Bringing a commercial lease to an end should be straightforward. In practice, it is one of the most common areas where costly mistakes are made.
A defective notice can mean that a lease continues when you expected it to end, leaving you exposed to ongoing liabilities, lost opportunities and in some case, significant legal costs.
The importance of getting it right
Whether you are a landlord seeking to recover possession or a tenant planning an exit, the method of termination matters. Commercial leases can be brought to an end in several ways, including:
- Contractual break clauses
- Forfeiture
- Expiry of the commercial term
- Statutory procedures under the Landlord and Tenant Act 1954.
Each route comes with its own technical requirements. Missing just one of them can invalidate the entire process.
Statutory notices – timing is critical
Where a tenancy is protected by the Landlord and Tenant Act 1954 (“the 1954 Act”) and there is no break clause to utilise, a landlord must serve a notice under section 25 of the Act to either terminate the tenancy or propose new terms. This type of notice must:
- Give not less than 6 months; and not more than 12 months’ notice;
- Specify a termination date which is not earlier than the contractual term date.
Alternatively a tenant may initiate the process by serving a request for a new tenancy pursuant to the 1954 Act.
These statutory deadlines are strict. A miscalculation or incorrectly specified date can invalidate the notice entirely.
Common pitfalls
In our experience, the most frequent issues include:
- Incorrect timing – whether under a break clause of the 1954 Act, notices must be served within strict time windows. Serving too early or too late can render a notice ineffective.
- Failure to comply with lease conditions – break clauses are often conditional (for example, requiring vacant possession or payment of all sums due). Even minor breaches can prevent the break from taking effect.
- Defective wording – notices must clearly and accurately communicate the intention to terminate. Errors in prescribed statutory notices or ambiguity in break notices can be fatal.
- Service errors – leases often prescribe how notices must be served. Sending a notice to the wrong address or by the wrong method can invalidate it.
The consequences
The consequences of an invalid notice are rarely neutral. They can include:
- A lease continuing beyond the intended termination date
- Ongoing liability for rent, service charge and other outgoings
- Loss of redevelopment or re-letting opportunities
- Exposure to disputes and legal costs.
For tenants, this may mean being tied into a premises they no longer need. For landlords, it can delay strategic plans and reduce asset value.
How Tees can help
Many of these issues arise from last-minute action or assumptions that the process is straightforward. In reality, careful review of a lease and early planning is essential. Taking advice at an early stage allows potential issues to be identified and addressed before a notice is served – when there is still time to act.

