Buckingham nine-flat appeal fails on employment and noise

The Buckingham nine-flat appeal has been dismissed despite Buckinghamshire Council demonstrating only 3.73 years of deliverable housing land. An Inspector found that a proposed nine-flat conversion of the Old Telephone Exchange in Buckingham would harm the supply of employment premises and leave future residents exposed to unresolved servicing noise.

Inspector R Kent issued the decision on 8th October 2026 following an appeal against non-determination of planning application 24/03608/APP. The scheme involved a two-storey roof extension accommodating seven flats and conversion of part of the ground floor to provide two more homes.

The decision shows why a positive housing-land-supply balance cannot rescue an inadequately evidenced mixed-use conversion. It also highlights the difficulty of relying on an old acoustic report for a substantially revised design, particularly next to a Royal Mail delivery office operating from early morning.

Why the Buckingham nine-flat appeal was refused

The site is the Old Telephone Exchange at Market Hill, behind Buckingham’s principal retail frontage. A Royal Mail delivery office and other town-centre buildings stand between it and the High Street. The proposal would have produced nine flats through a combination of additional rooftop accommodation and a partial ground-floor change of use.

The council had not determined the application within the prescribed period, so the appeal proceeded under section 78 of the Town and Country Planning Act 1990 without a formal refusal notice. The council nevertheless identified putative grounds of refusal in its appeal evidence.

The two central questions concerned the loss of space suitable for town-centre employment activity and whether residents of the proposed flats would enjoy acceptable living conditions, particularly in relation to noise. Accessibility was examined separately but was not decisive.

An occupied Class E unit undermined the employment case

Part of the ground floor was occupied by a jiu jitsu academy, and the evidence indicated that a two-year tenancy had been agreed. The remaining accommodation had been marketed for employment uses, including Class E and B8, over a significant period.

The appellant relied on a limited response to marketing undertaken since 2020, with more continuous marketing from September 2022. The Inspector nevertheless drew attention to the more recent letting, which demonstrated that part of the property remained attractive for a viable use.

Policy E2 of the Vale of Aylesbury Local Plan seeks specified evidence before employment sites are lost to other uses. The Inspector was not satisfied that the existing use had been shown to be unviable, that relocation issues were addressed or that suitable alternative employment space was substantially oversupplied.

The 2026 Buckingham Neighbourhood Plan mattered

The Buckingham nine-flat appeal was considered under the recently made Buckingham Neighbourhood Development Plan 2026, alongside the wider local plan. Town-centre policy EE1 recognises that housing can contribute to vitality, but also protects an active commercial ground-floor frontage.

Replacing the remaining commercial ground floor with residential accommodation would remove an employment opportunity and reduce the building’s contribution to a mixed town centre. The fact that housing was proposed within walking distance of shops and public transport did not remove these policy concerns.

The Inspector found conflict with Vale of Aylesbury Local Plan policies E2 and S1 and neighbourhood plan policy EE1. The proposal would provide only residential accommodation rather than retaining an appropriate mix of employment and residential floorspace.

Royal Mail operations created a serious noise issue

The nearby Royal Mail delivery office was operational between 04:00 and 18:30, Monday to Saturday. The Inspector recognised that deliveries, sorting and vehicle movements could generate significant noise, particularly early in the morning and at seasonal peaks such as Christmas.

An acoustic assessment was supplied, but it had been prepared for an earlier design and relied on measurements taken in June 2023. It recorded levels of 61.7 dBA at 06:14 and 63.2 dBA at 09:44, with the delivery office loading bay identified as a likely source.

The proposed flats would include habitable rooms and bedroom windows facing service yards. The Inspector could not safely transfer conclusions from the older report to the revised internal arrangement, window layout and overall proposal. The assessment also failed to address potentially greater activity during Christmas.

Noise mitigation could not simply be conditioned later

The Buckingham nine-flat appeal offers a practical lesson on the limits of planning conditions. The appellant suggested that appropriate controls and further technical matters could be secured after permission, but the Inspector required stronger evidence before deciding whether the development itself was acceptable.

National decision-making policy P4 in the August 2026 National Planning Policy Framework requires adequate demonstration that suitable mitigation can be achieved. Here, no updated assessment showed whether the proposed rooms could be protected adequately without altering the scheme.

A condition requiring a fresh noise study would risk leaving an unresolved fundamental design question until after permission. The Inspector was also concerned about the potential for future complaints to place unreasonable restrictions on existing delivery and servicing operations, a familiar agent-of-change problem.

Practitioners should secure a design-specific acoustic assessment before determination when existing activities could materially affect proposed housing. A condition is not a replacement for evidence that the layout is capable of providing acceptable residential accommodation.

Major revised plans raised procedural fairness concerns

The appeal documents included competing revisions of internal floor plans and elevations. The appellant submitted revision E plans with significant changes to the number and arrangement of flats, whereas the council stated that its assessment had been based on revision F.

The Inspector could not establish that all interested parties had been consulted properly on the alternative revision. Referring to the procedural fairness principles illustrated by Holborn Studios v Hackney, the Inspector therefore determined the appeal on the revision F plans.

That was not a freestanding refusal of the application. It established which submitted proposal could fairly be assessed. Applicants should avoid attempting to introduce materially different layouts at appeal without considering the ability of consultees and neighbours to respond.

Accessibility and heritage were not reasons for dismissal

The Inspector considered whether the flats could satisfy accessibility expectations. The appeal materials indicated a level-access ground-floor flat and proposed compliance with relevant Building Regulations standards. On the evidence, a suitable condition could resolve the remaining accessibility details.

The building also lies within the Buckingham Conservation Area, with nearby listed buildings including Christ’s Hospital, 6 Market Hill and the Old Gaol. The Inspector found that the proposal would be largely screened and would not harm the significance or setting of those heritage assets.

These favourable findings did not outweigh the employment and noise conflicts. Describing this as a heritage refusal, or suggesting wheelchair access was the decisive obstacle, would misrepresent the decision and distract applicants from the issues that actually required stronger evidence.

Why a 3.73-year housing supply did not tip the balance

The council could demonstrate only 3.73 years of deliverable housing land, and nine new flats would provide additional homes in a sustainable town-centre location. The Inspector gave substantial weight to that contribution and to making better use of an underutilised building.

Nevertheless, the recently made neighbourhood plan and relevant August 2026 Framework policies required the adverse effects to be considered alongside those benefits. The Inspector applied policies including S4 and S6 and concluded that the harm from loss of employment space and unresolved noise substantially outweighed the housing benefits.

The Buckingham nine-flat appeal therefore demonstrates that a housing shortfall is significant but not decisive. It does not establish that every conversion of an employment building to homes should be refused, nor does it determine a Class MA prior approval application. This was an ordinary full-planning appeal.

Practical consequences for mixed-use redevelopment

Before designing flats over or beside commercial servicing, establish the real pattern of operations and measure representative noise levels. Include early-morning activity, loading, seasonal peaks and the proposed habitable-room locations. Update the technical assessment whenever the layout changes materially.

Where employment space is being lost, provide robust marketing and viability evidence that addresses actual demand, current occupation, relocation potential and the wording of relevant development-plan criteria. Evidence that premises were once vacant may be weakened by a new commercial tenancy.

Consider a design retaining viable ground-floor employment while adding dwellings above. A more balanced mixed-use approach may avoid some policy conflicts, although it would still require acoustic and operational scrutiny. See Planning Geek’s Westminster office-to-flat appeals report for a different fact-specific outcome.

Original decision and its status

The Planning Inspectorate record for appeal 6002808, dated 8th October 2026, concerns application 24/03608/APP. The decision text is also indexed by Appealbase.

The Buckingham nine-flat appeal is an Inspector decision under section 78 rather than a court judgment. Its value lies in the assessment of current employment use, design-specific noise evidence, procedural fairness and how significant housing benefits interacted with recently adopted neighbourhood policy.