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Official casework recordDismissedCurrent release

Appeal 3333882

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

for part double storey side extensions and a part single storey rear extension.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    [name]

    A revised version of the National Planning Policy Framework (the ‘Framework’) was published in December 2023, but there are no material changes relevant to the substance of the appeal.

  3. Section 04

    Main Issue

    The main issue is the effect of the appeal proposal upon the character and appearance of the area.

  4. Section 05

    Reasons

    The appeal site comprises two adjacent semi-detached houses within a busy mixed residential and commercial area where there is a range of architectural designs and forms. Nos 391 and 393 whilst not semi-detached to each other are linked by virtue of their garages at ground floor level, the flat roofs of which are concealed behind a parapet wall. Consequently, there is a gap at first floor level providing a view through to St. [address] behind from the opposite side of [address].

    [name] noticed on my site visit that architecture is varied, on the whole buildings tend to be separated at least at first floor level within the immediate locality and this provides the prevailing pattern of development of the area.

    In isolation, I consider that the extensions would appear subordinate by virtue of the set down of their ridgelines and set back of their front elevations at first floor level, particularly bearing in mind that the ground floor front elevations as proposed, would be in a very similar alignment to those of the aforementioned garages. However, the extensions to no’s 391 and 393 cannot be viewed in isolation and whilst the main roof forms would be hipped, nonetheless the existing spaciousness provided between the two would be significantly eroded.

    I note that the proposal is to extend the dwellings to provide accommodation for the larger extended family living as one household in both properties, although with respect, that would ultimately give rise to the form following its function. I did note that there are single detached properties that have been constructed in recent times due northeast of the appeal site, however whilst slight there remains a small degree of separation between them and the adjacent properties. I also acknowledge that the properties are not in a Conservation Area and are not locally listed, however, compliance with the Council’s Design Guidelines is only one material consideration in the overall

  5. Section 06

    planning balance.

    [name] am aware that this form of proposal can be seen elsewhere within the Borough, each case must be assessed on its own merits. I do however have little concern with regard to the single storey rear extension to no 393 due its position out of public view. Nonetheless the two storey side extensions would result in an incongruous form of development that would be detrimental to the character and appearance of the [address] street scene with the current visual gap at first floor level effectively proposed to be infilled.

    In coming to this conclusion I have had regard to the Public Sector Equality Duty (PSED) set out under S.149 of the Equality Act 2010, but the risks caused by the proposed extensions upon the character and appearance of the area outweigh its benefits in terms of eliminating discrimination against persons with the protected characteristics of age, race, religion or belief, advancing equality of opportunity for those persons and fostering good relations between them and others. I conclude that it is proportionate and necessary to dismiss the appeal with the scheme causing demonstrable harm to the character and appearance of the area and contrary to Policies CC1 and CC2 of the London Borough of Hounslow Local Plan 2015 – 2030 which seek to retain, promote and support high quality urban design and architecture to create attractive, distinctive and liveable places and seeking to raise design standards and to ensure that all new development conserves and takes opportunities to enhance their special qualities by, amongst other things, improving and promoting the appreciation of the character and qualities of the distinctive areas of the Borough, by securing development that sensitively and creatively responds to an area’s character and by refusing poor quality design.

  6. Section 07

    Conclusion

    Having regard to the above and all other matters raised by the appellant, I conclude that the appeal 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 297No official casework-database value to compare
    Extracted decision date · page 1
    9 April 2024Matches the official casework database
    Extracted site visit dates
    11 March 2024 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3333882
Application reference
00553/391-393/P2
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
1. Refused planning permission
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
27 November 2023
Valid date
27 November 2023
Start date
2 February 2024
Planning authority decision date
5 October 2023
Appeal decision date
9 April 2024

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
49229
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