Write the brief before you look at a single builder
Most people start by wandering through display villages. That is the hardest way to choose, because you are comparing houses you did not ask for, built by companies you have not tested.
Start with a one-page brief instead: where the block is, what you want to build, how many bedrooms and bathrooms, your realistic budget, and when you want to be in. Every builder you speak to should get the same brief, so their answers are comparable.
Shortlist on fit, not on the lowest price
A builder who only does project homes will frustrate you on a tricky block. A custom builder will be more than you need for a straightforward build. Look for evidence they have built what you are asking for, near where you are building.
- Do they build in your state, and in your price range?
- Have they completed homes like yours — same size, same style, same site conditions?
- Do they handle your build type: new home, knock-down rebuild, renovation, or small and tiny homes?
- How long have they been trading, and under the same company name?
Check the licence, insurance and ABN
Every Australian state and territory licenses residential builders, and most have a public register you can search by name or licence number. Confirm the licence is current and covers the value of your work.
Ask for proof of public liability insurance and, where your state requires it, home building compensation or warranty cover. A builder who hesitates about showing you these documents is telling you something.
You can check an ABN for free on the Australian Business Register. If the ABN is registered to a different entity name than the one on your quote, ask why before you sign.
Ask for references you can actually visit
A phone number of a happy client is worth something. A house you can walk through, built by the same crew, is worth more.
Ask what went wrong on their last build and how the builder handled it. Every build has problems; the answer tells you what your problems will feel like.
Compare quotes like for like
Two quotes a hundred thousand apart are rarely for the same house. Before you choose, put them side by side and check the inclusions schedule, the allowances, the exclusions, and the assumed site costs.
If one quote is far lower, the difference is usually in what is not included: site works, higher ceilings, better fixtures, or a longer timeframe. Ask each builder to price the same list of items so the comparison is honest.