For UK Property Investors
Never Overpay For Another Investment Property
UPA works backwards from your target ROI to calculate the highest offer you can make. Open any property listing, click once, and know your maximum offer before you pick up the phone. No spreadsheets, no guessing, no overpaying.
Calculate My Max Offer 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.
The Most Dangerous Number In Property Is The One You Guessed
You found a deal. The numbers look tight but workable. So you offer what feels right - maybe round it up a bit to secure it. And only later, deep in a spreadsheet, do you realise the refurb was £15k light, the end value was optimistic, and you overpaid by £12k before you even started.
That's how good investors lose money on good deals. Not because they're careless, but because they're working backwards from the asking price instead of forwards from the numbers that actually matter.
Most investors offer first and do the maths later. UPA flips that around.
From Listing To Maximum Offer 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 works backwards from your target ROI to your maximum offer.
Read the number
Your maximum offer, total cash required, and the downside - all on the page.
The Part Other Offer Calculators Skip
Your Maximum Offer Changes When The Market Does. UPA Shows You By How Much.
Any tool can tell you your maximum offer is £185,000 at the expected end value. The question that actually protects your money is: what happens to that number when the market moves against you?
With one click, UPA runs your deal through automatic sanity checks and downside scenarios, so you see your maximum offer at 100%, 90% and 85% of your end value before you commit a penny.
Same property. Which number are you offering?
That's the difference between a confident offer and a hopeful one.
Calculate My Max Offer Free
↑ At 90% of end value, your max offer drops by £12,600. Still confident?
Every Cost. Every Comparable. Every Exit. Into One Number.
Your maximum offer is only as trustworthy as what feeds it. So UPA models the whole deal - purchase costs, refurb, finance, comparables and exit strategy - then works backwards to the most you can pay.
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 directly drives your maximum offer.
Comparable evidence, gathered for you
Nearby sold prices and £/sqm, scored for relevance, so your end value - and therefore your maximum offer - rests on evidence, not one optimistic comp.
Exit strategy, modelled both ways
Compare a flip exit against a refinance-and-hold. Your maximum offer changes depending on your strategy. See which one actually works.
What UPA Does On Every Maximum Offer Calculation
Your maximum offer. The most you can pay and still hit your target ROI. Calculated, not guessed.
Target ROI input. Set your required return. UPA works backwards to the offer price.
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.
Downside stress tests. Your max offer at 100%, 90% and 85% of end value.
Saved deals & exports. Keep a record of every offer you model.
It's not a replacement for professional due diligence. It's the fastest way to decide what to offer before you pick up the phone.
Investors Are Calculating Offers In Seconds, Not Evenings
UPA is live with a founding cohort of UK property investors who are calculating their maximum offer in seconds, not evenings.
Real testimonials from founding members coming soon. If you're an early user who caught a bad number with UPA, we'd love to hear your story.
We Built This Because We Overpaid Too
We're UK developers and investors. We were analysing hundreds of deals a month, working backwards from the asking price instead of forwards from the numbers - and we still nearly overpaid on deals we thought stacked.
So we built the tool we wished existed: open a listing, click once, and see the maximum offer, the costs, and the downside in one place.
Now we don't offer on anything without calculating our max offer first. Neither should you.
Keep Calculating Every Maximum Offer. Founding Investor Price.
Your first 48 hours are free. When you're ready for unlimited, lock in the founding price.
UPA Investor Pass
Unlimited maximum offer 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 maximum offer calculations, every feature, no card. If it earns its place, you upgrade.
Your Next Offer Should Be Calculated, Not Guessed. See Your Max Offer In 60 Seconds.
Install free, calculate your maximum offer on real deals for 48 hours, and never overpay because you guessed.
Calculate My Max Offer Free48 hours free · No card · ~30 seconds