A Class Q glasshouse appeal for eight homes has been dismissed after an Inspector found that the proposed works amounted to more than a qualifying conversion. Keeping the primary steel frame did not overcome the extensive new floors, walls and roof needed to create the dwellings.
Inspector B Phillips issued decision 6013639 on 26th October 2026 for a former glasshouse at Beckford Poultry Farm, Ashton Road, Beckford. Wychavon District Council had refused prior approval under the agricultural-building conversion right.
The important finding concerns the works taken together, not a blanket prohibition on converting glasshouses. Even where individual operations appear on Class Q’s list of permitted works, their cumulative extent can mean the project is effectively substantial new construction rather than conversion.
What the Class Q glasshouse looked like on site
The Inspector described a substantial former glasshouse in a severely deteriorated condition. Parts of the steel frame were twisted and deformed, although the applicant’s structural survey attributed that damage to secondary elements affected by storms.
Large amounts of glazing were missing from the roof and all four sides, leaving the structure open to the weather. The low blockwork walls varied in height and had significant gaps. Inside, vegetation covered much of the uneven ground, including trees extending through the frame.
Those observations mattered because the Class Q glasshouse case was not being assessed as an intact building needing ordinary refurbishment. The Inspector compared what physically existed with what would be necessary to make the structure function as homes.
A structural report was part of the submission, but its presence did not establish eligibility by itself. Its description of the required work became important evidence in the assessment of how much new construction would be involved.
Why retaining the frame was not enough
The survey proposed an insulated timber studwork lining and a new concrete floor, with a damp-proof membrane, insulation and screed. New windows and doors would be supported by the internal studwork. New walls, ceilings and internal partitions were also needed.
All glazing would need replacing, and timber slatted cladding would be inserted into the existing steel portal frame. The proposed elevations showed an insulated profiled metal roof over the structure, together with photovoltaic panels.
The Inspector’s conclusion was that, apart from the primary steel frame, all other elements including the floor, side walls and roof would be a mostly new construction
. Those were substantial building elements in their own right.
That assessment defeated the Class Q glasshouse proposal. The question was not simply whether a steel skeleton could physically support a new residential envelope, but whether the existing building was capable of conversion within the scope of the permitted development right.
Allowed operations must still amount to a conversion
Paragraph Q.1(j) identifies building operations which can be undertaken where reasonably necessary. These include installing or replacing windows, doors, roofs and exterior walls, providing services, and certain partial demolition needed for those operations.
However, the Inspector did not treat that list as permission to assemble a largely new building around anything left standing. Even assuming individual elements fell within the list, he found the works collectively extensive and significant.
Planning Geek’s Class Q guide explains the distinction between qualifying conversion works and rebuilding. The current Class Q legislation should be read as a whole, including its description of development and the limitations on the operations.
The Class Q glasshouse decision is therefore not a finding that replacing a roof, adding walls or forming a floor will always be fatal. It illustrates why the amount and function of the fabric retained, the existing condition and the complete package of proposed works matter together.
A detailed structural appraisal should support that assessment rather than merely describe a technically achievable construction method. A project can be capable of being built without being a conversion which qualifies for this particular planning route.
The Inspector did not decide every council objection
Wychavon had raised other concerns. These included evidence of the site’s relationship with an established agricultural unit on the relevant date, the proposed dwelling sizes, the inclusion of solar panels and flood risk.
Those matters appeared among the council’s reasons, but they were not all determined on appeal. Once the Inspector found that the building operations failed the Class Q test, addressing the remaining issues could not change the outcome.
It would therefore be inaccurate to report that this Class Q glasshouse appeal established that solar panels were prohibited, proved the building’s agricultural history inadequate or determined that the eight homes were too large. The decision explicitly left those matters unresolved.
The distinction between a council objection and an Inspector’s finding is particularly important when using an appeal as an example for another scheme. A list of disputed matters at the start of a decision is not a list of conclusions.
Eight homes were proposed, but the number was not the decisive point
The application was for eight dwellinghouses, with the operations needed to convert the structure. The Inspector dismissed it because the physical works fell outside the permitted development route, not simply because multiple homes were proposed.
Meeting numerical limits would not have answered that problem. Equally, reducing the number of homes without materially changing the necessary building works would not, by itself, establish that a subsequent scheme qualified. The statutory requirements need to be addressed independently.
The Class Q glasshouse refusal also does not determine whether a different proposal could obtain full planning permission. That would involve a separate application and assessment. The present decision grants no approval for the refused works and should not be treated as authorising their commencement.
The practical lesson for conversion projects
Before relying on Class Q, the drawings and structural evidence need to tell a coherent story about the building that exists, what will remain and what must be created. Photographs, survey conclusions and proposed construction details should be consistent rather than describing different starting points.
At Beckford, the survey and the site observations showed that most major elements would need to be newly constructed. The Inspector assessed that reality cumulatively and found that the proposal was not permitted development. Retention of the primary frame alone did not settle the issue.
Decision and sources
The source is Planning Inspectorate appeal 6013639. The Wychavon application record W/26/01119/GPDQ also records the eight-home proposal and dismissed appeal. The short quotation is Planning Inspectorate material reproduced under the Open Government Licence v3.0.
The appeal decision is also available on AppealBase.
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