Grosvenor Developments v Peter Parsons & Anor

Contractual documents forming one arrangement must be construed together, but a special rider may operate as a contractual variation of standard-form lease provisions and prevail between the parties over inconsistent wording. No special formula is required to create an indemnity. A promise to be responsible for a defined category of losses may suffice. An undertaking covering all costs and expenses associated with planning obligations can include a service-charge shortfall caused by a restriction on recovering increased charges from affordable-housing occupiers. The fact that the tenant initially pays the charge does not prevent a personal right of indemnification. Commercial common sense and the arrangement’s purpose assist the unitary and iterative construction exercise.

This was an appeal by Grosvenor Developments Ltd against HHJ Karen Walden-Smith’s judgment dated 25 June 2025 concerning service-charge liability for a flat in a development subject to an agreement under section 106 of the Town and Country Planning Act 1990.

The Agreement for Lease included a standard-form Draft Lease and a Rider. The Lease allocated shortfalls arising from limits on charges to affordable-housing occupiers among other tenants, while the Rider stated that the seller would be responsible for costs and expenses associated with the planning obligations, subject to carve-outs. The judge treated the Rider as an indemnity. The appeal challenged that construction and argued that the relevant liability was not a cost or expense. The central issues were whether the Rider modified the Draft Lease scheme and whether the shortfall fell within its wording.

Appeal dismissed. The Rider was a contractual indemnity and covered the relevant service-charge liability. The existing direction that there be no order as to costs remained in place.

1. The Draft Lease and Rider formed part of the same Agreement for Lease. Their apparent tension did not require the Rider to be subordinated to the standard-form lease provisions. The proper construction was that the Rider represented a special contractual arrangement which modified, and as between the parties overrode, contrary provisions including clauses 11.4 and 12.4. This involved reading the documents together, not ignoring the Draft Lease.
2. Contractual construction is a unitary and iterative exercise. The court considered the disputed language, the relevant contractual context, the carve-outs and the commercial purpose of the arrangement. The approach was consistent with Arnold v. Britton [2015] AC 1619 and Wood v. Capita Insurance Services Limited [2017] UKSC 24.
3. No special language was needed to create an indemnity. A promise to satisfy a defined category of another party’s losses could amount to an indemnity. The Rider’s confirmation that the seller would be responsible for all costs and expenses associated with performance of the obligations under the section 106 agreement was wide enough to create a future contractual obligation. The court applied the principle described in Pitts v. Jones [2007] EWCA Civ. 1301.
4. The restriction on increasing affordable-housing service charges beyond the RPI Variation prevented the relevant liabilities from being shared among all occupiers in the usual way. That inability to recover the full amount created a cost associated with performance of the planning obligations. It therefore fell within the Rider, even though the tenant first paid the service charge under the Lease.
5. The Rider imposed a personal contractual obligation. It did not attach to the Flat or pass to a purchaser, and it subsisted only while the respondent remained in occupation.

• High Court (Property, Trusts and Probate List): On appeal from HHJ Karen Walden-Smith’s judgment dated 25 June 2025, the appeal was dismissed. [2026] EWHC 1827 (Ch)