Commercial rent and lease viability
Can this commercial site carry the rent before I sign?
Free commercial check first. Optional £49 Standard Commercial Viability File if the site deserves deeper scrutiny.
YieldLens UK helps users pressure-test commercial rent, opening cash, break-even pressure, and downside trading before deciding whether a site is worth taking further.
No account required. Takes around 2 minutes. Sample available before payment.
Who it is for
Carlon Analytics
Need a deeper review of a specific site?
Analyst-reviewed commercial underwriting covering operating economics, opening capital, cash runway, downside scenarios, lease exposure, and negotiation priorities. Standard one-site scope is £295.
Requesting a review is not a purchase. Scope is confirmed before work begins.
YieldLens UK provides indicative decision-support only. It is not financial advice, legal advice, tax advice, a valuation, or a substitute for professional due diligence. The Standard commercial viability file is £49 and opens from the saved result.
Example snapshot
67/100
Worth investigating. Rent burden is elevated, but the site still has room to prove itself if the assumptions are real.
Rent burden
20%
Break-even/day
45
Customers/day needed to cover the current cost base.
Upfront cash
£81k
Fit-out, deposit, fees, stock, and setup costs.
Six-month test
Lower pressure
The downside month still needs a buffer, not confidence alone.
Risk flag: the site covers downside monthly costs, but cash left after opening is thin relative to expected revenue.
See the full paid file format in the sample Standard Commercial Viability File.
Value comparison
Spend £49 before you spend £2,500+.
Professional lease reviews, surveys and pre-signing checks can quickly cost £2,500+ before you commit to a site. YieldLens gives you a £49 first-pass viability screen so you can pressure-test rent burden, opening cash, break-even pressure and downside risk before deciding whether to take the lease further.
Important limits
YieldLens does not replace solicitors, surveyors, valuations or professional due diligence. It helps you test whether the numbers are worth taking further.
Professional costs vary by lease, property, location and scope. £2,500+ is an indicative comparison for legal review, surveys and pre-signing checks, not a guaranteed cost or saving.
Free commercial check
What the free check shows
The free result gives the headline pressure points so you can decide whether the unit deserves more time, better terms, or a deeper look in the £49 Standard Commercial Viability File.
Rent burden
Break-even customers
Opening cash pressure
Downside trading
Six-month survival
Lease questions to verify
Why this matters before signing
A good-looking unit can still be commercially fragile.
Rent only looks manageable once fit-out, deposit, legal fees, staffing, and utilities are all in the stack.
A good-looking unit can still be commercially fragile if the opening start is weaker than planned.
How it works
Turn a lease decision into numbers you can challenge.
Use the check as an initial screen before the site absorbs legal fees, fit-out planning, negotiation time, or a deposit.
1
Enter the lease and trading assumptions
Add rent, customers, average spend, opening days, staff costs, rates, utilities, fit-out, deposit, fees, stock, starting cash, and downside revenue.
2
Pressure-test the commitment
YieldLens turns the inputs into rent burden, break-even customers, upfront cash needed, cash after opening, downside burn, and survival runway.
3
Decide what to check next
Use the result to spot weak assumptions and identify the questions to raise before viewings, heads of terms, legal work, or signing.
Property tools
Commercial lease viability is the core product.
Start with commercial lease viability. Use the quick checks when you need a fast rent, yield, or cash-flow view.
Core product
Commercial rent affordability calculator
Check whether expected revenue, operating costs, opening cash, and downside trading can realistically carry the proposed rent.
Check rent affordability →Quick check
Commercial rent burden calculator
See how much expected revenue is absorbed by rent before the rest of the operating cost base is paid.
Calculate rent burden →Quick check
Break-even customers calculator
Turn the monthly cost base into the customer volume or trading level the site needs to break even.
Check break-even pressure →Quick check
Compare two sites
Compare two possible commercial premises side by side before spending on deeper legal, survey, or fit-out work.
Compare two sites →Quick check
Commercial lease viability guide
Work through rent, opening cash, downside trading, and the lease questions that can change whether a site deserves further scrutiny.
Read the viability guide →Quick check
Commercial lease survival calculator
Pressure-test how long the opening cash buffer could survive if early trading comes in below the expected case.
Test downside survival →Business-specific rent checks
Pressure-test the unit against the economics of the business.
Different operators carry rent differently. Start with the guide closest to the business model, then run the free commercial check with the actual site assumptions.
Residential property tools
YieldLens is primarily focused on commercial lease viability. Residential checks remain available as separate supporting tools.
Before signing guides
If a commercial site is still under consideration, start with the checklist hub and the lease guides that shape opening cash and downside risk.
Commercial lease checklist before signing
Start with the hub that groups the main lease checks.
Commercial lease costs before signing
Check the full cost stack before the lease gets expensive.
Commercial heads of terms before signing
Check the early deal points before they are treated as settled.
Commercial break clause before signing
Check the exit route if trading weakens after opening.
Viability file
Save the result as a structured commercial viability file.
The free check gives the first signal. The fuller file organises the key metrics, assumptions, risk flags, missing evidence, and next questions before you commit.
The Standard Commercial Viability File is £49 and opens from the saved result.
Commercial viability file
Executive verdict and site snapshot
Rent burden and break-even customers
Upfront cash and cash after opening
Downside trading and six-month survival
Lease questions and missing evidence checklist
Important disclaimer
YieldLens UK provides indicative commercial lease viability checks, property pressure-tests, and decision-support analysis only. It is not financial advice, legal advice, tax advice, a valuation, or a substitute for professional due diligence.