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Official casework recordDismissedCurrent release

Appeal 3285595

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

7 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, “Single storey rear extension”.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    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) (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. The Council refused the application on this basis.

  3. Section 04

    Main Issue

    The main issue in this appeal is whether the proposed development would be permitted development under Schedule 2, Part 1, Class A of the GPDO.

  4. Section 05

    Reasons

    The appeal site comprises a semi-detached dwelling located in a residential area. An outrigger with a roof, situated to the rear of the dwelling, extends beyond part of the dwelling. Neither party has suggested that the outrigger does not form part of the original dwelling and therefore I have proceeded on the basis that the outrigger does form part of the original dwelling.

    The wall on the left-hand side of the outrigger (when the dwelling is viewed from the rear) constitutes a wall forming a side elevation of the original dwelling. The limitations found in paragraph A.1(j) of Class A are based on the original dwelling. Consequently, these limitations apply even if part of the original dwelling is removed.

    Considering this, although the wall on the left-hand side of the outrigger would be demolished at ground-floor level as part of the proposed development, as the proposed extension would extend across the ‘back room’ (as shown on the Ground Floor Plan), the proposed extension would extend beyond the line of that wall. As the proposed extension as a whole would extend for the full-width of the dwelling, it would have a width greater than half the width of the dwelling.

    Hence, 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, meaning that the proposal would conflict with paragraph A.1(j)(iii) of Class A.

    Furthermore, although the appellant has stated that a location plan was submitted and acknowledged by the Council, a site plan has not been provided within the appeal documents. Accordingly, on the basis of the evidence and the documents before me, the lack of a site plan means that the proposal also conflicts with paragraph A.4(2)(b) of Class A.

    For the reasons given above, the proposal would not comply with all of the requirements of paragraphs A.1 nor A.4. Thus, the proposed development would not be permitted development under Schedule 2, Part 1, Class A of the GPDO.

  5. Section 06

    Other Matters

    The appellant has provided a list of nearby extensions which were approved as permitted development. However, as no plans have been provided relating to those examples, a meaningful comparison with the appeal proposal cannot be made. As such, those examples do not change my findings on the main issue in this appeal.

  6. Section 07

    Conclusion

    For the reasons given above 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 368No official casework-database value to compare
    Extracted decision date · page 1
    4 May 2022Matches the official casework database
    Extracted site visit dates
    26 April 2022 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3285595
Application reference
00391/166/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
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
30 m²
Number of residences
1
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
26 October 2021
Valid date
28 October 2021
Start date
11 February 2022
Planning authority decision date
21 September 2021
Appeal decision date
4 May 2022

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
14640
First seen
20 August 2026 at 14:24
Last seen
20 August 2026 at 16:26
Removed from release
Not recorded
Record created
20 August 2026 at 14:24
Record updated
24 August 2026 at 16:21