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Official casework recordDismissedCurrent release

Appeal 3344781

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

5 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

3.5 single-storey side extension, 2.5 m first floor rear extension & single storey side extension.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    Preliminary Matters and Main Issue

    The proposed extensions comprise a single storey rear extension, a first floor rear extension and single storey side extension. The Council has confirmed that it is satisfied with the scale and proportions of the proposed extensions in terms of the effect on the character and appearance of the existing property and on the local area. The reason for refusal is specifically related to the design of the first floor rear extension which is considered to be an unsympathetic addition to the host property and not in keeping with the character of the area.

    From my site visit and all the information before me I have no reason to take a different view. Accordingly, the main issue in this appeal is the effect of the design of the first floor rear extension on the character and appearance of the existing property and on the local area.

  3. Section 04

    Reasons

    The appeal property is a semi-detached property at the eastern end of [address], which comprises semi-detached and short terraces of similar properties along the northern side and eastern side of the road. There is a pedestrian footpath leading along the southern edge of the property through to a commercial estate to the rear, with vehicular access off [address]. As a result of this pedestrian access the rear elevation of the appeal property is seen in public views.

    The proposed first floor rear extension in terms of its scale, depth and width would respect the proportions and scale of the existing property. In terms of its design, it would have a solid wall facing towards the neighbouring property but almost full length continuous glazing to the side and rear elevations under a hipped roof. The predominant pattern of development for the traditional houses in the street are of solid walls punctuated by windows. I consider that the extent of glazing along the rear and side facing elevations would be excessive and would not respect the more traditional design form of the existing property and the surrounding houses. It would therefore harm the character and appearance of the existing dwelling.

    Given the pedestrian footpath which goes around the edge of the property, the first floor extension would be very visible to pedestrians using the footpath. The proposed design with such extensive glazing would be visually discordant in these street scene views.

    I therefore conclude that the proposed first floor extension, with particular reference to its proposed design and extent of glazing would harm the character and appearance of the existing dwelling and of the local area. This would conflict with Policies CC1, CC2 and SC7 of the adopted Local Plan and the Council’s Residential Extension Guidelines as well as the National Planning Policy Framework, and in particular Section 12, all of which, amongst other matters, seek a high quality of design which respects the local context.

    I have taken into account the appellant’s objectives to maximise the light to the rear room. However, I am not satisfied that the proposal before me would be the only design solution to achieve this objective. Given the harm I have concluded I am not persuaded to a different conclusion.

  4. Section 05

    Conclusion

    The proposal would not accord with the development plan and there are no other material considerations to override this finding. For the reasons given above and having regard to all other matters raised, including in representations, I conclude that this 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 257No official casework-database value to compare
    Extracted decision date · page 1
    9 August 2024Matches the official casework database
    Extracted site visit dates
    16 July 2024 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3344781
Application reference
P/2024/0258
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
21 May 2024
Valid date
24 May 2024
Start date
17 June 2024
Planning authority decision date
26 March 2024
Appeal decision date
9 August 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
55417
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