Massingham v Secretary of State for Transport, Local Government and the Regions [2002] EWHC 1578 (Admin)
Massingham concerns a mobile home, a seasonal occupancy condition and an unsuccessful attempt to obtain a lawful development certificate. The High Court upheld the Inspector’s conclusion that the particular mobile home was not a building for planning purposes.
When we are checking whether a caravan has become a building, we need to look at the physical facts and the legal question being asked. A concrete base or mains services do not automatically settle the answer. Equally, this judgment does not say that a caravan can never become a building.
The court also explained why a certificate of lawfulness records an existing legal position. It does not itself grant planning permission or create a new right to use the land.
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- Neutral citation
- [2002] EWHC 1578 (Admin)
- Court
- High Court, Queen's Bench Division, Administrative Court
- Judgment date
- 18th June 2002
- Judge
- Mr Justice Forbes
- Case number
- CO/790/2002
What happened at Bosmere Road?
Anthony Robert Massingham had placed a mobile home on a plot at Bosmere Road, Eastoke, within Havant Borough Council’s area. Planning permission granted in 1981 allowed the continued siting of three caravans, subject to a condition restricting occupation to human habitation between 1st March and 31st October each year.
The original site had subsequently been divided. Mr Massingham said that he moved his mobile home onto his plot in September 1995 and used it as a second home.
He sought a certificate establishing that the use was lawful without compliance with the seasonal condition. Alternatively, he argued that placing the mobile home on the site amounted to operational development, or a change of use to a single dwellinghouse, attracting the shorter enforcement period then available.
The council did not determine the application within the statutory period. An Inspector dismissed the resulting appeal. Mr Massingham then challenged that decision under section 288 of the Town and Country Planning Act 1990. Forbes J dismissed his court application on 18th June 2002.
Why the mobile home was not a building on these facts
The Inspector had examined how the unit arrived, how it was supported and whether it was attached to the land. It had been moved onto the site in one piece. Its wheels remained, one corner was supported by a jack and the other corners rested on loose columns of concrete blocks and pieces of wood.
Although concrete slabs had been altered to create a larger supporting area, there was no claim that the mobile home was attached to that slab. Raising it because of the possibility of flooding did not, in the Inspector’s assessment, establish permanence or attachment.
At judgment paragraphs 19 and 20, Forbes J approved that reasoning. He applied the approach discussed in Measor v Secretary of State: whether a structure is a building for development control is a question of fact and degree. There was ample evidence for the conclusion reached about this particular mobile home.
The distinction matters. Massingham supports a careful examination of the unit and its relationship with the land. It does not provide a universal exemption from planning control for anything described as a caravan, and it does not establish that every unit resting on blocks must be treated in the same way.
The seasonal condition remained effective
Mr Massingham argued that the condition was invalid because it referred to the caravan rather than the caravan site, and because its wording was allegedly imprecise or ambiguous.
At paragraph 13, the judge upheld the Inspector’s rejection of those arguments. The Inspector had understood the challenge and had reached a legally correct conclusion about the condition.
The Inspector also recorded that Mr Massingham could not show the ten years of non-compliance then required. That finding appears in the Inspector’s paragraph 9, quoted within judgment paragraph 11.
For anyone considering a certificate of lawfulness, the practical starting point is the actual permission, its conditions and evidence of what has happened on the land. The fact that a seasonal restriction is inconvenient does not establish that it is invalid or that unrestricted occupation has become lawful.
Massingham and the role of a lawful development certificate
The claimant also relied on human rights arguments. At paragraphs 14 and 15, the court accepted the submission that granting or refusing a certificate did not create or remove rights. The judgment describes the certificate in these terms:
“The certificate, if granted, is declaratory only of certain existing rights of the party in whose favour it is made.”
In other words, the certificate records the legal position. It is not a decision to grant a fresh planning permission.
The Inspector had also considered the alleged human rights infringements on the alternative assumption that the relevant rights were engaged. The court upheld that reasoning at paragraphs 15 to 17. We should keep this finding within its context: it concerned the certificate decision and the arguments made in this case. It is not a general statement that human rights can never matter in planning enforcement.
Read the enforcement periods in their historical context
Massingham was decided in 2002. Its discussion of four-year and ten-year enforcement periods reflects the law applied at that time. The claimant’s attempt to rely on the shorter period failed because the Inspector was entitled to reject the alleged operational development and change to a permanent dwellinghouse.
England’s enforcement time-limit rules changed from 25th April 2024, subject to transitional arrangements. Use our current guide to enforcement time limits when assessing a present-day case. The historical timing discussion should not be read as a statement of the current rule for every building or dwellinghouse.
Outcome and practical use
The High Court dismissed the application at paragraph 21. The transcript then records the costs discussion, ending at paragraph 149 with the Secretary of State’s costs summarily assessed at £3,338.
The useful lesson from Massingham is to keep the questions clear: what permission exists, what condition applies, what the physical evidence establishes and what the certificate application actually asks the authority to determine.
The case is also discussed in our report on Community Infrastructure Levy (CIL) appeal 1892711 concerning a residential annexe. That later decision arose under the levy regime, so its statutory context must be kept distinct from this High Court challenge.
Reading the transcript: judgment paragraph 11 reproduces numbered paragraphs from the Inspector’s decision. The Inspector’s quoted paragraph 15 is not Forbes J’s paragraph 15. For the judge’s own findings on the building question, read judgment paragraphs 19 and 20.
Created: 6th November 2026