We provide a free Opinion of Probable Cost for any property or plot you’re marketing – so your buyers have the build cost confidence to move forward, and you close more sales.
Your buyers want to say yes. Build cost uncertainty is what stops them.
When a buyer views a property that needs significant work, or a plot with planning permission to build, they almost always ask the same question: “What would it actually cost?”
Without a credible answer, deals stall. Buyers hesitate. Some walk away entirely, not because they can’t afford it, but because they can’t see clearly what they’re committing to.
We fix that. Quickly, professionally and at no cost to you or your buyer.
A Free Opinion of Probable Cost. For any listing you refer.
Realistic Build Cost Range
A professional cost indication based on the property or plot, scope of works and local market rates — not a guess, not a national average. A number your buyer can actually rely on.
Headline Programme
An honest view on how long the build or renovation would take, so buyers can plan their move and financing with confidence.
No Obligation
The OPC is completely free at the enquiry stage. Your buyer doesn’t commit to anything. If they want to go further, we offer a full feasibility study at a reduced rate for estate agent referrals.
Simple. Fast. No paperwork on your end.
01
Refer the Enquiry
Fill in the form below with the property address and a brief description of what the buyer has in mind. That’s all we need to get started.
02
We Produce the OPC
Within 2–3 working days we’ll have a professional Opinion of Probable Cost ready — a clear document your buyer can read and understand.
03
Your Buyer Moves Forward
We send the OPC directly, or back through you — whatever works best. Your buyer now has the information they needed. You close the sale.
Bespoke Home Build Case Studies
Refer a property. We'll have an OPC back to you within 48–72 hours.
We’ll be in touch within one working day to confirm receipt. The OPC itself is typically ready within 48–72 hours. No obligation, no charge.
About Mosaic Bespoke
Mosaic Bespoke is a bespoke residential construction company based in St Albans, working across Hertfordshire and the Home Counties. We specialise in new builds, extensions and renovations for private clients — and we’ve been providing estate agents with early-stage build cost support for years. We work with a small number of clients at a time so every project gets proper attention.