Estoppel rescues a break

A judgment handed down on 20 October 2026 provides helpful guidance to landlords and tenants in relation to the exercise of break clauses.

Sterling House Ltd v International Baccalaureate Organisation (UK) Ltd [2026] EWHC 2680 (BP) highlights the circumstances in which a landlord may be estopped from relying on a tenant's failure to satisfy the payment conditions of a break clause, following the tenant's reliance on an incorrect rent invoice issued by the landlord's managing agents.

Background

The tenant sought to exercise a break clause to terminate its lease on 23 February 2026. The break was conditional on all outstanding annual rent and insurance rent having been paid.

Ahead of the break date, the tenant requested an invoice from the landlord's managing agents to ensure that all sums were paid. The agents issued an invoice covering rent only up to the break date, which the tenant paid.

The landlord subsequently brought a claim arguing that the break was ineffective because approximately £45,000 in annual rent remained outstanding, as the lease required rent to be paid quarterly in advance. A further £2,300 in insurance rent also remained unpaid following a demand issued shortly before the break date.

High Court decision

The High Court dismissed the landlord's claim, holding that it could not rely on the outstanding sums to invalidate the break.

In respect of the annual rent, the Court held that the managing agents' invoice amounted to a clear representation of the amount payable. The tenant had reasonably relied on that representation, having specifically requested the invoice to ensure compliance with the break conditions. The landlord was therefore estopped from relying on the outstanding annual rent.

As to the insurance rent, the Court held that the estoppel also extended to that sum. Alternatively, the demand, delivered at 3pm on the Friday before the Monday break date, did not afford the tenant a reasonable opportunity to arrange payment. The landlord was therefore unable to rely on the outstanding insurance rent to invalidate the break.

Implications

Sterling House demonstrates that, although break clauses generally require strict compliance, a landlord may be prevented from relying on non-compliance where its conduct has led the tenant reasonably to believe that the relevant conditions have been satisfied.

Landlords and managing agents should therefore ensure that invoices issued ahead of break dates accurately reflect the tenant's contractual obligations. They should also allow tenants a reasonable opportunity to arrange payment of sums payable on demand.

For tenants, the decision highlights the potential availability of an estoppel argument where they have reasonably relied on representations made by the landlord or its agents. However, tenants should not assume that incorrect invoices will automatically excuse non-compliance, and should continue to ensure that all break conditions are strictly satisfied.