Do you feel as though a second source of income would benefit you? Would your family benefit from the additional space created by a modern Fixed Price Granny Flat? We can confidently say our wide range of beautiful Granny Flat designs will redefine what you may have thought could be achieved, through innovative use of space and the latest advances in environmentally friendly building solutions.

  • Classic & custom designs Fixed Price Granny Flats Services


    Your Granny Flat does not need to be a basic tack on just because it’s out the back. Whether taken from our range of plans or custom designed our focus is on building you a granny flat with all the trappings of home.

  • Preliminary Approvals Package Fixed Price Granny Flats Services


    Our clear, transparent Preliminary Approval Package, inclusive of a full site evaluation, building approvals and site costs, delivers you Sydney’s only Fixed Price Granny Flat. Completed prior to contracts, there is no fear or uncertainty around costly budget blowouts.

  • 7-star-luxury-granny-flats Fixed Price Granny Flats Services


    At Fixed Price Granny Flats we not only stay up to date with the latest changes in the residential building industry, we also strive to pave the way to deliver Energy Efficient Green options. We are the leaders in innovation and are excited and passionate about the latest developments in Green Living.


Stay up to date with everything we are doing at Fixed Price Granny Flats as seen on our Instagram.


We’re different. And we don’t hide it. It’s in our name. At Fixed Price Granny Flats you pay one price and one price only. Our fixed price contract even includes an unbeatable 10 Year Structural Guarantee unmatched in the Granny Flat building industry.


    Building your Granny Flat won’t be farmed out to an independent builder because we are the builder, fully licenced and accountable from concept to completion.


    Integrity and transparency are the core qualities and beliefs we hold. Integrity means adhering to moral and ethical principles and not wavering from this belief. Transparency is being open in communication and accountable to our clients. It means being big enough to accept both criticism and praise and responding to both. We do not believe in gradual commitment.


    Building a Granny Flat on your existing property can provide an exceptional rental yield. With Granny Flat rental prices up to $650 per week, and sometimes more, a Granny Flat is an outstanding source of additional income.


  • “I engaged Greg Messer from Fixed Price Granny Flats to build us a 60 square metre Granny Flat, which is now complete and we are very, very happy with the end result. The roofing is excellent, the timber treated frame complete with brick veneer finish. We are very happy with the end result and have no hesitation in recommending Fixed Price Granny Flats for any of your future projects in relation to Granny Flats or any other building work.”

    Leonard & Swaanee Smith, Castle Hill
  • "The overall experience was excellent from the start. One of the key considerations I was looking at was the ability of the Contractor to deliver the project on our very steep site. Greg and his team delivered on this and on price. The trades were excellent, handling considerable challenges in a transparent and collaborative way. I will be referring friends and family to Greg and the team.”

    Ezio Di Giovanni, Denistone
  • "The experience we had was a great experience. We wanted an attached Granny Flat that matched our house and did not look like an addition, but looked like it was always there. Greg and the boys did an incredible job in making sure that it all matched up and connected well. Our neighbours walk past here every day and say how awesome the place looks. Their service was amazing and we are very happy customers.”

    John Iuliano, Oxford Falls
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