The first question almost everyone asks us is a fair one: what does a granny flat cost in Sydney? The honest answer is that it depends on your block and your finishes, but that does not mean we can leave you guessing. There are real, useful ranges, and this guide lays them out by size so you can sanity check any quote you get.
For a summary of granny flat pricing and to request a fixed quote, see our granny flat cost Sydney page.
We will go through the base build by studio, one-bedroom and two-bedroom, then the add-on costs that catch people out, and the two things in Sydney that push prices up more than anywhere else. Treat every figure as a 2026 guide. The only number that truly counts is a fixed quote on your site.
Here is where most finished Sydney granny flats sit. Across the board, a complete and finished build usually lands between about $120,000 and $300,000, with a base one or two-bedroom build coming in around $110,000 to $150,000. Per square metre you are looking at roughly $2,200 to $3,300 depending on spec.
A self-contained studio is the most affordable way in. Something like our Glebe 22 studio or the compact G-Mod 20 studio keeps the footprint small, which keeps the base build at the lower end of the range. Good for a home office, a teenager, or a simple rental.
A one-bedroom home gives you a proper separate bedroom and a bit more living space. Designs like the Avoca 60 with an alfresco or the Sea Breeze 40 sit in the middle of the range and tend to be the sweet spot for a single tenant or one parent.
Two bedrooms is the most popular choice and the one that rents best. A home like the Snow Gum 60 with an island bench and separate laundry or the Banksia 60 uses the full 60sqm allowance well. Expect this to be at the upper end of the base build range, with the final price set by your finishes.
The base build is only part of the picture. These are the extras that turn a build cost into a finished, livable home:
None of these are optional surprises if you plan for them up front. When we quote, we set them out clearly so you are not hit with a number you did not see coming.
Two things move a Sydney price more than anything else. The first is sandstone or rock under your block. If excavation hits rock, site preparation costs climb, because rock is slow and expensive to remove. The second is how far your services have to run to reach the sewer. A long run to the sewer connection point adds plumbing and trenching cost.
This is why two near-identical homes on two different streets can quote differently. It is not the home, it is the ground and the services. A site inspection sorts this out early so there are no nasty surprises later.
Building in a factory takes a lot of the cost risk out of a project. We build your home indoors in about 8 weeks, then transport and install it on site in roughly 2 days. There is far less time on site, fewer weather delays, and a controlled environment, which all helps keep the price tight and predictable.
It also means your backyard is only disrupted for a couple of days. If you want the full method behind our pricing, our build process page walks through it, and our FAQ page covers the common money questions.
Sydney sits at the higher end of NSW pricing, mainly because of land conditions, service runs and labour. If you want the broader state picture for comparison, read our NSW granny flat cost guide for 2026. The structure is the same, but Sydney's multipliers tend to push the total up.
A compact studio is usually the most affordable option, sitting at the lower end of the base build range. Keep in mind you still need site prep, service connections and certification on top.
Most often it comes down to rock or sandstone on your block, or a long run to the sewer. Both add cost that has nothing to do with the home itself.
The ranges here are a 2026 guide. We provide a fixed-price quote once we have looked at your site and your chosen inclusions, so you know the real number before you commit.
Want a real figure for your block instead of a range? Browse our granny flats and studios to pick a design, then contact our team for a fixed quote based on your site and finishes.
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