Granny Flat Solutions

Business Details

41 Years

experience

Award-Winning Granny Flat Builders in Sydney

Granny Flat Solutions is a family-owned Australian business with over 40 years of experience in designing and constructing award-winning granny flats. Our dedicated team specialises in creating high-quality, customised living spaces tailored to diverse needs, including multi-generational living, investment properties, and accessible housing. We prioritise customer satisfaction through transparent communication, risk-free processes, and a commitment to excellence, as evidenced by our 15+ Master Builders Association Awards.

Operating across Sydney, the Illawarra, Central Coast, and Hunter Region, we guide clients through every stepfrom site assessment to final constructionwith a focus on innovation, affordability, and sustainability. Our industry-leading service and partnerships with reputable contractors ensure every project meets the highest standards of craftsmanship and client expectations.

Services

Granny Flats Custom Designs Eco-Friendly Flats Accessible Housing Smart Homes

Details

Year established: 1985

Highlights and features

We offer 40+ years of expertise in granny flat design and construction.
Our custom solutions cater to unique blocks and special accessibility needs.
We guarantee faster turnarounds with approvals in as little as 26 weeks.
We are the only multi-award-winning company with 15+ Master Builders Association Awards.
Our team provides transparent pricing and risk-free contracts with no hidden fees.

What people say

Exceptional service Award-winning quality Light-filled practical design Fast approvals Dedicated team

Website

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Services

Granny Flats

We design and build custom granny flats tailored to your property and lifestyle needs. These structures provide flexible living spaces for family members, rental income opportunities, or home offices. Our team ensures compliance with local regulations while maximising functionality and aesthetic appeal across Sydney, Illawarra, and the Central Coast regions.

Custom Designs

Our custom design service creates unique granny flats suited to challenging blocks or specific requirements. From eco-friendly builds to accessible homes for disabled residents, we collaborate closely with clients to deliver innovative solutions. This includes site-specific adjustments and premium finishes that align with individual preferences and budget constraints.

Eco Granny Flats

Eco granny flats incorporate energy-efficient materials and technologies to reduce environmental impact. Features include solar-ready infrastructure, insulation upgrades, and water-saving fixtures. These sustainable designs maintain cost-effectiveness without compromising quality, appealing to environmentally conscious homeowners seeking long-term savings and reduced carbon footprints.

Accessible Granny Flats

Designed for elderly or disabled residents, these flats feature wide doorways, non-slip flooring, and safety railings. Our team integrates smart home technology for added convenience while ensuring compliance with accessibility standards. These purpose-built spaces promote independence and comfort for individuals requiring specialised living environments.

Smart Homes

Our smart granny flats include automated systems for lighting, security, and climate control. These technology-driven solutions enhance convenience and energy efficiency through remote management via mobile devices. The integration of modern conveniences ensures residents enjoy contemporary comforts while maintaining ease of use for all age groups.

People

Michael Antoun

Co-Founder

With over 40 years in the industry, Michael co-founded Granny Flat Solutions to address growing demand for quality secondary dwellings. He oversees design innovation and client relations, ensuring every project meets rigorous standards. His leadership has earned the company 15+ Master Builders Association Awards.

Questions

What can I use a granny flat for?

Granny flats serve multiple purposes: housing family members, generating rental income, downsizing, or creating home offices. They also accommodate special needs with accessible designs.

How long does approval take?

Approvals typically take 26 weeks under Complying Development Certificates. Complex cases requiring Development Applications may take longer, depending on council processing times.

Do I need council approval?

Most compliant blocks use private certifiers via CDCs. Non-compliant sites require council DA submissions, which we handle entirely on your behalf as part of our service.

Can I customise designs?

Yes—we offer full customisation for unique blocks, accessibility needs, or specific style preferences beyond our standard designer range options.

What areas do you service?

We operate across Sydney, Illawarra, Central Coast, and Hunter regions with local display centres in Waitara and Wollongong.

Are financing options available?

We don't offer direct financing, but we provide detailed quotes to help secure construction loans or investment funding through your preferred financial institution.

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Reviews (7)

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William Shen

Dec 28, 2021 Report

Granny Flat Solutions recently built a 2 bedroom granny flat for my investment property. The whole process from sales to design and then construction was smooth and professional - I am very happy with the final result!
James, the sales representative, was very knowledgeable and came to do a site inspection and provided a detailed quote very promptly.
Tony and Matt, our project managers, were always very responsive to our emails and calls and kept us updated with the whole project. They made sure that any minor issues were quickly resolved and sent us weekly updates. GFS made sure to push the

Mehdi Hakami

Dec 14, 2021 Report

Five years ago, we had decided to build a granny flat in our back yard, visited few granny flat builders around the greater Sydney but couldnt find the right builder. This year a friend introduced Granny Flat Solutions. The management and staff warmly supported us from day one, signed the contract, stated the work and despite all obstacles and restriction caused by Covid 19 pandemic, completed it timely. Though they are a big builder with many projects, their approach is like a family business it is personal and specific. The top managers, project managers, subies, internal architect, technical

Lawrie See

Nov 17, 2021 Report

I chose Granny Flat Solutions to build an extension/addition to my existing house plus an attached granny flat, just because of the companys good reputation, being a multi-awarded company and the excellent reviews by their customers. I was not disappointed because they delivered on their promise, rightly deserving of awards! The project was completed almost hassle free, from the design right through the construction process, up to the handover, they were right on schedule except for a few weeks delay because of COVID. I am so pleased with the completed project, proudly showing it to my friends

Tim Gavan

Nov 04, 2021 Report

Granny Flat Solutions were great! I got them to build a granny flat that worked out so well, a year later I got them to build another. I found them professional and punctual. Highly recommend them for design and build of your Granny Flat.

Steph Bowen

Oct 20, 2021 Report

6 stars! GFS built us a superior quality granny flat at an affordable price. Our independent building inspector viewed at prelining and PC stages and was super impressed with the workmanship. Shout out to Neil that designed a beautiful and unique granny flat that found cost effective ways to deal with a sloping block. Sean our PM was in regular contact with us and gave really thorough updates with photos of the site. He did a great job at also keeping our tenant in the main house informed who stayed for the duration of the build. Joseph was fantastic with helping with the bank on any financing

Simone Gigg

Oct 15, 2021 Report

I would highly recommend Granny Flat solutions. They built a granny flat for us and the whole team from the sales person, designer, project manager, office team, trades and owners were fantastic and very professional. The finished product is excellent. They manage the whole process for you with council etc and they let you know of all costs upfront so you are prepared for council fees and other extras. Even with COVID shutting construction down for a couple of weeks they kept us updated and then the trades were back as soon as they could be. If you are thinking of building a granny flat this is

Rae Kent

Oct 08, 2021 Report

Granny flat solutions built me a great Granny flat on a difficult terraced block. My designer Neil did a great job to make it fit on the block and yet be functional and stylish.My project manager Pierre was great ,always one step ahead and in tune through a difficult time with covid temporarily shutting the industry down.I was particularly impressed with how fast things got up and running again when construction resumed.The brick work and painting were exceptional and puts our main dwelling to shame! Its probably why they have won so many awards.Despite their excellence they were not the most