The Landlord and Tenant Act of 1954 -- created by the United Kingdom Parliament -- is a legislation that governs landlord and tenant contracts for commercial leases. When a landlord and tenant agree on contract terms that are contrary to the provisions of The Act, it is referred to as going outside The Act.
Agreeing on terms outside of the Landlord and Tenant Act gives landlords more flexibility with regard to terms of a lease. Instead of creating a lease agreement according to legislation, a landlord and tenant can negotiate a mutual lease that is still legally binding.
Under the Landlord and Tenant Act, a tenant is allowed to remain on the premises of a rented commercial property beyond the time designated on the lease. If a tenant agrees to leave a property when a lease expires and signs written documents specifying this, he is no longer protected by The Landlord and Tenant Act.
Initially, lease agreements that were contradictory to The Act's legislation were filed with and approved by a local court before becoming legally binding, but amendments added in 2004 removed the need for court approval of commercial lease agreements made outside of The Act's provisions. Now, landlords can submit a written agreement to a tenant, and once he responds, the contract is binding.