Mesne Profits — Damages for Unauthorized Occupation UK

What Are Mesne Profits?

Mesne profits are a claim for damages (or for money had and received on a quasi-contractual basis) for the use and occupation of land without the landowner's consent. They arise where a person who was formerly entitled to occupy land (e.g., a tenant under an expired tenancy) remains in occupation after their right to possession has ended. The foundation of the claim is trespass to land: the former tenant, by remaining in occupation without a legal right to do so, is technically a trespasser, and the landlord can recover compensatory damages for that trespass. Mesne profits are assessed by reference to the open market rental value of the property for the period of unauthorized occupation — this may be more or less than the contractual rent, depending on market conditions. They are not subject to the statutory notice requirements that apply to rent increases during a subsisting tenancy.

• Not rent: mesne profits arise where there is no subsisting tenancy — the landlord cannot claim rent once the tenancy has ended; the remedy is damages for trespass
• Trespass basis: former tenant remaining in occupation after expiry/termination of tenancy is technically a trespasser — mesne profits are compensatory damages for that trespass
• Open market rental value: quantum is the fair market rental value of the property for the period of unauthorized occupation — may differ from the expired tenancy rent
• Per day accrual: each day of unauthorized occupation gives a fresh cause of action; mesne profits continue to accrue until possession is recovered
• Claim in possession proceedings: county court possession claims routinely include a claim for mesne profits (use and occupation) at a daily rate pending actual recovery of possession

When Do Mesne Profits Arise?

Mesne profits arise in several common landlord-tenant scenarios. First, where a residential tenant holds over after the expiry of a fixed-term tenancy without the landlord's consent — once the fixed term expires and no new tenancy is created (e.g., the landlord has served a valid s.21 notice and obtained a possession order), the former tenant who remains is liable for mesne profits. Second, where a commercial tenant holds over after the contractual expiry without applying for a new tenancy under the Landlord and Tenant Act 1954 — the landlord is entitled to mesne profits at open market value for the period of unauthorized occupation. Third, where a landlord exercises the right of forfeiture (commercial leases — peaceable re-entry or court order) and the former tenant remains in occupation during the relief application period — mesne profits accrue during this period. Fourth, in squatter removal cases, the landowner recovering possession from a trespasser can claim mesne profits for the period of occupation.

• Residential holdover: tenant remaining after fixed-term expiry and valid s.21/possession order — mesne profits accrue from the date the order takes effect
• Commercial holdover (non-LTA 1954 protection): commercial tenant not entitled to LTA 1954 protection holding over after contractual expiry — mesne profits at open market rate
• Post-forfeiture: commercial tenant remaining during relief from forfeiture application — mesne profits accrue but tenant in relief proceedings has an equity that may affect the final outcome
• Squatters: trespassers on land have no right to occupation; landowner recovering possession via court order can claim mesne profits for period of unauthorized occupation
• Death of tenant: where a residential tenancy does not pass by succession and the executors/family remain in occupation — mesne profits accrue from the date the tenancy terminates

Quantum — How Are Mesne Profits Calculated?

Mesne profits are assessed at the open market rental value of the property for the period of unauthorized occupation. The key principle is that the landlord is entitled to be compensated for what they have lost — the use and occupation of their property. Where the open market rent is higher than the contractual rent (as often occurs where the market has moved since the original lease was agreed), the landlord is entitled to the open market rate. Where the open market rent is lower, the landlord is still entitled to mesne profits — but only at the lower open market rate (they cannot use mesne profits as a mechanism to recover above-market rates). The landlord typically claims a daily rate of mesne profits in possession proceedings and the order will usually include a direction that mesne profits continue at a daily rate until vacant possession is given.

• Open market value: assessed at the fair market rental value of the property, not the expired contractual rent — independent expert valuation evidence may be required for high-value disputes
• Market above contract rent: if open market rent exceeds the former contractual rent, mesne profits accrue at the higher market rate — landlord is compensated at current market values
• Market below contract rent: mesne profits limited to the open market rate — landlord cannot recover above-market damages through a mesne profits claim
• Daily rate: county court possession orders typically include a daily rate of mesne profits from the date of the order (or the date of unauthorized occupation) until vacant possession is given
• Expert evidence: for significant sums, expert RICS valuation evidence may be needed to establish the open market rental value for the relevant period

Limitation Period and Commercial Tenants Under LTA 1954

The limitation period for mesne profits claims is 6 years under the Limitation Act 1980 s.5 (damages claims are simple contract claims). However, because each day of unauthorized occupation gives a fresh cause of action, the practical limitation is that the landlord can recover mesne profits for the 6 years preceding the issue of proceedings. For commercial tenants with security of tenure under the Landlord and Tenant Act 1954 (LTA 1954), the position is different: where a commercial tenant duly serves or receives counter-notice and applies to the court for a new tenancy, they are entitled to remain in occupation under their existing terms until the court order is made or the application is withdrawn — they are not trespassing and mesne profits do not arise during this statutory continuation period. If the tenant fails to apply for a new tenancy under LTA 1954, the tenancy ends at the contractual expiry (or at the end of the s.25 notice period) and mesne profits can be claimed for any subsequent holdover.

• Limitation (LA 1980 s.5): 6 years from accrual of each daily cause of action — landlord can claim mesne profits for up to 6 years preceding issue of proceedings
• LTA 1954 protection: commercial tenant applying for a new tenancy under LTA 1954 has a statutory right to remain in occupation — not liable for mesne profits during the statutory continuation period
• Non-protected commercial tenant: holding over without LTA 1954 application after contractual expiry — mesne profits at open market rate; landlord can proceed quickly
• Contracted-out leases: commercial leases with valid contracting-out under LTA 1954 give no continuation rights — tenant holding over after expiry is immediately in mesne profits territory
• Interim rent: under LTA 1954 s.24A, the landlord can apply for an 'interim rent' during the statutory continuation period — this replaces the contractual rent and is assessed at market value (different from mesne profits)

Claims Process and Scotland

Mesne profits are claimed in county court possession proceedings (for residential property) or in the Business and Property Courts (for high-value commercial matters). The standard practice is to include a mesne profits claim in the possession claim form, with a daily rate pleaded from the date the tenancy ended (or the date of service of the claim) until possession is recovered. The possession order will typically include a direction that the defendant pay mesne profits at the claimed daily rate. After the order, if the defendant does not vacate, the landlord can enforce the possession order with a warrant of possession (county court) or writ of possession (High Court) and simultaneously pursue the accruing mesne profits judgment debt. In Scotland, the equivalent remedy is 'violent profits' — historically assessed at double the market rent as a punitive measure for unauthorized retention of possession; Scots courts have moderated this in modern practice, and a claim based on reasonable open market value is the standard approach.

• County court possession claim: include claim for mesne profits with a specific daily rate in the particulars of claim — this is routinely granted alongside the possession order
• Post-order enforcement: if defendant remains after the possession order, enforce via warrant of possession; mesne profits continue to accrue daily and can be recovered as a judgment debt
• Overnight accrual: mesne profits begin accruing from the moment the tenancy ends and the former tenant loses the right to occupy — they do not require a court order to start accruing
• Negotiated exit: where landlord and former tenant agree an exit date, it is prudent to specify in writing that the former tenant will pay mesne profits at an agreed rate until that date
• Scotland — violent profits: Scottish equivalent of mesne profits; traditionally double the market rent for unauthorized retention; modern Scots courts apply open market value as the baseline; take specialist Scottish legal advice

Frequently asked questions