A Dartford grey belt appeal has quashed an enforcement notice against a residential traveller caravan site, despite an inspector expressly finding that the unauthorised development had been carried out intentionally. Retrospective planning permission was granted on 8th October 2026 for land near Longfield, Kent.
Dartford Borough Council had required the cessation of residential caravan use, removal of caravans, hardstanding and close-boarded fencing, and restoration of the land. The notice concerned a site beside Homefield on Green Street Green Road. Inspector Elizabeth Pleasant instead found that the national grey belt provisions provided a route to permission.
The outcome matters for enforcement and Green Belt practitioners because the inspector did not simply excuse the breach. Deliberate unauthorised development attracted substantial negative weight, while the unmet need for traveller pitches and the site’s sustainable location carried weight in favour. Detailed remedial conditions determine whether the permission can ultimately be retained.
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Dartford grey belt appeal: why the notice fell
Appeal APP/T2215/C/26/3378742 was brought under section 174 of the Town and Country Planning Act 1990. The May 2026 notice alleged residential stationing of caravans or mobile homes and associated operational works involving hardstanding and fencing. The appellant relied on ground (a), creating a deemed application for planning permission, and ground (g), concerning the compliance period.
The council had resolved during the appeal process that permission should be granted subject to controls, and the originally intended hearing was replaced by written representations. Interested parties had a further opportunity to comment. The inspector still undertook an independent assessment of the Green Belt, landscape, protected tree, groundwater and other relevant matters.
The formal decision allowed the ground (a) appeal, quashed the enforcement notice and granted permission for the development already undertaken, subject to conditions. Once that permission was granted, the inspector did not need to determine ground (g). The decision does not imply that any other unauthorised residential caravan site in Dartford will receive the same outcome.
Grey belt and traveller pitch supply
The land lies in the Metropolitan Green Belt on the edge of Longfield. The inspector considered the national definition of grey belt, focusing on whether land contributed strongly to specified Green Belt purposes. The site was not considered to make a strong contribution to preventing unrestricted sprawl or neighbouring towns merging, nor to preserving the setting of historic towns.
The inspector accepted that there was some countryside encroachment, but assessed its scale against the much larger extent of the remaining Green Belt across the plan area. This limited development would not fundamentally undermine the purposes of the remaining Green Belt, taken together. That site-level and plan-area assessment was central to the result.
The authority could not demonstrate a five-year supply of deliverable Gypsy and traveller sites. That established an evidenced unmet need for pitches. Shops, services, pavements, bus links and Longfield railway station were within reasonable reach, supporting the conclusion that the site was in a sustainable location under national transport policy.
The scheme was not major development, so the national golden rules for major housing development were not triggered. The inspector found that the relevant requirements of national Policy GB7(g) were met and that the proposal was therefore not inappropriate development in the Green Belt. She consequently did not need to apply a separate very-special-circumstances balance against Green Belt inappropriateness.
The practical lesson is the importance of testing each limb of the current national grey belt route before assuming every retrospective residential proposal faces the traditional Green Belt exceptional-case test. The particular development type, local need, accessibility and extent of remaining Green Belt are decisive factual questions.
Unauthorised development still counted against the scheme
The inspector was explicit that the development had been carried out without permission despite knowledge that consent was required. Under national Policy DM8, intentional unauthorised development was given substantial weight against permission. That point was not concealed by the site becoming eligible under the grey belt policy.
Nevertheless, the benefit of supplying pitches for a Gypsy and traveller family, against an acknowledged shortfall, significantly and demonstrably outweighed that negative consideration. The inspector considered the proposal sustainable development in the particular circumstances, applying the revised August 2026 national planning framework.
Enforcement remains remedial rather than purely punitive. That does not legitimise proceeding without permission: planning risks, expense, evidential burdens and the potential loss of permission remain significant. A retrospective application can still fail where the national policy route, site characteristics or mitigation are not sufficient.
The inspector acknowledged human-rights duties and the personal circumstances of occupiers, but did not need to give those matters decisive weight because the development had already passed the substantive planning balance. This was principally a planning-policy decision with strong conditions, not an outcome dependent on exceptional personal circumstances.
Groundwater, protected walnut tree and landscaping
The site is close to an active landfill and within Groundwater Source Protection Zone 3. The Environment Agency objected in the absence of adequate evidence about imported hardstanding materials and future water or sewage arrangements. The inspector accepted that a stringent condition requiring drainage and contamination-protection details could address those risks.
A protected walnut tree at the neighbouring property was another concern. A professional post-development inspection concluded that changes to the root environment were likely to be minor. The council’s arboricultural adviser accepted the report’s conclusions, subject to protecting the tree and prohibiting further hardstanding that might affect its root protection area.
The inspector also considered rural character and landscape appearance. Although caravans, fencing and hard surfacing had a degree of urbanising effect, the site was small, related to existing development and could be screened with appropriate planting. Details are not merely advisory: a site development scheme is required under a tightly drafted condition.
A suggested additional biodiversity gain requirement was not imposed. The inspector treated the retrospective deemed application as outside the statutory biodiversity net gain regime applicable to qualifying new applications. Practitioners should check the exemption and timing before assuming similar proposals carry the same treatment.
Strict conditions may determine whether permission survives
The permission restricts the site to two pitches and no more than three caravans, including no more than two static caravans or mobile homes. It also limits occupation to the traveller categories specified in the condition. Commercial activities and parking or storage of vehicles over 3.5 tonnes are prohibited.
Within three months of the decision, a development scheme must be submitted, covering layout, hardstanding, lighting, foul and surface water drainage, waste facilities, landscaping and tree-related safeguards. The condition also includes an 11-month approval or valid-appeal milestone, followed by implementation according to an approved timetable.
Failure to satisfy those steps triggers cessation and removal requirements under the permission’s conditional structure. This makes the approval materially different from an unconditional endorsement of what was already on the ground. The inspector considered these post-permission controls necessary precisely because the works had already taken place.
The decision can be read in full as APP/T2215/C/26/3378742, with the Planning Inspectorate case record providing the official reference. Planning Geek has also covered a distinct Colchester traveller costs appeal and a Cheshire grey belt housing appeal, each illustrating different questions under current policy.
For landowners, authorities and advisers, the wider significance is that grey belt eligibility, genuine identified need and enforceable environmental safeguards can support permission even where deliberate unauthorised development counts substantially against it. The case remains site-specific and should not be misreported as an automatic regularisation route.








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