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Official casework recordDismissedCurrent release

Appeal 3312273

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

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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

described as a proposal to build an extension in the rear for extra room and bathroom. Materials used similar to existing building.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    Main Issue

    The main issue relevant to this appeal is whether the proposal represents permitted development, as defined by 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 appellant’s dwelling consists of an end of terrace dwelling located in a predominantly residential area. The appeal site consists of a broadly triangular shaped plot. This arrangement is reflected on the neighbouring site, which has also been the subject of a previous side extension

    The proposed development was submitted pursuant to the prior notification procedure. This means that it is believed that the proposed development falls within the definition of permitted development and therefore, planning permission is not required. However, prior to commencing development, it is necessary to apply to the relevant Local Planning Authority.

    Although the proposed extension would be broadly triangular in shape in order to reflect the proportions of the appeal site, the proposed development would project beyond the side elevation of the dwelling.

    It has been suggested that the proposal would be an extension from the rear wall of the dwelling. However, the dwelling is accessed from an elevation that faces the public realm. This is the front elevation. Behind this elevation, is a further elevation that features several windows that overlook the garden and a glazed door that provides access into the garden. This is in line with the rear elevations of the adjoining dwellings. Therefore, this wall can be accurately termed as being the rear elevation.

    The elevation that would be extended links the front and rear elevations. Therefore, irrespective of the description used on the application form, and the fact that the wall features a door that accesses the garden, the elevation that is to be extended can be accurately described as being a side elevation. This occurs even though the garden is accessed via the rear elevation of the dwelling.

    Therefore, for a proposed development to fall within the provisions of permitted development, it would be necessary for the proposed extension to be less than half the width of the original house. The evidence before me indicates that the house has not previously been extended to the side. Therefore, I have based my assessment on the dwelling as currently constructed.

    Therefore, when viewed from the rear of the appeal site, the proposed extension would have a projection from the side wall of the dwelling that would be greater than half the width of the house. Consequently, within the provisions of the GPDO, the proposed extension cannot be permitted development.

    I recognise that the proposed extension has an irregular footprint. This means that parts of the extension have a projection of less than half of the width of the existing dwelling. [name] have had regard to this, the evidence before me indicates that the proposed development should be assessed on whether the proposed extension, at any point, exceeds the width of half of the dwelling.

    Therefore, although parts of the proposed extension might fall under this threshold, the development, taken as a whole, would breach the provisions of the GPDO as proposed extension as it would project beyond the maximum threshold for a side extension.

    I therefore conclude that the proposed development would not represent permitted development as defined by Schedule 2, Part 1, Class A of the GPDO.

  4. Section 05

    Other Matters

    Concerns regarding the manner in which the Council considered the planning application fall outside of the scope of this decision.

  5. Section 06

    Conclusion

    For the preceding reasons, I conclude that the appeal should be 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 327No official casework-database value to compare
    Extracted decision date · page 1
    30 June 2023Matches the official casework database
    Extracted site visit dates
    20 June 2023 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3312273
Application reference
22/01439/PRIOR
Lead case reference
Not recorded
Planning authority
Peterborough City Council
Planning authority code
E06000031

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
Planning Appeals - Full
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
Not recorded
Number of residences
0
Site in Green Belt
No
Agricultural holding
Not recorded
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
1 December 2022
Valid date
23 January 2023
Start date
4 May 2023
Planning authority decision date
28 November 2022
Appeal decision date
30 June 2023

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
34871
First seen
20 August 2026 at 14:24
Last seen
20 August 2026 at 16:27
Removed from release
Not recorded
Record created
20 August 2026 at 14:24
Record updated
24 August 2026 at 16:21