Luxury granny flats: designs, plans & prices

Luxury granny flats combine exceptional design and practical functionality.

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Create a custom luxury granny flat with the Backyard Granny flat specialists

As granny flat experts, we know how to create stunning granny flat designs that homeowners and property investors love.

Our luxury granny flat design maximises luxury and comfort while remaining affordable, balancing shared living with privacy—the perfect granny flat!

Our carefully constructed granny flat plans – including our popular options for luxury, designer dwellings – can be custom-designed by our expert team to suit your personal style.

Whether you’re looking to build a granny flat as an investment or for personal use, we’ve got you covered. Read our Guide to Granny Flats in Australia to learn more about our modern, cutting-edge designs that maximise the new space and natural light.

With over 1,000 projects completed, we are a reputable local company that values transparency and collaboration with our clients throughout the whole process of building granny flats. We offer no hidden fees, no post-contract changes, just quality workmanship completed on time and within budget.

To experience our efficient building process, exceptional workmanship, and high-quality finishes first-hand, contact us today to learn more or to arrange a visit to our beautifully designed display home.

Our luxury floorplans

Download our full range of granny flat plans & designs

Full range of architectural designs
Detailed floor plans of luxury, custom and one, two, and three-bedroom granny flats
Floor plan dimensions and measurements
Complete guide to design features
Facade options

Your neighbours who just built a granny flat with us

Don’t just take our word for it. Check out these real client testimonies in our review feed direct from Google. This many smart novacastrians can’t all be wrong! We’re so thankful for all the amazing clients that we’ve been able to build with. Hear what your neighbours have to say about building a Newcastle granny flat with Backyard Grannys.

Testimonials

"A big thank you to Backyard Grannys for my new abode. I found BYG on the internet and I can thoroughly recommend them to do the build. From the very beginning BYG have been very professional, easily contactable and easy to discuss the build with. The layout has taken everything into consideration that I will need now and into the future. Not to mention it has added considerable value to the property. A big shout out to Brett Tubnor, my project manager, who kept me updated and dealt with any questions I had in a timely and professional manner. Also to the staff in the office in particular Lynne, thank you. I have no hesitation in recommending BYG."

Victoria Driscoll

"Backyard Grannys were very professional, each step was explained clearly and all communication was easy to understand. Our site supervisor Brett was super organised, kept us informed of all progress and ensured all finishings were high quality. I would highly recommend Backyard Grannys."

Katherine Cody

"Backyard Grannys built our 2 bedroom Granny Flat, from the getgo we have had the BEST experience. They talked and walked us through the whole process and timings of when things would occur. We live 6 hours from where the building will be built, the communication was excellent and the upgrades we requested where done straight away, we made the colour selections over the internet which was just so easy, they called to confirm our selections and if there were any changes due to manufacturers issues they were onto us to let us know and a like for like products where used. The built was quicker than we expected and the handover occurred on the OCT long weekend, Graham walked us through the Granny and it is far better than we expected, the attention to detail and the quality is superb. Would I build with them again 110%. Do yourself a favour and check them out you will not be disappointed."

Craig Sharp

"We would like to say a very sincere thank you to all at Backyard Granny’s, we mean everyone starting with Alex Mitchell the Managing director of the company right through to the truck driver who cleans the yard. We were blessed to have found this wonderful company. From day one they made us feel so special and the advice, communication and support was beyond words. I have been involved in the building industry for over fifty years and have never found a company to go to such lengths to make sure we were kept up to date with every step of the build.The workmanship of the project from day one right through to the handover of the keys was beyond belief. It was easy to understand just how much Alex ( Managing Director) takes so much pride in his Backyard Granny’s Flats and how he has managed to make sure this flows so smoothly throughout his whole team which also includes his contractors. We also need to say a special thank not only to Alex but Aemelia McCorb Architectural Designer, Lynne Tarlinton, Lynne Smart Client Service Officer and Erin Murray Administrator. A special mention has to go to Graham Smith who was our Project Manager. Graham’s dedication and commitment to look after our build was outstanding and his commitment to make sure that every detail plus all communication was important to us as if he was building the flat for himself.Regards - Roy & Julie Leslie"

Julie Leslie

"We could not be happier with our new Granny flat. BG’s was so supportive and provided the very best service imaginable from the first visit to the display, to getting the keys. Our Project manager Graham Smith is irreplaceable and made everything easy and efficient. The team were always available to listen and provide guidance and support when needed. Lynne is just the best and kept us up to date along the way. We could not have asked for more and would recommend the company to anyone."

Sarah-Jane Daniel

"After a rocky start with sales staff we were appointed brett tubnor as project manager from that first call from brett my mind changed about backyard grannys we had the pleasure working with brett and all he’s trades we found him to be honest and if there was a problem he would ring i would recommend backyard grannys in the future."

Wayne Guthrie

"We just had our Granny Flat completed (Jan 2025) and myself and my wife are very pleased with the results. Backyard Grannys were flexible enough to incorporate a design which was generated by my wife utilising an off the shelf design/architecture computer program. Backyard Grannys then used this as the basis to complete an up to regulatory specification Granny flat design.Having heard so many horror stories of people having difficulties and severe disagreements with their builders, we found Backyard Grannys superior ethics and customer focused ethos to be a most unexpected pleasant surprise. We sincerely hope that Backyard Grannys never changes that aspect of your business, as in our case it has served you well, and gained you loyal and satisfied clients.The staff at Backyard Grannys are exceptional. From the sales and design team, to Backyard Grannys CEO Sarah Gow (who personally inspected each stage of the build) . Our site manager Aaron Mullins in particular was awesome. He took our calls no matter how busy he was and made himself available to address any questions, requests or concerns we may have had resolving all such queries promptly and to our satisfaction. A very client focused outfit.We would highly recommend Backyard Grannys to anyone. They were very responsive to requests and questions, and when we were told something, it was done without fail. Pretty great building experience overall. Dealing with Newcastle City Council......., well that's another story😆Pete and Michelle Evans21st of February 2025"

Peter Evans

"Thank you to Grant, Caroline & Michelle for taken the time and patience to go through the details of the granny flat, Helpful friendly staff.We have now started the process of building a GF April 2023 will update at a later time.......Update - Building start date September 2023Update - So far very happy with the service and build will add photos after completion.And thank you Brett my Project Manager.Awning was my little touch.Another update: December 2024 building still as new with no issues and have added some photo that some people may have like."

Andrew

"Great service at BYG right from the start. Josh was very thorough with his quote and also recommend Axon cladding which was slightly different to the original cladding I wanted but the Axon cladding really made the granny flat stand out! Aemelia was really great and meshing the whole design together!Highly recommend talking to Josh for any of your granny flat ideas!"

Shannon Allen

"The whole team at Backyard Granny’s have been fantastic to work with. The contractors were each different but carried on their work requirements quite professionally. While at first the process seemed a bit stressful for me, I have to say that I couldn’t have picked a better team than Backyard Grannys - everyone was so easy to work with and nothing was too much trouble, with special thanks to the project manager Riley. I also want to thank the office staff too, especially Lynne, who was the best person to help guide me whenever I needed to ask questions. Overall I’m extremely happy with the end result and could not recommend them highly enough."

Anne Mitchison

Take a tour of Backyard Granny’s award-winning granny flats

Backyard Granny is an award-winning builder and full-service construction company that provides quality craftsmanship and a hassle-free process when it comes to building granny flats. We aim to reduce disruption to your life and support you throughout the project – from design through to construction.

We handle all the paperwork and approvals, manage all the tradespeople and construction, and liaise with specialists on your behalf, so all you need to do is sit back and wait for your dream granny flat to be complete!

Let us help you bring your backyard dream to life. To help you decide what will work best for you and your family, we have display homes you can visit and virtual tours you can use to explore our range of granny flats, including our luxury design options.

Granny flat virtual tours

If you cannot make it to one of our display homes, you can always take a virtual tour of a granny flat instead!

Explore our award-winning designs to get a sense of the size, space, and layout—all from the comfort of your own home. Virtual tours are the fastest and easiest way to explore potential granny flat designs, and they are available online—no bookings or contact required. Simply select a home and start exploring!

Build your dream granny flat with Backyard Grannys

Are you inspired and ready to start building the backyard flat of your dreams? We have a variety of granny flat floor plans and customisable features for you to explore, from studio granny designs to more spacious options.

As experienced granny flat builders, Backyard Grannys works with an extensive range of materials, features, and designs to create the granny flat of your dreams. Whether you’re looking to build an investment to generate rental income or a secondary dwelling for more space, we can help you create your ideal living space that complements your existing home.

Unlike other builders, we specialise in granny flats and have the expertise to guide you through every step of the process.

You can contact us online to arrange a no-obligation free quote or give us a call on (02) 4947 2800.

Backyard Grannys' luxury granny flat designs

We’ve built over 1000 granny flats for our friends and neighbours. In that time we’ve learnt the most common concerns and difficulties and have provided this quick help guide below. If there’s anything not answered here please contact us and we will happily answer any other questions or concerns.