Nearly 95% of UK businesses lease their commercial premises rather than own them, according to recent industry data. That figure alone tells you how central renting is to how British commerce works. But the same data shows that many tenants sign up without fully understanding what they’re agreeing to — and that’s where the trouble starts.
I’ve spent years covering the UK property market, and the same patterns keep coming up. Business owners rush into a lease because they’ve found the perfect location, only to discover six months in that they’re on the hook for structural repairs, can’t sublet the back office they’ve outgrown, or have missed a break clause deadline by two days. A showroom lease gone wrong can cost you far more than the rent you budgeted for. Here’s what you actually need to know.
What a commercial lease actually commits you to
The most common arrangement in the UK is a Full Repairing and Insuring (FRI) lease. That sounds straightforward, but it places comprehensive maintenance and insurance responsibilities on you as the tenant. Under an FRI agreement, you assume obligations for all repairs — including structural elements, roof maintenance, and external decorations — alongside arranging building insurance coverage. A professional survey identifying existing defects becomes essential, because you inherit responsibility for pre-existing issues unless you’ve documented them through a schedule of condition that limits your repair obligations to maintaining current standards.
There are alternatives. An internal repairing lease means you maintain the interior only while the landlord handles the structure and exterior. Net leases allocate taxes, insurance, and maintenance between parties in different ways. A gross or full-service lease bundles everything into a single rent payment. And a percentage or turnover lease charges a base rent plus a slice of your business revenue — common in retail but risky if your margins are thin. What I’d do is match the lease structure to your business stage. A young company with limited capital should avoid an FRI lease on an older building unless the landlord has provided a recent structural survey and you’ve agreed a cap on repair costs.
Why the lease structure matters more than the rent
Regional office investment volumes reached £3.6 billion in 2025, a 23% increase on 2024. That tells you the market is moving, and landlords are becoming more confident. When the market shifts, the terms you agreed at signing become even more important. A lease that seemed fair in a soft market can feel punishing when rents rise and you’re locked in for five years.
Consider a small business renting a ground-floor unit on a high street. The landlord offers a five-year FRI lease with an open-market rent review at year three. If local rents have climbed by the time that review hits, your monthly payment jumps — and you’ve already spent your fit-out budget. A tenant break clause at year two would let you walk away if the numbers stop working. But break clauses come with strict conditions: you usually need to give notice in writing, pay all sums due, and hand back vacant possession. The High Court has repeatedly invalidated break notices for minor procedural errors, so the mechanics matter.
What I notice is that tenants often focus on the headline rent and ignore the review mechanism. An index-linked review tied to RPI or CPI is predictable. An open-market review is a gamble. If you’re in a rising market, push for fixed uplifts or a cap. And if you’re signing a lease “inside” the Landlord and Tenant Act 1954, you have the right to renew at the end of the term — but the landlord can refuse on statutory grounds like redevelopment or persistent rent arrears. A break clause explained properly can save you from being stuck in a space that no longer works.
Where tenants get tripped up
The most common mistakes aren’t about the rent. They’re about the things the lease doesn’t say clearly — or the things tenants assume are standard.
Signing an FRI lease without a schedule of condition
Without a photographic schedule of condition, you’re responsible for returning the property in the condition it was in at the start — but there’s no record of what that condition was. Landlords can then claim you caused damage that was already there. A professional survey and dated photos, attached to the lease as a schedule, limit your liability to “no worse than at commencement.” This is non-negotiable for any FRI lease on a building older than ten years.
Ignoring the permitted use clause
The permitted use clause defines what you can do in the space. If it says “retail use Class E” and you plan to run a coffee shop with a small kitchen, you may need planning permission for a change of use or additional approvals under Building Regulations. Check the property’s planning use class under the Town and Country Planning (Use Classes) Order 1987 before you sign. Many high street uses now fall under Class E, but not all. If you need landlord consent for signage, shopfront changes, or internal works, get it in writing before you move in.
Overlooking the service charge
In multi-let buildings, the service charge covers common areas, cleaning, security, and maintenance. Many landlords follow the RICS Professional Statement on service charges, but not all do. Ask for a breakdown of the previous year’s charges and a budget for the coming year. Check whether the charge includes a sinking fund for major works — and whether you have a right to challenge the costs. A guide to navigating service charges can help you spot the hidden costs before they hit your bottom line.
Missing the compliance checklist
Commercial properties need a valid Energy Performance Certificate (EPC). Minimum Energy Efficiency Standards (MEES) generally restrict letting F- or G-rated buildings in England and Wales unless an exemption applies. You also need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, asbestos management under the Control of Asbestos Regulations 2012, and compliance with the Health and Safety at Work etc. Act 1974. If you’re taking on a lease for a building that hasn’t been updated recently, factor in the cost of bringing it up to standard.
→ Scroll right to see all columns
| Lease Type | Who Pays for Repairs | Best For |
|---|---|---|
| Full Repairing & Insuring (FRI) | Tenant — all repairs, structure, insurance | Established businesses with capital reserves |
| Internal Repairing | Tenant — interior only; landlord handles structure | Tenants in older buildings with uncertain structural condition |
| Gross / Full Service | Landlord — all expenses in single rent | Short-term or serviced office occupiers |
| Turnover / Percentage | Base rent plus revenue share | Retail tenants in high-footfall locations |
What I’d do in your position: before you sign anything, run through the compliance checklist with a tenant landlord lawyer who can spot the clauses that will cost you later. A few hundred pounds on legal advice now can save you thousands in unexpected repair bills or legal fees down the line.
How to negotiate a commercial lease that works for you
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Negotiation isn’t just about the rent. It’s about the terms that determine how much flexibility and risk you carry for the duration of the lease. Here’s how to approach the key points.
Secure a rent-free period for fit-out
Most commercial leases include a rent-free period while you fit out the space. The length depends on the amount of work needed — four to six months is common for a full fit-out, while a lighter refurbishment might justify two to three months. Put the request in writing during heads of terms negotiations, and specify the start and end dates. If the landlord pushes back, offer to start paying service charges during the fit-out period as a compromise. A commercial yield explained can help you understand what the landlord is really looking for — and where you have room to negotiate.
Get the rent review mechanism right
Open-market rent reviews are the most common but the most unpredictable. Index-linked reviews tied to RPI or CPI give you certainty. Fixed uplifts — say 3% per year — are even simpler. If the landlord insists on an open-market review, negotiate a cap (e.g. no more than 10% increase per review) or a collar (no decrease below the current rent). The review date matters too: a review at year three of a five-year lease gives you less time to absorb an increase than a review at year four.
Understand the 2025 legal changes
Effective March 3, 2025, the threshold for Right to Manage (RTM) eligibility in mixed-use buildings increased from 25% to 50% non-residential floorspace. That means more tenants in mixed-use buildings now have the right to take over management of the building from the landlord. If you’re renting in a building with residential and commercial space, this change could give you significantly more control over service charges and maintenance decisions. The Law Commission is also reviewing security of tenure provisions, which could fundamentally reshape commercial leasing practices in the coming years.
Document everything before you move in
Take dated photographs of every room, wall, floor, and ceiling. Note existing damage — cracks, stains, loose fittings. Have a chartered surveyor prepare a schedule of condition if the building is older or the lease is FRI. Attach the schedule to the lease as a referenced appendix. This single step can save you thousands at the end of the term when the landlord tries to claim for pre-existing damage. A Wi-Fi water leak detector is a small investment that can alert you to issues before they become expensive repair disputes.
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1Review heads of terms with a solicitorBefore the full lease is drafted, the heads of terms set out the key commercial points. Have a property lawyer check them — this is the cheapest time to fix problems.
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2Commission a building surveyFor FRI leases, a professional survey identifies structural issues, asbestos risks, and compliance gaps. Use the results to negotiate repair caps or a schedule of condition.
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3Confirm planning and complianceCheck the use class, EPC rating, fire risk assessment, and asbestos register. If anything is missing or expired, the landlord should address it before you take possession.
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4Negotiate the break clause termsAgree the notice period, service method, and any conditions (vacant possession, rent paid, no breach). Get the clause wording reviewed by a solicitor before signing.
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5Document condition and move inTake dated photos, attach a schedule of condition to the lease, and install basic monitoring devices. Keep a digital copy of everything in a secure folder.
Frequently asked questions
Can I end a commercial lease early if my business struggles? ▾
What happens if I stay after the lease expires? ▾
Do I need a solicitor to review a commercial lease? ▾
What’s the difference between a lease and a licence? ▾
Can I sublet part of my commercial space? ▾
What is a personal guarantee and should I avoid it? ▾
Sources and Further Reading
The Commercial Tenant’s Bill of Rights — A deeper look at your legal protections under UK law, including security of tenure and the 2025 Right to Manage changes.
Understanding Lease Surrender for Your Commercial Property — What to do if you need to exit a lease early, including surrender negotiations and potential costs.
Market in Minutes: Commercial Research Hub. Savills, 2025–2026.
How to Rent a Commercial Property in the UK. Sprintlaw, 2025.
Understanding Commercial Lease Agreements UK 2026: Complete Tenant Guide. Connaught Law, 2025.
