City of London Corporation v Secretary of State for the Environment and Watling Street Properties Ltd (1971) 23 P&CR 169

City of London Corporation v Secretary of State for the Environment and Watling Street Properties Ltd (1971) 23 P&CR 169 is an early authority referred to in later planning-condition cases. The precise wording of a permission matters when deciding whether a change to another use is prevented despite the ordinary operation of the Use Classes Order.

The complete original law report or judgment is not currently held in Planning Geek’s protected library. This account therefore draws on how the case was described by later courts, principally the Court of Appeal in Dunnett Investments Limited v Secretary of State for Communities and Local Government and East Dorset District Council [2017] EWCA Civ 192, rather than claiming to reproduce the original reasoning.

The reported condition and its legal effect

Published case summaries describe permission for the change of use of a warehouse to an employment agency, granted subject to a condition that the premises be used as an employment agency only. In Dunnett, the Court of Appeal recorded that the wording considered in the City of London case was characterised as “… and for no other purpose…”, which Farquharson LJ in Dunoon regarded as far more emphatic than words limiting a permission to a particular purpose.

Subsequent legal accounts have treated the 1971 decision as an example of wording sufficiently emphatic to restrict the use-change freedoms that would otherwise have been available under the Use Classes Order. That is the reported proposition. The original facts, procedural history and full terms of the order have not been independently checked against the report itself.

An important distinction is between a planning condition defining the permitted use and an additional restriction excluding other uses. Identifying a particular use does not, without more, necessarily deprive the owner of statutory rights which would otherwise apply. Express words such as ‘for no other purpose’ may carry greater significance when interpreted in the context of the permission as a whole.

How the 1971 decision was considered in later cases

In Dunoon Developments Ltd v Secretary of State for the Environment and Poole Borough Council, subsequently reported at (1993) 65 P&CR 101, the Court of Appeal considered the effect of language limiting the use of land. The later Court of Appeal judgment in Dunnett records that Farquharson LJ contrasted the more limited words in that case with the emphatic restriction considered in the City of London authority.

The Dunnett Court of Appeal judgment, handed down on 29 March 2017, concerned an office building subject to a condition referring to the former Class B1 and prohibiting any other purpose without express planning consent from the local planning authority.

In explaining why the condition in Dunnett excluded the relevant General Permitted Development Order (GPDO) right, Hickinbottom LJ referred to the comparison made with the 1971 City of London case. That does not mean the earlier case necessarily concerned the same statute, the same planning process, or the same wording as the later dispute. The older authority was part of the interpretative comparison.

Commentary on later cases has also referred to the 1971 decision as an example of a restriction operating against a change of use which would otherwise be permissible under the Use Classes Order. Such retrospective descriptions help establish the recognised significance of the authority, but they are not a substitute for the complete original judgment.

What can and cannot be taken from the case

The reported principle is not that every condition containing a use-class label excludes permitted development. Different conditions must be construed individually, taking into account their wording, purpose, legal context and the permission of which they form part.

Equally, the existence of a national development order should not be treated as conclusive where an applicable earlier permission contains an incompatible restriction. Article 3(4) of the current GPDO prevents development contrary to certain planning conditions. The exact analysis remains sensitive to the rights sought and how the historic condition is written.

The City of London authority is useful when advising on older commercial premises, including the interpretation of words such as ‘only’ and ‘for no other purpose’. It should be used alongside the directly applicable modern judgments rather than as a shortcut to deciding the effect of all planning conditions.

For a contemporary example, the Mole Valley prior approval appeal involving Ashcombe House in Leatherhead, decision 6014091 dated 12 November 2026, considered a condition from 1983 and cited both the City of London authority and Dunnett. The Inspector held on that specific wording that a proposed five-flat Class MA conversion required express planning permission.

Source status and citation

The reported citation is (1971) 23 P&CR 169. Later judgments shorten the case name to City of London Corporation v Secretary of State for the Environment; the ninth edition of Architect’s Legal Handbook identifies Watling Street Properties Ltd as an additional party. Because the original report has not been obtained, the precise party styling, court, judgment date, judicial panel and full reasoning remain unverified.

Until the original is obtained and verified, this summary should be read as a carefully limited explanation of the case’s treatment by subsequent courts. It does not claim that Planning Geek holds the full report or offers a protected download of it.