For UK Property Investors Using Bridging
UPA reads any property listing and models your bridging finance - interest, arrangement fees, holding costs and the real impact on your profit. See the true cost of your bridge before you sign, not after you've committed.
Calculate My Bridge Costs 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 deal looks profitable. You've modelled the purchase, the refurb, the resale. The bridge is just a line item - 0.65% per month, six months, sorted. But then the refurb runs two months long, the valuation comes in light, and you're into month eight before you exit. That 0.65% is now £14k you didn't budget for.
That's how bridging deals lose money. Not because the strategy is wrong, but because investors model the bridge as a flat line item instead of a living cost that grows every month you don't exit.
Your spreadsheet adds bridging as a single number. It doesn't model what happens when the holding period doubles.
Find a property on Rightmove, Zoopla, OnTheMarket or any property site.
UPA reads the listing and models your bridge interest, fees and holding costs.
Total bridge cost, monthly interest and the impact on your profit - all on the page.
The Part Other Bridge Calculators Skip
Any tool can tell you a bridge costs £8,400 over six months. The question that actually protects your money is: what happens when you're still in it at month nine?
With one click, UPA runs your deal through automatic sanity checks and downside scenarios, so you see the bridge cost and your profit at 100%, 90% and 85% of your end value - with the holding period that actually matters.
Same property. Which scenario are you underwriting to?
That's the difference between a bridged deal that works and one that eats you alive.
Calculate My Bridge Costs Free
↑ At 9 months and 90% value, profit drops to £8,200. Nearly gone.
Your bridge is only as trustworthy as the assumptions behind it. So UPA models the whole deal - interest, fees, holding costs and exit strategy - not just a monthly rate.

Monthly interest, arrangement fees, exit fees - totalled into the real cost of your bridge, not a flat line item.

Council tax, utilities, insurance, service charges - every month you hold the property, modelled into your real cost base.

Compare a resale exit against a refinance exit. See which one actually clears the bridge and leaves profit.
Total bridge cost. Interest, arrangement fees and exit fees for your full holding period.
Monthly interest modelling. See exactly what each month of delay costs you.
Holding costs included. Council tax, utilities, insurance - not forgotten.
Exit comparison. Resale vs refinance - which one clears the bridge?
Downside stress tests. Profit at 100%, 90% and 85% of end value.
Saved deals & exports. Keep a record of every bridged deal you model.
It's not a replacement for professional finance advice. It's the fastest way to decide whether the bridge actually stacks.
UPA is live with a founding cohort of UK property investors who are modelling bridging finance in seconds, not evenings.
Real testimonials from founding members coming soon. If you're an early user who caught a bridge cost with UPA, we'd love to hear your story.
We're UK developers and investors. We were modelling bridging as a flat line item - 0.65% a month, six months, done. And we still nearly lost a deal when the refurb ran long and the bridge quietly ate £12k we hadn't budgeted for.
So we built the tool we wished existed: open a listing, click once, and see the real bridge cost, the holding period risk, and the downside in one place.
Now we don't sign a bridge without modelling the holding period first. Neither should you.

Your first 48 hours are free. When you're ready for unlimited, lock in the founding price.
UPA Investor Pass
Unlimited bridge finance modelling 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.
None. You get 48 hours of complete bridge finance modelling, every feature, no card. If it earns its place, you upgrade.
Install free, model real bridge costs for 48 hours, and see the interest, the holding period and the downside - before you commit.
Calculate My Bridge Costs Free48 hours free · No card · ~30 seconds