Commercial permitted use
Commercial permitted use before signing a lease
The numbers can look workable, but the site still needs to be usable for the intended business. Permitted use, planning restrictions, licensing, lease wording and landlord consent can all affect whether a commercial unit can actually trade as planned.
Use this page to check the use assumptions before fit-out, deposit, and legal costs are committed.
YieldLens UK provides indicative decision-support only. It is not financial advice, legal advice, tax advice, planning advice, licensing advice, a valuation, a RICS valuation, building survey advice, or a substitute for professional due diligence.
Why permitted use matters
Use may be restricted
The lease can limit what the property may be used for, which affects whether the concept can operate there.
Planning and licensing may still matter
A viable unit can still need further permission before it is ready to trade.
Costs are easier to avoid early
It is safer to check use assumptions before fit-out, deposit, and legal costs are committed.
Revenue assumptions can break
If the intended use is not allowed, the revenue case may not be realistic even if the rent model looks fine.
Why it matters
A site can look financially viable and still be the wrong use.
Use restrictions matter before fit-out, deposit and legal costs are committed. The commercial case only works if the intended business can actually operate there.
Use and tradeability
The lease may restrict how the property can be used, which can stop the intended concept before it starts.
Planning and licensing
Separate permissions may still be needed before the site can open and trade as planned.
Upfront spend
If use is not settled, fit-out, deposit, and legal costs can be sunk into the wrong site.
Revenue realism
Revenue assumptions only work if the planned service, layout, hours, and operating model are actually allowed.
Landlord consent
Some changes or uses may need landlord approval before they can proceed.
Lease viability
A site can look affordable on rent and still fail the practical use check.
Commercial comparison
Financial viability is not the same as permitted use.
YieldLens can test the commercial pressure points, but it cannot confirm that the intended use is legally or practically permitted.
Rent burden
Shows whether the headline rent is too much for the expected revenue.
Permitted use
Shows whether the intended business can actually operate at the site.
Planning and licensing
Shows whether the business may need further permission before trading.
Landlord consent
Shows whether the intended use or works may need approval before opening.
Fit-out and opening cash
Shows whether upfront spend is still sensible if the use is not yet settled.
Lease restrictions
Shows whether use wording, hours, extraction, signage, or exclusivity could limit the concept.
Illustrative example
If the use is wrong, the revenue case may not be realistic.
This is an illustrative scenario, not a real case study.
Business type
Cafe
Annual rent
£60,000
Monthly rent
£5,000
Expected monthly revenue
£24,960
Expected customers/day
80
Fit-out
£50,000
Opening cash buffer
£9,000
If the cafe use, opening hours, extraction, signage, alcohol licence, seating, outdoor space or other operational assumptions are not permitted, the revenue case may not be realistic even if the rent model appears workable.
Questions to verify
What should you check before relying on the use assumption?
These are the points to verify with a solicitor, the landlord, or the relevant official source before the deal moves forward.
Does the lease permit the intended business use?
Is the permitted use wide enough if the concept changes later?
Is landlord consent needed for the intended operation?
Are planning constraints or separate permissions to check?
Are licences needed before trading starts?
Are opening hours restricted?
Are extraction, signage, seating, or outdoor trading assumptions allowed?
Are there exclusivity or neighbouring-use restrictions?
Could permitted use affect assignment or subletting later?
Has a solicitor or appropriate professional reviewed the wording?
How YieldLens helps
The free commercial check tests the pressure points around the use question.
YieldLens can help you see whether the lease still looks viable once the commercial assumptions are tested, but it cannot confirm permissions or wording.
Free check
- Rent burden, opening cash pressure, break-even customers, downside trading, and lease pressure points.
- A quick screen for whether the site deserves deeper work.
Standard file
- Assumption review, stress-test interpretation, negotiation levers, evidence checklist, and lease questions.
- A printable decision memo tied to the saved result.
- Useful when the commercial questions need to be organised before signing.
Related pages
Use the next page that matches the question you are asking.
Commercial lease checklist before signing
Use the hub to step through the wider pre-signing checks.
Commercial heads of terms before signing
Check the early deal points before the lease gets expensive.
Commercial lease costs before signing
Check whether the cost stack still works if use is constrained.
Commercial fit-out costs before signing
Check whether the fit-out spend is worth committing to yet.
Commercial lease viability check
Pressure-test the numbers after the use question is understood.
Frequently asked questions
Commercial permitted use FAQs
Short answers for people checking whether the intended use is actually workable at the site.
What is permitted use in a commercial lease?
Permitted use is the type of business or activity the lease allows at the property. The exact wording matters because it can limit what the tenant can actually do at the site.
Why should I check permitted use before signing?
A site can look financially viable and still be unsuitable if the intended use is not allowed or needs further permission. Checking early helps avoid spending on a unit that cannot operate as planned.
Can planning or licensing affect lease viability?
Yes. Planning constraints, licences, landlord consent, or lease wording can all affect whether the intended business can open and trade as planned.
Should permitted use be checked before fit-out?
Yes. It is safer to check before fit-out, deposit, and legal costs are fully committed, because those costs can be hard to unwind.
Can YieldLens confirm whether a business use is allowed?
No. YieldLens does not confirm permitted use, planning position, licensing position, or landlord consent. It helps you identify where the commercial risk sits so the right checks can be made.
Is YieldLens giving legal, planning or licensing advice?
No. YieldLens UK provides indicative decision-support only. It does not provide legal, planning, licensing, valuation, tax, or financial advice.
Important disclaimer
YieldLens UK provides indicative decision-support only. It is not financial advice, legal advice, tax advice, planning advice, licensing advice, valuation, building survey advice, or a substitute for professional due diligence.