Investment
Pricing with clarity & confidence.
It's the question we're asked most. The truth is no two custom homes are the same — so pricing shouldn't be guessed. We don't guess. We price with precision.
Cost-per-square-metre estimates are how budget blowouts begin. Instead, we use a proven pricing process built on detailed analysis of your actual home — protecting your investment and giving you a number you can trust.
Open-book means exactly that. Every labour, material, subcontractor, allowance and margin line is documented and visible to you — from the first estimate to the final claim. You see where every dollar goes, and every change is priced and approved in writing before work proceeds. It starts before you've committed to anything: The Perfect Estimate — our estimating method built on $20M+ of back-costed homes — prepares a detailed feasibility within 10% of your real build cost, in 48 hours.
When it comes to structuring your build, we offer two clear contract options — and we explain both in full at a Contract Education Session before anything is signed.
Fixed Price Contract
Best for financed projects
- —Built-in contingency (typically 2–4%)
- —Monthly progress claims
- —Predictable, bank-friendly cash flow
- —Certainty from day one
Cost Plus Contract
Best for cash-funded projects
- —No contingency loading
- —Full, line-by-line cost visibility
- —Greater flexibility through the build
- —Transparency at every stage
Open-book, shown
Most builders give you one number. We show you all of them.
Every Zanetto estimate is broken into 90+ costed categories — our own labour, materials and suppliers, and each subcontract trade. Here's a look at what that openness actually means:
Zanetto labour
Materials & suppliers
Subcontract trades
Even our margin
Our target margin is 10%, and we publish it. Open-book means you see everything — including what we make. It's the number most builders won't say out loud.
The whole picture
Two quotes per subcontract trade, into an open, negotiated tender. Every material quantified from a 3D model of your home; every labour rate back-costed from real completed builds.
Representative excerpt from a real detailed estimate — client and project details removed, figures rounded. Every Zanetto client receives their own estimate in full, line by line.
Want the full picture on build costs in Tasmania? Read the2026 Cost Guideor run thePassivhaus savings calculator.
Want a precise number for your home?
Start your project and our estimating team will prepare your 48-hour feasibility.
Start Your Project