How do commercial leases affect a mixed-use property sale?
A commercial lease lets a shop, office or other business unit, often in a building that also has flats. Business tenants may have security of tenure under the Landlord and Tenant Act 1954 unless the lease was contracted out. The rent, length, break clauses and the tenant's financial strength decide most of the value when you sell.
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Key lease terms
| Term | Why it matters |
|---|---|
| Length and breaks | Longer certain income is worth more |
| Security of tenure | 1954 Act renewal rights unless contracted out |
| Rent reviews | Upward-only, open market or index-linked |
| Repairs | Full repairing (FRI) leases put costs on the tenant |
| Use clause | Limits what the unit can be used for |
| EPC | Commercial minimum standards apply to new and existing leases |
How they differ from residential lets
Commercial leases are negotiated contracts with few of the tenant protections in residential law. The Renters' Rights Act does not apply to them. Terms commonly run for five to fifteen years, and the tenant often pays for repairs, insurance and business rates.
Security of tenure
Under the Landlord and Tenant Act 1954, a business tenant in occupation can usually renew at the end of the lease unless the landlord proves a statutory ground, such as redevelopment or own occupation, often with compensation. Many leases are contracted out of these rights through a formal procedure before the lease is signed. Buyers check which applies.
Energy rules
Commercial property has its own minimum energy efficiency standards, currently band E for lettings, and the government has proposed raising the standard. A poor EPC on the shop can affect value and lettability as much as on the flats; see EPC rules.
Selling with a commercial tenant
Investors value the commercial part on rent and yield, adjusted for lease length, breaks and covenant. A vacant or failing shop drags the value of the whole building. If the commercial part is opted to tax, a sale may need to be a transfer of a going concern; see VAT and property and mixed-use property.
Official Sources and Further Reading
- legislation.gov.uk: Landlord and Tenant Act 1954, Part II
- GOV.UK: non-domestic private rented property minimum energy efficiency standard
General information for landlords in England, checked against official sources in October 2026. It is not tax, legal or financial advice: speak to a qualified accountant or solicitor about your own circumstances.
Frequently Asked Questions
A commercial lease lets a shop, office or other business unit, often in a building that also has flats. Business tenants may have security of tenure under the Landlord and Tenant Act 1954 unless the lease was contracted out. The rent, length, break clauses and the tenant's financial strength decide most of the value when you sell.
A new lease can carry SDLT on the rent above a threshold, which is the tenant's cost.
Only through the lease terms or a 1954 Act ground. Selling with the tenant in place is usually simpler.
Normally the tenant in occupation. The landlord pays when the unit is empty, after any empty property relief.
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