Most commercial leases are for a fixed term of years with a specified commencement date and duration.

Periodic tenancies also exist (whereby the tenancy can be terminated by a period of notice given by either the landlord or tenant ) but this is usually restricted to short term occupation.

Despite the fixed period, there can be a break clause allowing the landlord or the tenant to terminate the lease early at a particular date or on the occurrence of certain events, often linked to a rent review. The lease may give you the right to renew or extend the lease for a further term, subject to agreeing a new rent. Such rights would be in addition to your statutory right to renew the tenancy.