Restaurant lease viability
Check whether a restaurant lease can carry the numbers.
A restaurant lease is not only a rent decision. You need to pressure-test rent burden, daily covers, average spend, staffing, rates, fit-out, opening cash, weaker trading, and lease terms before committing.
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.
Quick answer
A restaurant lease looks more viable when rent is not taking too much expected revenue.
Break-even covers should sit comfortably below realistic covers, not just below the best case.
Staffing, rates, utilities, fit-out, opening cash, and lease terms can all change the result materially.
12% rent burden is a healthier screen, 18% is a caution threshold, and above 18% needs stronger evidence or sharper lease terms.
Why restaurants need a separate pressure-test
Restaurants can be more exposed than simple retail or cafe assumptions.
The cost structure is often heavier, the opening process is more complex, and the downside case can move quickly if the trading pattern is weaker than expected.
Core formula
Rent burden is monthly rent divided by expected monthly revenue.
For a restaurant, covers/day can be treated as customers/day for the commercial check.
Worked example
Annual rent: £96,000
Monthly rent: £8,000
Expected covers/day: 100
Average spend: £28
Opening days/month: 26
Expected monthly revenue: £72,800
Rent burden: about 11.0%
Interpretation
This rent burden is healthier on paper than a high-burden site, but the rest of the cost base, fit-out, and downside trading still need checking.
Break-even covers
Convert fixed monthly costs into a daily covers target.
Affordability becomes clearer when the known cost base becomes a break-even number the trading plan has to beat.
Break-even example
If the known monthly cost base is £48,000 and average spend is £28 across 26 opening days, break-even is about 66 covers/day.
What it means
If expected covers/day is 100, there is headroom on paper, but the 100-cover assumption needs evidence by daypart, weekpart, competitor observation, and capacity.
Upfront cash and fit-out
Restaurants can fail before opening if the launch costs absorb too much cash.
Fit-out, equipment, deposit, legal fees, licensing, stock, and launch costs can overwhelm the opening budget.
Fit-out and equipment: £140,000
Rent deposit: £24,000
Legal/professional fees: £6,000
Opening stock: £15,000
Other setup costs: £10,000
Starting cash: £220,000
Upfront cash needed: £195,000
Opening buffer: £25,000
Why it matters
The opening buffer is positive, but it may still be thin relative to restaurant fit-out overruns and early trading friction.
Downside trading
Test the lease against weaker revenue, not only the expected case.
Restaurants should be checked against a weaker trading scenario so you can see whether the opening buffer is enough.
Base monthly revenue: £72,800
60% downside revenue: £43,680
Known monthly cost base: £48,000
Downside monthly position: £4,320 burn
Interpretation
In this downside case, the site burns cash. With a £25,000 opening buffer, that gives about 5.8 months before the buffer is exhausted, before allowing for other shocks.
Restaurant lease terms that matter
Use the lease questions before the rent number becomes a commitment.
Ask a solicitor to review the lease wording before committing.
Rent-free period
Ask what the clause means in practice and whether it makes the site harder or easier to run commercially.
Rent review
Ask what the clause means in practice and whether it makes the site harder or easier to run commercially.
Service charge
Ask what the clause means in practice and whether it makes the site harder or easier to run commercially.
Repairing obligations
Ask what the clause means in practice and whether it makes the site harder or easier to run commercially.
Extraction and ventilation
Ask what the clause means in practice and whether it makes the site harder or easier to run commercially.
Permitted use
Ask what the clause means in practice and whether it makes the site harder or easier to run commercially.
Alcohol or licensing
Ask what the clause means in practice and whether it makes the site harder or easier to run commercially.
Planning use
Ask what the clause means in practice and whether it makes the site harder or easier to run commercially.
Break clause
Ask what the clause means in practice and whether it makes the site harder or easier to run commercially.
Handover condition
Ask what the clause means in practice and whether it makes the site harder or easier to run commercially.
Landlord works
Ask what the clause means in practice and whether it makes the site harder or easier to run commercially.
Assignment and subletting
Ask what the clause means in practice and whether it makes the site harder or easier to run commercially.
Worked restaurant example
Redacted restaurant site
This example is fictional and redacted. It shows the shape of the restaurant affordability question without exposing a real tenant or address.
Business type
Restaurant
Address
Redacted city centre site
Postcode
SW1 sample
Annual rent
£96,000
Monthly rent
£8,000
Expected covers/day
100
Average spend
£28
Opening days/month
26
Monthly revenue
£72,800
Rent burden
about 11.0%
Known monthly cost base
£48,000
Break-even covers/day
about 66
Upfront cash needed
£195,000
Starting cash
£220,000
Opening buffer
£25,000
Downside monthly position
£4,320 burn
Indicative runway
about 5.8 months
Verdict
The rent burden is not the main problem in this example. The bigger issue is downside trading and the size of the opening cash buffer relative to restaurant setup risk. The site needs evidence for covers, average spend, staffing costs, fit-out costs, and lease clauses before committing.
Common restaurant lease mistakes
The lease question often goes wrong for predictable reasons.
How YieldLens helps
Turn the restaurant lease into numbers you can challenge.
The free commercial check can be used for restaurants by treating covers/day as customers/day and average spend as spend per cover.
Free check outputs
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Related pages
Use the restaurant page alongside the other commercial guides.
These pages keep the same pressure-test framing but focus on different site types.
Salon lease viability check
Use the salon page when treatment rooms, chair capacity, or chair-rent assumptions matter.
Commercial lease checklist before signing
Use the checklist to review rent, cash, and lease terms before you commit.
Commercial lease viability check
Read the core commercial lease pressure-test before you run the check.
FAQ
Restaurant lease viability questions
Short answers for people deciding whether a restaurant site deserves a deeper look.
How much rent can a restaurant afford?
There is no universal number. YieldLens uses rent burden as a screen, with 12% as a healthier threshold and 18% as a caution threshold. Those are indicative screening thresholds, not universal rules.
What is a good rent burden for a restaurant?
Lower is generally easier to carry. YieldLens treats around 12% as healthier and around 18% as a caution threshold. The right level still depends on the rest of the cost base and opening cash.
How do I calculate restaurant break-even covers?
Add the known monthly cost base, then divide it by average spend and opening days to get a daily covers target. The commercial check helps turn that into a practical figure.
Should I include fit-out before judging a restaurant lease?
Yes. Fit-out, equipment, deposits, fees, and stock can determine whether the site survives the opening phase.
What lease clauses matter most for restaurants?
Service charge, repairing obligations, rent review, break clauses, extraction, licensing, planning, and permitted use usually deserve close attention.
Can YieldLens tell me whether to sign a restaurant lease?
No. YieldLens UK provides indicative decision-support only. It helps structure the commercial numbers and questions before you commit, but it does not tell you to sign or not sign.
Pressure-test the restaurant lease before you commit.