Skip to main content
Official casework recordDismissedCurrent release

Appeal 3375728

Public case and site metadata stored from the official casework database, including fields that were empty in the source release.

A clearer next step

See how Inspectors approached issues like yours

Bring your planning decision into a private workspace. We separate the disputed points, then match them with source-located Inspector reasoning from similar appeals.

  • See which issues the decision appears to turn on
  • Compare the facts and open the full appeal records

One private comparison

How the refusal review works

One-off service · No subscription

Similar appeals are evidence to inspect, not a prediction of your outcome.

Official decision document

The decision, section by section

6 sections

Read the development description and the Inspector’s text from the official decision PDF in source order. Source headings are retained where available. Personal and contact details are removed by an automated privacy filter; this is source material, not Rules for You analysis.

Section 01

Development description

a single storey rear extension.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    Main Issue

    The main issue is whether the proposed development would be permitted development under Schedule 2, Part 1, Class A of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) (the GPDO).

  3. Section 04

    Reasons

    The appeal property is a semi-detached dwelling in a short row of similar properties. It has a single storey adjunct to the rear elevation, which, from my observations on site and in the absence of any substantive evidence to the contrary, appears to form part of the original property. There is no dispute that permitted development rights for extensions to the property remain intact.

    Development is not permitted by Schedule 2, Part 1, Class A, paragraph (j) (iii) of the GPDO if the enlarged part of the dwellinghouse would extend beyond a wall forming a side elevation of the original dwellinghouse and would have a width greater than half the width of the original dwellinghouse.

    The Permitted development rights for householders: technical guidance (September 2019) sets out that a wall forming a side elevation of a house will be any wall that cannot be identified as being a front wall or a rear wall and that houses will often have more than two side elevation walls. The guidance is clear that, where an extension fills the area between a side elevation and a rear wall, then the restrictions on extensions beyond rear walls and side walls will both apply. Accordingly, in this case, in addition to projecting beyond the rear wall, the proposed extension would project beyond a wall forming a side elevation of the original dwelling house for the purposes of Schedule 2, Part 1, Class A.1(j) of the GPDO.

    The appellant’s submissions indicate that the extension would be 2.1m wide at the furthest point from the dwelling, which is less than half the width of the original dwelling. However, by virtue of the staggered nature of the side wall of the existing rear projection, the part of the proposed extension immediately to the rear of the dwelling, would project a greater distance from the side wall and would have a width greater than half the width of the original dwellinghouse.

    I therefore conclude that, as the enlarged part of the dwellinghouse would extend beyond a wall forming a side elevation of the original dwellinghouse and would have a width greater than half the width of the original dwellinghouse, the appeal scheme would not constitute permitted development as set out in Part 1, Class A of GPDO. Consequently, express planning permission would be required for the extension, as proposed.

  4. Section 05

    Other Matters

    The effects or otherwise of the development on the appearance of the dwelling or the street scene are not matters for consideration in the determination as to whether a proposed development would represent permitted development. Moreover, the provisions of the GPDO do not allow for a flexible approach to the interpretation of the regulations.

    My attention is drawn by the appellant to a rear extension to the neighbouring property at 1 [name], which it is suggested is identical to the appeal proposal and the Council deemed prior approval was not required. However, I have determined the appeal on its own merits based on the evidence before me.

  5. Section 06

    Conclusion

    For the reasons set out above, the appeal is dismissed.

Planning inspector and document dates

The official casework attribution is grouped under a one-way keyed hash and shown only by its local identifier. Decision-letter dates and page references are extracted by fixed first-page rules and checked against that authoritative record.

  • Appeal Decision

    Extracted inspector · page 1
    Inspector attribution ID 4746No official casework-database value to compare
    Extracted decision date · page 1
    20 February 2026Matches the official casework database
    Extracted site visit dates
    17 February 2026 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3375728
Application reference
PL/25/3597/PNE
Lead case reference
Not recorded
Planning authority
Buckinghamshire Council - South Bucks Area *
Planning authority code
E07000006

Casework details

The casework, procedure, development and linking details supplied by the official record.

Casework type
Householder (HAS)
Procedure
Written Representations
Development type
Householder developments
Appeal type reason
3. Refused prior approval of permitted development rights
Appeal reason
Refusal
Type detail
Unknown
Jurisdiction
Transferred
Link status
Not Linked

Site and development

Published appeal-site measurements and planning designations, without the withheld precise location fields.

Site area
Not recorded
Floor space
9 m²
Number of residences
0
Site in Green Belt
No
Agricultural holding
No
Affects setting of a listed building
Not recorded
Historic building grant made
Not recorded
Relates to a conservation area
Not recorded
Flooding is an issue
Not recorded
Site within an AONB
Not recorded
Site within an SSSI
Not recorded

Decision and dates

The published outcome and every imported case date.

Official decision
Dismissed
Decision category
Dismissed
Received date
12 November 2025
Valid date
12 November 2025
Start date
17 November 2025
Planning authority decision date
20 October 2025
Appeal decision date
20 February 2026

Case administration

Published recovery, call-in, costs and enforcement information for this case.

Redetermined
No
Bespoke
No
Date recovered
Not recorded
Date not recovered or derecovered
Not recorded
Call-in date
Not recorded
Costs applied for
Not recorded
Enforcement grounds count
Not recorded
Enforcement grounds
Not recorded

Source and catalogue history

When this record appeared in the rolling official release and when the catalogue stored it.

Source
Planning Inspectorate casework database
Source data system
Horizon
Dataset status
Current release
Catalogue record ID
84725
First seen
20 August 2026 at 14:25
Last seen
20 August 2026 at 16:29
Removed from release
Not recorded
Record created
20 August 2026 at 14:25
Record updated
24 August 2026 at 16:21