Lease

A lease is a legally binding contract that grants one party, the tenant, the right of exclusive possession of a property for a defined term, in return for rent or a premium, as defined under the Law of Property Act 1925. In property, leases underpin two distinct arrangements: long leasehold ownership (such as a 99-year flat lease, where the lease creates a proprietary interest in the land), and short residential tenancies granted to occupiers of private rented homes. Both are leases in law, but they operate under entirely separate statutory frameworks and carry very different obligations for landlords.

Lease vs tenancy agreement

In everyday use, "lease" and "tenancy agreement" are often treated as synonyms, and in legal terms they largely are, both describe a contract granting exclusive possession for a term. The distinction that matters in practice is between a lease and a licence. A licence grants permission to occupy but does not confer exclusive possession; the occupier cannot exclude the owner from the property. A lease does confer exclusive possession and is therefore a stronger legal instrument with greater statutory protection for the occupier. Calling an agreement a "licence" does not make it one, courts look at the substance of the arrangement, not its label (Street v Mountford [1985] AC 809). If a landlord grants exclusive possession of a self-contained property at a market rent, the agreement will almost certainly be treated as a tenancy regardless of what it says at the top of the document.

Lease vs tenancy agreement

In everyday use, "lease" and "tenancy agreement" are often treated as synonyms, and in legal terms they largely are. The distinction that matters in practice is between a lease and a licence. A licence grants permission to occupy but does not confer exclusive possession; the occupier cannot exclude the owner from the property. A lease does confer exclusive possession and is therefore a stronger legal instrument with greater statutory protection for the occupier. Calling an agreement a "licence" does not make it one. Courts look at the substance of the arrangement, not its label (Street v Mountford [1985] AC 809). If a landlord grants exclusive possession of a self-contained property at a market rent, the agreement will almost certainly be treated as a tenancy regardless of what it says at the top of the document.

Types of lease in UK property

Long leases are typically granted for terms of 21 years or more, commonly 99, 125, or 999 years. They create a leasehold interest in land: the leaseholder has a proprietary right that can be mortgaged, sold, and inherited. The freeholder owns the building and land; the leaseholder owns the right to occupy for the lease term. Long leases are governed primarily by landlord and tenant legislation including the Landlord and Tenant Act 1985 and the Leasehold Reform, Housing and Urban Development Act 1993.

Short residential leases - the agreements most private landlords grant, typically run for six or twelve months as a fixed term, or operate as periodic tenancies with no fixed end date, rolling month to month. A residential lease granted to an individual as their only or main home will almost always be an assured tenancy under the Housing Act 1988, regardless of what the agreement calls itself.

What a lease must contain

A valid lease requires three elements established in law: certainty of parties (identified landlord and tenant), certainty of property (the premises demised), and certainty of term (a defined start date and duration). Beyond these essentials, a well-drafted residential lease sets out the rent amount and payment frequency, obligations on repairs and maintenance, restrictions on use and alterations, rules on subletting and assignment, and any break clause allowing early termination. From 1 May 2026, landlords must also provide a Written Statement of Terms before a new tenancy is signed, a specific statutory requirement under the Renters' Rights Act.

For practical guidance on what a residential lease must include after the Renters' Rights Act came into force, see August's blog article on tenancy agreement templates.

The Renters' Rights Act and residential leases

From 1 May 2026, the Renters' Rights Act 2025 fundamentally changed the structure of residential leases in England. All new private residential tenancies granted to individuals as their only or main home are now assured periodic tenancies, open-ended, rolling agreements with no fixed end date. Fixed-term assured tenancies no longer exist for new lettings. Any clause in a new residential agreement purporting to set a fixed term is void, and using one carries a civil penalty of up to £7,000. All existing fixed-term tenancies also converted to assured periodic tenancies on 1 May 2026, regardless of when they were granted or when their fixed term was due to expire.

This means a residential lease is now, by law, open-ended from the outset. Rent increases must follow the statutory Section 13 notice process using Form 4A, once per year with at least two months' notice. A landlord cannot use a contractual rent review clause. The label "lease" or "assured shorthold tenancy" is now legally obsolete for new residential lettings in England; the correct instrument is an assured periodic tenancy.

From 1 May 2026, all new residential leases granted to individuals as their only or main home are assured periodic tenancies under the Renters' Rights Act, see August's Renters' Rights Act hub for a full overview of what changed.

What happens when a lease ends

For long leases, when the term expires the freeholder becomes entitled to possession. In practice, qualifying leaseholders have statutory rights to extend under the Leasehold Reform, Housing and Urban Development Act 1993 (as amended by the Leasehold and Freehold Reform Act 2024), and most exercise these rights well before the term runs low.

For residential tenancies, the position has changed fundamentally since 1 May 2026. There is no longer a fixed-term end date on new tenancies. A landlord can only end an assured periodic tenancy by serving notice under one of the statutory grounds in Schedule 2 to the Housing Act 1988 (as amended by the Renters' Rights Act). The tenant can end it by giving two months' written notice at any time.

From working with self-managing landlords across the UK, the most common confusion we encounter is landlords who believe the end of a fixed-term lease automatically triggers a possession right. It never did, and from 1 May 2026, there is no fixed end date at all. Possession must follow the statutory grounds process, and there are no shortcuts.

Landlords managing lease documentation, tenancy agreements, and compliance deadlines across multiple properties can use August's document management feature to store and share all agreements in one place.

Frequently asked questions

Is a lease the same as a tenancy agreement? 

In most residential contexts, yes, both terms describe a contract granting a tenant exclusive possession of a property for a set period in return for rent. "Tenancy agreement" is the more common term in the private rented sector; "lease" is more commonly used in the context of long leasehold ownership. The legal substance is the same: what matters is whether the agreement grants exclusive possession, not what it is called.

What is the difference between a lease and a licence? 

A lease grants exclusive possession, the tenant can use the property to the exclusion of the landlord (subject to inspection rights). A licence merely grants permission to occupy without exclusive possession, typically used for lodgers or service occupiers sharing the landlord's home. The distinction matters because assured tenancy protection applies to leases, not licences. Courts will look at the actual arrangement, not the label used in the document.

Does a lease have to be in writing? 

For residential tenancies of three years or less, a lease can technically be created orally, but a written agreement is always advisable. Leases for more than three years must be granted by deed and registered at HM Land Registry. From 1 May 2026, landlords must provide a Written Statement of Terms before a new assured periodic tenancy is signed, regardless of whether they use a full written agreement.

Can a landlord end a lease early? 

For residential assured periodic tenancies, a landlord can only end the tenancy by establishing one of the statutory grounds for possession under Schedule 2 to the Housing Act 1988 and following the Section 8 notice procedure. Simply inserting a break clause does not override statutory tenant protections. For long leasehold, a landlord (freeholder) can only forfeit a lease through a court process and only where there has been a proven breach of covenant.