Tradie Profile

The Granny Flat Experts

4.6 (36 reviews)

Castle Hill, NSW

About this business

The Granny Flat Experts design, obtain approvals for, and construct custom granny flats across Sydney, offering end-to-end services from free property assessments to fixed-price tenders. As a local, family-owned team they provide direct service with no middlemen, emphasising clear communication, council-compliant builds, and personalised project management.

Get in touch

Visit websiteCall 0468 016 220

Service areas

Servicing Castle Hill and surrounding locations.

  • Castle Hill

See what local homeowners are saying

  • MAMamantam S7 Oct 2025

    I recently built my 2 bedroom granny flat in Blacktown with the Granny Flat Experts, and I find the team very efficient, accommodating, and carrying quality conscious approach in work. They use high q...

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    I recently built my 2 bedroom granny flat in Blacktown with the Granny Flat Experts, and I find the team very efficient, accommodating, and carrying quality conscious approach in work. They use high quality products, have a great planning and design team with phenomenal customer-oriented approach that I could rely upon. They were quite accommodative of my requirements at every stage, and listened to me as a customer. George has been a remarkable person to work with, very patient and supported me for any consideration during the entire phase of the project. Taylor and Peter have also been excellent resources to rely upon the project. Overall, I find the team at Granny Flat Experts and the company to be honest, efficient, ethical, customer-centric, quality- focused, and reasonable priced without compromising the standards. All my friends who visited my place have admired the built quality and the look and feel of the Granny flat. I definitely recommend George and the team for any Granny flat projects and they are truly Experts in the field, as the name says.

  • ODOwen D4 July 2025

    If you're planning to build a granny flat, I highly recommend The Granny Flat Experts! Best price, best team, and top-quality results! I contacted around 10 granny flat builders across NSW, and finall...

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    If you're planning to build a granny flat, I highly recommend The Granny Flat Experts! Best price, best team, and top-quality results! I contacted around 10 granny flat builders across NSW, and finally chose George because of his patience, approachability, and proactive attitude in solving our concerns. He offered a highly competitive quote while ensuring the highest quality of construction. As the Managing Director of the company, George is extremely experienced. Our backyard had many challenges and was not an easy site for building a granny flat, but he came up with practical solutions and helped us overcome every issue. He also helped us redesign the layout to better suit our needs and made smart suggestions for improving the existing plans. His building team worked efficiently and paid great attention to detail. They completed our granny flat in just a few months as promised in the contract, with no delays and excellent workmanship. If you’re looking to build a granny flat, The Granny Flat Experts is a name you can trust — best price, best quality, and total peace of mind!

  • ACA-M C4 Aug 2025

    We recently had the pleasure of working with The Granny Flat Experts for the construction of our two bedroom brick granny flat. From our initial meeting with George at the site visit, through to the d...

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    We recently had the pleasure of working with The Granny Flat Experts for the construction of our two bedroom brick granny flat. From our initial meeting with George at the site visit, through to the design planning, the contract, the payment plan and the handing over of the newly built granny flat, we were very happy with him, his team and the process. The all inclusive price for the build and the appliances was competitive, reasonable and affordable. The progress payment schedule was clear with no hidden costs. George and his team at The Granny Flat Experts take great pride in their work, which showed in their professionalism, communication, efficiency, workmanship and quality materials. A special mention and thank you to Taylor, our Project Manager. Taylor was lovely and amazing to work with. She was always ready to answer our questions, follow through with any concerns and working towards a solution to suit both parties. We would not hesitate to recommend The Granny Flat Experts to family, friends or anyone planning to build a granny flat. Thank you George, Taylor and team at The Granny Flat Experts. Corinne & Tony

  • PAPrabhu A10 June 2025

    Kudos to Team Granny Flat Experts. George and his team has handled the whole phase from design, planning until execution to hand over in a very professional way. There were no flaws in the whole proje...

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    Kudos to Team Granny Flat Experts. George and his team has handled the whole phase from design, planning until execution to hand over in a very professional way. There were no flaws in the whole project it has been handled very well. I personally feel they have very good experience of handling the projects and have kept their word in delivering what was promised as per contract. They also educate and guide us throughout the process. I have and would strongly recommend them to my friends. All the best team ..

  • JLJe L4 Aug 2025

    I had the best experienced with granny flat experts. George and his staffs were very professional and very helpful. The work is very clean and used quality materials. They finished early than discusse...

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    I had the best experienced with granny flat experts. George and his staffs were very professional and very helpful. The work is very clean and used quality materials. They finished early than discussed date. They come back to check everything is fine. Highly recommended to everyone. Im Very happy overall

  • SHSang C29 Oct 2024

    The Granny Flat Expert built a beautiful two-bedroom granny flat for us in the hills area. The process was smooth and any questions or concerns we had were promptly addressed. They were great at custo...

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    The Granny Flat Expert built a beautiful two-bedroom granny flat for us in the hills area. The process was smooth and any questions or concerns we had were promptly addressed. They were great at customizing the design to suit our preferences. Even after construction was completed, the team provided excellent support, quickly taking care of minor issues. The quality of the build is excellent and we’re very satisfied with quality of appliances included. I highly recommend The Granny Flat Expert for anyone considering a granny flat project. Thanks to George, Taylor and the team for all your hard work!

Frequently asked questions

How much do builders typically charge?
Builder costs vary widely depending on the job type and complexity. Minor repairs are generally much less than extensions, small builds or structural alterations that need foundations, framing or specialist input. Most quotes include a call‑out fee plus labour and materials, and the page shows live pricing to help you compare options.
Do builders charge call-out fees?
Call‑out fees are common and typically cover travel and an initial inspection or assessment. This fee is usually separate from hourly labour and materials, and after‑hours or weekend attendance often attracts higher rates. Ask whether a call‑out or minimum charge applies when requesting quotes.
Do builders need a licence in Australia?
Yes. Building work generally needs to be carried out by a licensed builder in every state and territory, and NSW builders are regulated by NSW Fair Trading. Builders should be able to provide their state builder/contractor licence number and show appropriate insurances and ABN/GST registration. In Victoria, domestic building insurance is required above a state threshold for certain contracts.
How do I get a quote from The Granny Flat Experts?
The Granny Flat Experts lists phone or through their website on this profile, so you can contact them directly for pricing and availability. Share a short scope and photos to get a faster quote.
What areas does The Granny Flat Experts service?
The Granny Flat Experts services Castle Hill and surrounds. Contact them to confirm service areas.
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