Who it's for
Three people in a deal. Three different questions.
Every property sale sits three people across a table — a buyer, an owner, and the agent between them — and until now each has been guessing at the numbers the others hold. SirJohn runs one audit and gives all three the same honest answer. Find the seat you're in.
Am I overpaying — and what isn't the listing telling me?
Foreign buyers routinely pay 54–64% over the local price. SirJohn hands you an independent fair-value estimate and the due diligence a local would quietly run before signing.
- A fair-price estimate with a confidence tier
- 25+ risk checks — legal, seismic, flood, AL — each sourced
- Hidden costs surfaced: IMI, condomínio, energy bills
How do I prove the price and close without the back-and-forth?
Complaints to IMPIC quadrupled in four years — clients now arrive braced to be sold to. Independent evidence turns “trust me” into “look at this.”
- Parish-level comparables, not district averages
- A shareable verdict a client reads in under a minute
- One neutral number that settles price disputes faster
What is my property actually worth today?
Prices are up 92% since 2019; incomes only 43%. The figure in your head is probably stale. See what the market supports now — and which upgrades move it most.
- A fair-value estimate built on 97 property features
- Exactly which features move the number, and by how much
- A neutral check against three conflicting agent pitches
Same numbers. Different angles. Same rigour.
The three pages above aren't three products. They're one audit, described from wherever you happen to be standing in the deal.
One model, three readings
The buyer, the owner, and the agent all look at the same hedonic estimate — trained on real Portuguese transactions. Nobody is negotiating against a number they can't see.
One neutral reference
Because every side starts from the same fair-value figure, a deal has a shared anchor instead of three conflicting guesses. That's what makes the conversation shorter.
One standard of honesty
Every page tells you where the data thins out. On atypical properties or very new listings you'll see a lower confidence tier — never a confident guess dressed up as fact.
Whichever seat you're in — start with the number.
Paste a listing or enter the details. The audit is the same; what you do with it is up to you.