Website
Business Details
We have delivered premium granny flat construction across Sydney for over 20 years. Our in-house team of skilled professionals shares a deep passion for designing and building functional, high-quality living spaces. We specialise in custom luxury granny flats and duplexes tailored to each client's unique needs. Our award-winning designs merge style, functionality, and durability to unlock your property's full potential. We provide end-to-end services covering custom design, approval management, and expert construction. Every project receives meticulous attention to detail from initial consultation through to final handover.

We include free kitchen, bathroom, comfort, and site upgrades in every package as standard. Our 180-day maintenance period doubles the industry standard, demonstrating our commitment to quality. We handle all regulatory paperwork and council approvals to ensure a smooth, compliant process. Client testimonials consistently highlight our transparent communication, on-time delivery, and stress-free experience. We build timeless, thoughtfully designed spaces that stand the test of time and exceed Australian standards. Our mission is to elevate lifestyles through exceptional craftsmanship and unwavering professional integrity.
Highlights and features
  • We deliver 20 years of award-winning granny flat expertise.
  • Our in-house team ensures meticulous construction quality.
  • We provide a 180-day maintenance period, double standard.
  • Our free upgrades include kitchen, bathroom and site improvements.
  • We manage all approvals for seamless regulatory compliance.
Services
Design & Architecture
We create custom granny flat designs that maximise space and reflect your personal style. Our architectural team ensures functionality and aesthetic appeal for homeowners seeking tailored living solutions. Every design undergoes rigorous planning to meet your unique needs and site requirements.
Approval Process
Our team manages all paperwork and council approvals to ensure full compliance with local regulations. We navigate complex planning requirements and liaise with authorities for a smooth, stress-free process. This comprehensive service saves you significant time and eliminates approval uncertainties for homeowners.
Construction
Our expert builders use quality materials to construct your granny flat to the highest standards. We oversee every construction phase with meticulous attention to detail, ensuring durability and superior craftsmanship. The result is a high-quality, move-in ready dwelling that exceeds Australian building standards.
Videos
Reviews (7)
Liz S.
Jan 12, 2022 Report
BEWARE!!! I would like to warn the public about how BAD communication Master Granny Flats has with their clients. I personally thought this company would be good to use after meeting up with Denny who is a great sales person. But after signing up, paying the deposit and leaving it into their hands to get the ball rolling on our project. They actually looked at our project and decided it was too hard to go to council with it as they feared rejection after some of their other clients projects were rejected with the same council and the worst part was that they didn't even tell me this at the time
Nuray B.
Dec 30, 2021 Report
Master Granny Flats built our granny flat and we recently had handover. We are very happy with our gf. We would like to thank Robert and his entire team (from sales to design to construction) who were very friendly, easy to communicate with and very professional. Any questions or problems we encountered were promptly dealt with. In particular, Robert came on-site a few times in order to deal with an issue with sewerage which was dealt with in a professional manner. A special thank you to Thomas, our sales person, who happily organised viewing of recently built granny flats, which made our
Joy Tran
Oct 21, 2021 Report
Positive:Professionalism,Responsiveness
Our project is still at the early stages but so far Denny and Stephanie have been excellent. They have been very attentive and responsive with our enquiries. Can't fault their clear communication and professionalism. I look forward to seeing the finished product in the coming months.
Mizanur Rahman
Oct 14, 2021 Report
Miz Rahman
Oct 18, 2021
Master Granny Flat (MGE) has recently built a granny flat for us. I just want to say a quick thanks to entire team of MGF for their excellent work in building this flat. All the staff from sale, design, accounts and project implementation were very friendly, supportive and provided a great customer service to us. We had some minor issues along the way though, but all were resolved with their support and help. George Bou Serhal who was engaged as a project manager for this project was absolutely awesome - he was extremely responsive and very helpful on all occasion. Thanks
William Cen
May 22, 2021 Report
Master Granny Flat has recently completed our granny flat and I'm very happy with quality. Robert and his team was very professional. Denny (salesman) explained the terms and conditions of the contract , and the building process very clearly. Henry (project manager) was very professional and was very patient with our questions and concern. Overall, im very happy with the results and i would recommend master granny flat for anyone. I will definitely use their services again for future home projects.
Joseph Portelli
Feb 09, 2021 Report
Master Granny Flats built my Granny flat close to four years ago. I was very happy with the construction. Their service and care after the job was completed is also very professional and quick. I have had a couple small issues which have occurred a year or two after the initial completion. The company was very quick to repair the issue under the warranty. Very happy with their overall service and communication.
Patrick Wang
Jan 24, 2020 Report
I contacted three granny flat builders before engaging Master Granny Flats to build our granny flat, and I am very pleased with the result. The whole team is very professional and reliable and their contractors also did excellent jobs, particularly the bricklayers. The building process went smoothly as scheduled. Thank you Robert, the owner, a true gentleman, who stepped in whenever needed; thank you Thomas, who always patiently explained everything we raised with him; thank you Lin for your help; and thank you Nick, the project manager, for the professional work you did in managing the building