A house building cost calculator that measures your floor plan

Updated 22 October 2026 · ResiQuote

Most building cost calculators multiply a floor area by a square-metre rate. ResiQuote measures the rooms, walls, roof and joinery drawn on your own plan and prices each category at indicative Australian rates, so the free cost range reflects your home, not an average one.

Why a square-metre rate is not enough

A square-metre rate treats every home as the same home. Two plans of the same floor area can differ by tens of thousands of dollars once you count the wet areas, the length of external wall, the roof shape and the joinery drawn on them. ResiQuote starts from the drawing instead: it extracts room areas, wall lengths, roof area and fixtures, then applies construction rates category by category.

What you get for free

The free result is a build cost range measured from your plan, shown for a Standard (volume builder) and a Premium (custom builder) specification. No card is required and there is no obligation to upgrade.

What the full estimate adds

The full itemised estimate ($299, one-off) breaks the build into eleven categories, from design and approvals through slab, walls, roof, windows, services, kitchen, bathrooms, doors and floor coverings, with a PDF report you can take to your builder. There is a 14-day full refund if it is not what you expected.

Get your free cost range

Questions

How long does the free cost range take?
A few minutes from upload. The software reads the plan, measures it and prices the categories while you wait.
What do I need to upload?
Your floor plan as a PDF or image. Working drawings give the clearest detail, but you can start with the plan you have.
Is the result a quote?
No. It is an indicative construction estimate measured from the plan, to help you assess your budget before you commit. Your builder's contract price will depend on the site, specifications and final scope.

Your plan, measured

Upload your floor plan for a free build cost range measured from your own drawing. No card required.

Get your free cost range