You have a concept you like, and you want to know what it would cost to build.
You have a concept you like and no firm sense of what it costs to build. Someone has told you a builder will look at it for nothing, which is usually true. How accurate are builder estimates? Accurate enough to be genuinely useful, once you know what you're reading.
At concept stage there's no engineer's slab, no site cut and no window schedule. A builder pricing that works from area, storeys, roof complexity and how hard the site looks. The number is honest — it's a bracket rather than a price, and a bracket is exactly what's useful now.
What an early check gives you is direction. It tells you whether you're close or a long way off, and those call for different conversations — both far easier while the concept is still ideas on paper. It's one of the most common conversations I have, and it nearly always ends with a project better matched to its budget.
The first real number is always better heard early, while the fix is still a conversation about the design.
An early price check puts a real number on the concept while the concept can still change. If the scope needs adjusting, it gets adjusted in a design conversation rather than after a full set of drawings exists.
The first real evidence that this is possible. Until a builder puts a number on it, the project lives in your head. This is where it becomes something you can act on — with plenty of room to act.
You can take a concept straight to tender and find out the price at the end. Plenty of people do, and on simple work it's fine. On anything larger you're carrying the risk that the first real number arrives after the drawings are finished.
I'll usually bring in a builder I trust for an early price check while the concept can still change. Knowing which builders price this kind of work honestly accumulates over years of working alongside them, and it's one of the more useful things I can lend you. If the number comes back above your budget we have real options — reduce the scope, stage the work, lift the budget — and we have them while changing the design is still just a conversation.
Treat an early number as a bracket, not a price. A builder looking at a concept estimates from area, storeys, roof complexity and how hard the site looks. What moves it later is everything still to be decided — footings, site access, retaining, drainage, selections. Its value is the size of the gap it shows you, not the decimal places.
Often not. On a straightforward house renovation, a builder's early check and an architect who sees current Brisbane prices will get you close enough to decide well. A quantity surveyor earns their fee when a project is large, structurally unusual, staged, or when a lender wants a formal cost plan. Ask me whether yours is one of those.
Most will, and many are genuinely good at it. It's quick work done in goodwill, so read it for direction rather than precision. What it assumes about site access, demolition and site works matters as much as the total does — and those are the questions I'll ask on your behalf.
Say so plainly at the outset: you're testing the budget, not awarding the job. Good builders are entirely comfortable with that. Some charge a modest fee for a considered estimate, and I'd rather pay it than take a free number nobody really looked at. Keep the relationship warm — you may well come back to them.
Four options, and it helps to name them: reduce the scope, lift the budget, stage the work, or wait until the timing suits. Staging is underrated here — do the structure and services while the walls are open. The renovation you want and the budget you have right now aren't always the same thing. That's not a failure, it's reality.
If you would rather start small, the First Sketch Session is two hours at your place. You keep the sketches, and there is no obligation afterwards.
