Extra Space With a Touch of Luxury
How to Build a Granny Flat That Fits Your Needs
There are so many uses for a granny flat. Make it your home office. Create a multi-generational household. Rent it out. List it as a holiday rental. Whatever you’re picturing for your space, our granny builders on the Gold Coast will make sure it has that luxury feel you’ve come to love in your own home.
Our 20+ years of experience as local builders has given us the knowledge of Gold Coast Council permits and approvals, as well as creating a network of reliable trades, to make it easy to build a granny flat. Bring your own plans or allow us to help you put your ideas on paper, and then allow us to bring that vision to life. Get started with a consultation.
Years Experience
Types of Second Dwellings Our Granny Flat Builders Can Bring to Life
Gone are the days that granny flats were just rectangle eyesores in the backyard. Our Gold Coast granny flat builders create spacious, beautiful second dwellings that fit with your existing property to keep it all cohesive.
Attached Granny Flats
If you’re wanting to extend your home with a granny flat, while still giving the occupant privacy, an attached second dwelling may be the way to go. Our builders can create fully self-contained granny flats that feel private with their own kitchen and bathroom, while still being attached to your physical home.
Granny Flat Garage Conversions
Converting a garage into a self-contained granny flat, complete with new bathroom and kitchenette, can give you more living space that still feels part of the home. It can give elderly family members a way to still maintain their independence, while having that confidence and connection by being only a door away.
Detached/Freestanding Granny Flats
A detached or freestanding second dwelling is what comes to mind when most people think of a granny flat. They’re completely separate from the house, and can even have a second entrance built, such as via a private side fence, making it ideal for family or as a holiday or private rental property.
Other Secondary Dwelling New Builds
Granny flats don’t just have to be for living in. They can be used for home offices, studio spaces or anything you may need more space for, while still having some privacy and separation from the main home. We can add patios, bathrooms, kitchens, car ports or even a second-storey addition to give you more space. Ask us how today.
TESTIMONIALS
Get The Inside Scoop From Some of Our Office Remodelling Clients
We asked Castle Construction to quote for a house extension and from the moment I started speaking with this company I knew it was going to be a positive experience. We asked 5 builders to quote, Greg was the only builder we wanted to use, he was on time, on price and full of can do enthusiasm – let’s just say the other builders weren’t like this.
The team at Castle Construction were so professional, they were tidy, respectful of our home and considerate throughout the whole project as I work from home. The advice they provided was invaluable, they saved us time and money and offered recommendations on what would look nice, how we could save money and really knew what they were talking about – the end result is awesome and we couldn’t be happier.
The whole experience has been easy, stress free and professional. If you are looking to get any building works done – big or small we would recommend you contacting Greg and the team at Castle Construction today for a quote – we are not just satisfied with the building work that was provided we completely trust Greg and the team at Castle Construction – you can’t buy trust, it’s has to be earn’t. Great Job Guys, Thank you so much
Greg and his team of Castle construction have completed an excellent job on our house renovation. We cannot speak highly enough of Greg, continually achieving a high level of quality and demonstrating a high level of professionalism. Greg was easy to deal with and down to earth through the whole process. Communication throughout the renovation was excellent. He was extremely thorough, explaining every step and answering all our questions along the way.
Greg was accommodating when hurdles came up and worked around them with ease. He also had awesome ideas and alternatives to our design which incredibly improved our house layout and design. The end result was better than we could imagine and we could not be happier.
Even after the renovation, Greg offered us to help with any issues we might come across once we moved in. We are so glad to say that we did not have a single thing we need to fix after moving in for 3 months. We are enjoying every little detail and just can’t stop admiring his high quality of work everyday.
In 2020, my wife and I engaged Castle Construction company to renovate our home on Sovereign Islands. Our experience was nothing short of amazing with Greg Rice and his entire team. All the work was finished to fantastic level.
The team were easy to deal with, accommodating on changes, transparent with pricing, and they delivered the product on time. I would recommend Castle Construction as the company to use when building in South East Queensland.
My wife and I would be happy to endorse this company and speak to anybody interested in giving them a go!
Greg and the team from Castle Construction have helped us with our home renovations for a couple of years now.
Recently we added a carport which for us, was a major project.
I am extremely happy with the finished job and the way it complements the look of the house.
Greg is most approachable and provides exceptional customer service. Nothing is too much trouble and any issues that arise, are dealt with promptly and to your total satisfaction.
I can recommend their workmanship and project management from start to finish.
I employed Castle Construction based on the positive reviews and the reasonable price quoted for the work. From the outset at the initial quoting I was impressed with Greg’s professionalism and attention to detail.
The quote provided was comprehensive and set out each stage of the work. I had a mezzanine floor and office constructed in my house along with an additional door fitted in the hallway. Greg’s team was punctual, professional and obviously took pride in their work. Throughout the process I was kept fully informed on progress. A couple of additions I required after work commenced presented no problems at all with a slight variation to the price.
Greg and his team always turned up on time and the whole process just seemed to be unobtrusive and completely under control. I am thrilled with the end product and would without hesitation recommend Greg and his team to anybody planning any sort of renovation work.
From the very beginning, Greg and the team at Castle Construction were extremely professional, punctual and polite. Everything was made clear before work started and quoted comprehensively. When the work started, it continued at a solid pace and with lots of communication.
The end result was to transform our old tired house into a modern, light and beautiful home. Any issues were resolved quickly and to our satisfaction. I can’t recommend Castle Construction enough!
Castle quoted promptly, explained the job clearly and provided friendly quality service
Can not recommend these guys enough! We are so pleased with the finished project (2nd story extension) & the project came in ahead of time & on budget. The communication from start to finish was great & Greg & Sam were a joy to work with. We will definitely use them for any further works.
My Wife & I had the good fortune to hire Greg Rice as the principle builder for our home in Broadbeach Waters. I myself am a plumber by trade, and it was an absolute pleasure to meet and work with a builder who was clearly a master of his trade. Although young in years, his quiet disposition and eye for detail made for a most pleasurable building process. Greg treats every project as though he himself is the client and he will never settle for second best. Our initial intention was to build the home and sell for a profit, but such is the quality of our home that we cannot bring ourselves to part with it.
My wife & I were particularly cautious about selecting our builder as we have had two quite bad experiences in the past. Greg & Sam proved to be every bit as professional as we were told. They managed our project and delivered us an excellent product on time and importantly on budget. We could not have been happier than our experience with Castle Construction Australia.
What to Expect During Your Granny Flat Construction
When you build a granny flat with Castle Construction, you get a smooth, stress-free process with all the approvals and nitty gritty details taken care of for you. With our team behind your build or extension, you receive premium craftsmanship, luxury finish and an end result that ticks every box. Here’s how.
All-Inclusive, Transparent Quotes
From the very start, our Gold Coast granny flat builders approach your project with complete transparency. It starts with an all-inclusive, transparent quote so you can budget accordingly for your new granny flat.
100% Guaranteed & Insured Work
We’re so confident in our work that we back it up with our 100% satisfaction guarantee. You’ll receive high-quality work, with high-end finishes that are functional, look good and last, with on-site and off-site management to see the project through from start to finish.
20+ Years of local Experience
Our owner, Greg, has been working on multi-million dollar projects his entire career. Spanning 30 years, this experience helps him guide our team to build granny flats that focus on quality, not quantity, so you get outstanding results.
Looking for a builder for a granny flat project with results that speak for themselves?
Look through some of our recent projects to see just how much attention to detail we put into every granny flat build.
Frequently Asked Questions About Building a Granny Flat on the Gold Coast
Do you need council approval for a granny flat on the Gold Coast?
Yes, you will need to acquire a mandatory building approval from a private building certifier for a second dwelling, also known as a granny flat, on the Gold Coast as the structure must meet the Building Code of Australia. Depending on the size and proximity to the main house, you may not need full development approval for a residential premises. An experienced granny flat builder on the Gold Coast can help confirm which approvals your granny flat build needs to go ahead.
How much does a granny flat cost in QLD?
The average granny flat in Queensland costs between $60,000 to $350,000+, depending on the size, layout and finishes. This includes potential costs for site preparation, approvals and council fees, the type of build, its complexity and any location-specific expenses. For example, a second storey addition or garage conversion to be used as a second dwelling would be differently priced than a freestanding granny flat.
Who is eligible for the granny flat grant in QLD?
The Queensland First Home Owner Grant currently covers building a detached dwelling built on a relative’s land, such as a granny flat, up to the value of $750,000 for eligible applicants. To be eligible, the applicant must not have previously received the grant in any state or territory of Australia, have previously owned a home and must move into the dwelling within 1 year of the completed transaction, and proceed to live there for 6 months. There are some other qualifying factors to consider. Visit the Queensland Revenue Office website for more information.
How many bedrooms can a granny flat have?
Most granny flats in Queensland have one or two bedrooms. This will typically fit within the 80 square meters requirements for standard second dwelling requirements through most Queensland councils. Larger granny flats can be built, however, a Development Application (DA) will need to be lodged to comply with the Building Code.
Do granny flats increase property value?
Many property valuers estimate a granny flat can increase a property’s value by at least 20% to 30%, particularly in markets with rental shortages. A high-end granny flat build can help make sure maximum value is achieved. Aside from the property value, many homeowners on the Gold Coast are building granny flats to accommodate family, lease privately or to make available as a holiday rental.