About
About YieldLens UK
Independent commercial rent and lease viability decision-support. YieldLens UK helps operators pressure-test whether a commercial site can carry the rent before they sign. It is aimed at early-stage screening, not final professional advice.
Need help with the product, access after payment, or privacy? Use the contact page.
YieldLens UK provides indicative decision-support only. It is not a valuation, financial advice, mortgage advice, legal advice, tax advice, or a substitute for professional due diligence.
In one line
It helps you see whether the lease can survive the rent, cash stack, and weaker trading before you commit.
What it focuses on
- Rent burden and break-even pressure
- Opening cash and downside trading
- Lease questions before signing
Why it exists
A good-looking unit can still be expensive before it proves itself.
Commercial leases can become hard to unwind once rent, fit-out, deposit, legal costs, stock, staffing, utilities, and a weak opening period are all in play.
Who it is for
Built for operators making an expensive lease decision.
The site is aimed at people who need a practical check before they sign, not a broad property audience.
What it tests
The checks that matter before the lease becomes a commitment.
YieldLens focuses on the parts of the decision that most often create pressure after the rent is agreed.
Rent burden
Shows whether the rent still leaves room for staff, stock, utilities, and quieter early trade.
Break-even customers
Turns the cost stack into a daily target so the trade requirement is easier to challenge.
Opening cash pressure
Shows whether fit-out, deposit, fees, stock, and launch costs leave enough breathing room.
Downside trading
Checks what happens if the opening period is slower or weaker than planned.
Six-month survival
Shows whether the business can absorb a weak start without the lease becoming too heavy.
Lease questions
Highlights the clauses and evidence gaps that should be checked before commitment.
What it does not do
The limits are deliberate.
The tool is there to support an early decision, not to replace the work that closes the deal.
How the product works
A short path from free check to decision memo.
The flow is intentionally simple so the numbers can be reviewed without extra noise.
Step 1
Run the free commercial check
Enter the rent, revenue, cost, opening cash, and downside assumptions for the site.
Step 2
Review the viability snapshot
Use the result to see where the pressure sits before the lease becomes harder to unwind.
Step 3
Unlock the Standard file if needed
Turn the same result into a decision memo for negotiation, evidence checking, and lease questions.
Step 4
Use the memo to challenge assumptions
Check whether the rent, opening buffer, and downside risk still look workable once the lease terms are added.
Trust principle
Assumption-led, not black-box certainty.
The output depends on the assumptions entered. Its value is in making rent, costs, cash buffer, and downside pressure visible enough to challenge.
Founder note
Built by Sam Carlon.
Founder-led commercial decision-support built around transparent assumptions, structured downside testing, and clear professional boundaries.
YieldLens UK was built by Sam Carlon to make commercial lease assumptions easier to challenge before operators commit to rent, fit-out, deposit, and legal costs.
Sam is currently studying MSc Real Estate Economics & Finance at the London School of Economics on a RICS-accredited programme.
YieldLens UK is independent of property sales, rent collection, and lending. The product is deliberately assumption-led and is designed to pressure-test the commercial case for a site rather than replace professional legal, accounting, surveying, or valuation advice.
The focus is on rent burden, opening cash, break-even pressure, and downside scenarios, so the next conversation is more grounded.
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