Commercial rent increase rights

This is a common concern for commercial tenants and the answer depends on several key factors, principally the terms of your lease and whether you have security of tenure under the Landlord and Tenant Act 1954.

The main scenarios:

1. Where your lease contains a rent review clause

Most commercial leases include a rent review mechanism. This will set out when and how the rent can be adjusted, typically at fixed intervals such as every three or five years. The most common types are:

Open market rent review, where the rent is adjusted to reflect the current market rental value of the premises. This can go up or down in theory, though many leases contain an "upward only" provision meaning the rent can never fall below the current level even if the market has dropped.

Index-linked review, where the rent is adjusted in line with a specified index such as the Consumer Prices Index or the Retail Prices Index.

Fixed increase, where the lease specifies a set amount or percentage increase at each review date.

The landlord must follow the procedure set out in the lease precisely. If they fail to serve the correct notices or comply with the required timetable, their ability to implement the review may be affected, though many leases contain provisions allowing late service of trigger notices.

If the parties cannot agree the new rent, the lease will usually provide for determination by an independent surveyor acting either as an arbitrator or as an independent expert.

2. Where the lease is coming to an end and the 1954 Act applies

If your tenancy is protected under Part II of the Landlord and Tenant Act 1954, your landlord cannot simply end the lease and impose new terms. The Act gives you the right to remain in occupation and to request a new tenancy. As part of the renewal process, either party can apply to the county court to determine the terms of the new lease, including the rent. The court will set the rent at the open market level, disregarding certain matters such as the effect of your occupation and any goodwill attached to your use of the premises.

The landlord can only refuse renewal on specific statutory grounds, such as persistent delay in paying rent, their intention to demolish or reconstruct the premises, or their intention to occupy the premises themselves.

3. Where the 1954 Act has been excluded

If the tenancy was validly contracted out of the 1954 Act (which requires a specific procedure involving a notice and declaration before the lease was granted), you have no statutory right to renew. When the lease ends, the landlord can offer new terms including a higher rent, or decline to grant a new lease at all. Your negotiating position in this situation depends largely on practical and commercial factors rather than legal rights.

4. Where you hold over after a fixed-term lease without the 1954 Act

If you remain in occupation after the lease expires without a new agreement, a tenancy at will or periodic tenancy may arise depending on the circumstances. The terms on which you hold over, and the landlord's ability to adjust the rent, will depend on the specific facts.

Practical steps to consider:

1. Check the terms of your lease carefully, particularly any rent review clause, break clause, and whether the 1954 Act was contracted out.

2. Check the dates. Rent review clauses typically require notices to be served by specific dates, and failure to act in time can have consequences for either party.

3. If a rent review is triggered, do not simply accept the landlord's proposed figure. You are entitled to negotiate, and you should gather evidence of comparable rents for similar premises in the area.

4. Consider instructing a commercial property surveyor with experience of rent reviews in your area. They can advise on the market rent and, if needed, act for you in any formal determination process.

5. If the lease is approaching its end and the 1954 Act applies, be aware of the statutory timetable for renewal. A section 25 notice from the landlord or a section 26 request from you will start the clock running. Missing deadlines can have serious consequences.

Important factors I would need to know to give you more specific guidance:

Whether your lease is inside or outside the 1954 Act.
The exact wording of any rent review clause.
Whether any notices have been served by either party.
The remaining term of the lease.
Whether there is a break clause.

If you can share any of these details I can help you work through your position more precisely.