A barn conversion appeal in Wiltshire has succeeded after an Inspector concluded that accommodation inside an existing stable building was not inappropriate development in the Green Belt. Inspector R Kent allowed appeal 6009637 at The Stables, Doctors Hill, near Corsham, on 21st October 2026.
The Inspector was unconvinced that horses at the premises required somebody on site 24 hours a day. Older local countryside policies pointed against the residential use, but the August 2026 National Planning Policy Framework provided a different route through the planning balance.
For me, the significant point is that a weak case for essential rural worker accommodation did not automatically defeat the appeal. The status of an existing building, the weight carried by older local policies and the actual harms of residential use had to be assessed separately.
What the barn conversion appeal involved
Marilyn Harford challenged Wiltshire Council’s refusal of planning application PL/2025/09732 for the residential use of part of an existing barn used to keep horses. The land was Green Belt, within the Cotswold National Landscape and near an internationally protected site important for bats.
The residential accommodation occupied the southern end of the building, with its own external door, a connecting door to the stables and rooms for cooking, living, sleeping and bathing. The conversion had already happened when the Inspector visited on 30 September 2026.
The Inspector treated the application as one for permission for development already carried out under section 73A of the Town and Country Planning Act 1990. Describing a proposal as retrospective does not give it special permission or sidestep the normal planning tests.
Green Belt policy GB7 makes the difference
The starting point for this barn conversion appeal was the distinction between creating a new building and reusing an existing lawful one. Policy GB7 in the August 2026 Framework identifies development that is not inappropriate in the Green Belt. The council had not shown that the building was unlawful or lacked permanent and substantial construction.
The work altered the building internally without increasing its original size. Reuse could qualify under GB7 even where only part of an existing building changed to residential use. The Inspector therefore found the accommodation was not inappropriate Green Belt development.
That was an important threshold, not an automatic approval. In particular, the Inspector did not find that the land was grey belt. Nor does this decision authorise a new standalone home on undeveloped paddock land. These distinctions should not disappear when the appeal is used as a precedent.
Why the rural worker argument fell short
Wiltshire’s Core Strategy restricts development beyond settlement boundaries and identifies particular situations where rural buildings can be reused. The site was outside Ashley’s defined limits, although close enough to the village that the Inspector did not describe it as isolated.
There was no sound evidence showing that alternative employment, tourism, cultural or community uses were impractical. The Inspector therefore identified conflict with local rural-building policy. But that policy was materially more restrictive than national GB7 on reuse, reducing the weight of the conflict.
Under saved North Wiltshire Local Plan Policy H4, the Inspector also considered whether there was an essential need for a rural worker to live on site. The appellant had described a mare losing a foal through birthing complications in 2023 and another horse suffering colic. These incidents did not establish a need for continuous overnight supervision.
The barn conversion appeal therefore did not win because essential functional need had been demonstrated. The Inspector considered that Policy H4 was materially inconsistent with national policy on reuse of buildings and gave its conflict very limited weight. That is a narrower and more useful lesson than claiming that rural worker tests no longer matter.
Travel impacts and the housing shortfall
The barn conversion appeal also raised transport questions. The occupier would need a private car to reach many everyday services. The Inspector acknowledged conflict with local sustainable transport objectives, but considered the additional traffic small in the context of journeys already undertaken to care for the horses at the stables.
The council could demonstrate only 2.8 years of deliverable housing sites. The single one-bedroom unit attracted substantial positive weight under housing policy HO7, while modest local spending and fewer journeys to attend to the horses brought moderate economic and environmental benefits.
The Inspector found conflict with the development plan overall. However, Annex A of the Framework meant that materially inconsistent local provisions were given little weight. National policy S5 offered a favourable balance for qualifying development outside settlements unless the benefits were substantially outweighed by adverse effects.
Although the residential use already existed, there was no compelling evidence that the unauthorised development had been intentional. The Inspector considered retrospective development policy DM8, but did not find that the limited harm outweighed the benefits.
Landscape, living conditions and bats
The Inspector found that the external appearance of the timber-clad building changed very little. Sloping ground, hedgerows and other planting screened it in the Cotswold National Landscape. The existing stables and exercise area were already part of the landscape, and the small residential use did not create harmful visual intrusion.
The decision also addressed the nearby Bath and Bradford on Avon Special Area of Conservation, protected partly for bat populations. No external building additions or vegetation removal were proposed. The Inspector screened the very small-scale use as unlikely to have significant effects on the protected site.
The Inspector was satisfied with living space, noting a 19.3 square metre kitchen and living area, a 15.6 square metre bedroom and a 14.3 square metre bathroom. Those figures describe this accommodation and should not be misread as universally approved minimum standards.
What the appeal actually permits
This barn conversion appeal is not consent for an unrestricted market home. The permission limits occupation to a person solely or mainly working, or last working, in the keeping of horses at The Stables, together with qualifying surviving partners and resident dependants.
The use must stay within the area shown on the approved plans, and no external lighting may be installed on the residential accommodation. Although the appellant suggested a three-year temporary period, the Inspector imposed the occupation restriction rather than granting the wider unrestricted use.
What applicants should learn from the barn conversion appeal
There are three distinct questions here. First, is a proposal genuinely reuse of an existing building within GB7? Secondly, how consistent are the relevant adopted policies with today’s national framework? Thirdly, do landscape, ecology, transport, living conditions or other impacts still justify refusal? A favourable answer to one is not a substitute for answering the others.
For a rural building proposal, document the lawfulness and structure of the original building, any increase in size, its actual use and the surrounding constraints. If claiming an essential worker need, provide real operational evidence rather than assuming that proximity to livestock is enough. This barn conversion appeal shows that a different policy argument may succeed, but only on its own verified facts.
See Planning Geek guides to Green Belt policy, settlement boundaries and retrospective permission. The official Planning Inspectorate appeal record identifies this case; the Inspector’s decision was issued on 21st October 2026. The appeal decision is also available on AppealBase.
0 Comments