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Official casework recordDismissedCurrent release

Appeal 3324157

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

9 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

descried as being for a single storey rear extension and floor plan redesign at [site address] , [postcode] .

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    Appeal Procedure

    The site visit was undertaken by a representative of the Inspector whose recommendation is set out below and to which the Inspector has had regard before deciding the appeal.

  3. Section 04

    Preliminary Matters

    Under Article 3(1) and Schedule 2, Part 1, Class A of the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended (the GPDO), planning permission is granted for the enlargement of a dwellinghouse subject to limitations and conditions. Where an application is made for a determination as to whether prior approval is required for development which exceeds the limits in paragraph A.1(f) but is allowed by paragraph A.1(g) to Part 1, paragraph A.4(3) provides that the local planning authority may refuse the application where it considers that the proposed development does not comply with the conditions, limitations or restrictions that are applicable to such permitted development.

  4. Section 05

    Main Issue

    Whether the proposed development 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.

  5. Section 06

    Reasons for the Recommendation

    The appeal property is a two-storey semi-detached dwelling. A small but distinct projection is located at the rear, shown on the submitted plans as part of the existing kitchen. The projection is of matching materials and design to that of the appeal property. This architectural feature is present on the surrounding dwellings. The rear projection therefore, more likely than not, forms part of the original dwelling rather than being a later addition. The proposal would replace part of this rear projection, extending across almost the entirety of the rear elevation of the host dwelling.

    Page 22 of The Permitted Development Rights for Householders: Technical Guidance (2019) (the guidance) clarifies 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. Houses will often have more than two side elevation walls, as illustrated on an accompanying image on page 22 of the guidance.

    The projection of the kitchen to the rear creates a side elevation for the purposes of the GPDO. The limitations to permitted development are based on the original dwellinghouse and apply even if part of the original wall is to be removed. The proposed development would extend beyond a wall forming the side elevation of the rear projection and have a width greater than half the width of the original dwellinghouse. Therefore, the proposal would fail to comply with [name].1.(j)(iii) of the GPDO. As such, the proposals would not satisfy the criteria to be permitted development, as defined by the above part and class.

  6. Section 07

    Other Matters

    The appellant has referred to other extensions within the area. [name] have not been supplied with any further details I cannot, as a result, be certain that they benefit from deemed or express planning permission. In any event, the appeal scheme seeks prior approval for an extension under the permitted development regime which requires compliance with explicit criteria rather than a balance of harm and/or development plan conflict with material considerations as would be the case of one seeking express planning permission. My conclusions do not therefore change.

  7. Section 08

    Conclusion and Recommendation

    For the reasons given above, the appeal scheme would not satisfy the explicit limitations and exceptions of the above mentioned legislative provisions. The appeal should therefore be dismissed.

  8. Section 09

    Inspector’s Decision

    I have considered all the submitted evidence and my representative’s report and, on that basis, I dismiss the appeal.

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 1895No official casework-database value to compare
    Extracted decision date · page 1
    2 November 2023Matches the official casework database
    Extracted site visit dates
    26 September 2023 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3324157
Application reference
00215/132/PA3
Lead case reference
Not recorded
Planning authority
London Borough of Hounslow
Planning authority code
E09000018

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
14 June 2023
Valid date
14 June 2023
Start date
18 September 2023
Planning authority decision date
5 May 2023
Appeal decision date
2 November 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
41342
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