday- Saturday 9am-5pm
Banksia 63m2 2 Bedroom Banksia Option 1
Bottlebrush 71m2 2 Bedroom Granny Flat
Cubitt's Newcastle Showroom
124-126 Maitland Road Mayfield NSW 2304
61m2 Telopea 2 bedroom granny flat
63m2 Banksia 2 bedroom granny flat
Cubitt's Canberra Showroom
80-82 Kembla Street, Fyshwick ACT 2609
Tuesday - Friday: 9am-5pm
Bottlebrush 80m2 2 Bedroom Granny Flat
Telopea 70m2 2 Bedroom Granny Flat