For UK Property Investors
ROI Doesn't Matter If The Assumptions Are Wrong
UPA reads any property listing and stress-tests your ROI from every angle. Comparable sales, hidden costs, holding periods and downside scenarios - so your return on investment rests on evidence, not optimism. See the real ROI before you offer.
Calculate My ROI Free48 hours of free deal analyses · No card · Installs in ~30 seconds
Runs right on top of the listings you already use:
No new workflow. No exporting to a spreadsheet.
ROI Is Easy To Calculate And Easy To Lie With
Every spreadsheet can calculate ROI. Purchase price, refurb, end value, profit divided by cash in. The number looks great. But the number is fiction if the end value is optimistic, the refurb is £15k light, and the finance costs are understated.
That's how investors chase ROI numbers that don't exist. Not because they can't calculate ROI, but because they're calculating it on assumptions nobody challenged - across five tabs, under pressure, before someone else offers.
Your spreadsheet calculates the ROI. It doesn't challenge the assumptions behind it.
From Listing To Stress-Tested ROI In Under Two Minutes
Open any listing
Find a property on Rightmove, Zoopla, OnTheMarket or any property site.
Click Analyse Deal
UPA reads the listing and models the purchase, costs, exit and ROI.
Read the verdict
ROI at 100%, 90% and 85% of end value - with every cost included.
The Part Other ROI Calculators Skip
Most Calculators Show You ROI At The Best Case. UPA Shows You The Rest.
Any tool can tell you a deal returns 28% at the expected sale price. The question that actually protects your money is: what happens to your ROI when it doesn't sell for that?
With one click, UPA runs your deal through automatic sanity checks and downside scenarios, so you see your ROI at 100%, 90% and 85% of your end value before you commit a penny.
Same property. Which ROI are you underwriting to?
That's the difference between an ROI that looks good and one you actually understand.
Calculate My ROI Free↑ At 90% of end value, ROI drops to 4%. Still investing?
Every Cost. Every Comparable. Every Scenario. Into One ROI.
Your ROI is only as trustworthy as what feeds it. So UPA models the whole deal - costs, comparables, exit and downside - then calculates the return.
Every cost, not just the happy ones
Deposit, refurb, stamp duty, legals, bridging interest, JV money, selling fees - totalled into the real cash you need in, which drives your actual ROI.
Comparable sales, gathered for you
Nearby sold prices and £/sqm, scored for relevance, so your end value - and therefore your ROI - rests on evidence, not one optimistic comp.
Exit strategy, modelled both ways
Compare a flip exit against a refinance-and-hold. Your ROI changes depending on your strategy. See which one actually works.
What UPA Does On Every ROI Calculation
ROI at multiple scenarios. Your return at 100%, 90% and 85% of end value, not just the happy case.
Full cost modelling. SDLT, legals, finance, bridging, refurb, JV money, selling fees.
Comparable sales & rents. Evidence for your end value and yield, not a guess.
Exit comparison. Flip vs refinance - which strategy gives you the best return?
Cash required. Total cash in, so your ROI is on real money, not hypothetical.
Saved deals & exports. Keep a record of every ROI you model.
It's not a replacement for professional due diligence. It's the fastest way to decide whether the ROI is real or wishful.
Investors Are Stress-Testing ROI In Seconds, Not Evenings
UPA is live with a founding cohort of UK property investors who are stress-testing their ROI in seconds, not evenings.
Real testimonials from founding members coming soon. If you're an early user who caught a phantom ROI with UPA, we'd love to hear your story.
We Built This Because We Believed Phantom ROI Too
We're UK developers and investors. We were calculating ROI on spreadsheets - and we still nearly committed to deals where the ROI was fiction, propped up by optimistic end values and understated costs.
So we built the tool we wished existed: open a listing, click once, and see the ROI, the comparables and the downside in one place.
Now we don't offer on anything without stress-testing the ROI first. Neither should you.
Keep Stress-Testing Every ROI. Founding Investor Price.
Your first 48 hours are free. When you're ready for unlimited, lock in the founding price.
UPA Investor Pass
Unlimited ROI calculations for 12 months.
Total value £400+
£97 for 12 months
Founding Investor Price, locked while your membership stays active.
One payment for 12 months' access. It does not auto-charge. We'll remind you before it expires.
Founding price is for the first cohort of members. It rises for later ones.
The Risk Is Entirely On Us
Analyse 10 real deals in your first 14 days. If UPA doesn't catch at least one number you'd have gotten wrong on your own, email us for a full refund and keep your access anyway. The only way you lose is by guessing on your next deal without it.
Frequently Asked Questions
None. You get 48 hours of complete ROI calculations, every feature, no card. If it earns its place, you upgrade.
Your Next ROI Is On A Listing Right Now. Stress-Test It Before You Believe It.
Install free, calculate real ROI for 48 hours, and see the return, the comparables and the downside - before you commit.
Calculate My ROI Free48 hours free · No card · ~30 seconds