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Official casework recordAllowedCurrent release

Appeal 3276134

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

first floor side extension.

  1. Section 02

    Decision

    The appeal is allowed and planning permission is granted for first floor side extension at [site address] in accordance with the terms of the application, Ref: 00435/40/P2 dated 23 March 2021, subject to the following conditions:

    The development hereby permitted shall begin not later than 3 years from the date of this decision.

    The development hereby permitted shall be carried out in accordance with the following approved plans: GLA-01L; GLA-02L; GLA-03L; GLA- 04L; GLA-05L.

    The materials to be used in the construction of the external surfaces of the development hereby permitted shall match those used in the existing building.

  2. Section 03

    Main Issue

    The main issue in this appeal is the effect of the proposal on the character and appearance of the existing property and of the local area.

  3. Section 04

    Reasons

    The appeal property is a semi-detached property on the eastern side of [address] and within a predominantly residential area, with a large area of open space opposite the houses. The property is at the southern end of the properties on [address] and benefits from a wider plot than the adjoining properties. The side adjoins the rear boundaries to gardens of houses in [address]. The existing houses generally follow a regular pattern with slightly projecting front bays.

    The appeal dwelling has been previously extended, including with a single storey side extension which projects forward of the main elevation under a part pitched roof. The proposal would extend above the existing extension following the front building line of the main house and extending the gable end at existing roof level.

    I have taken into account the detailed guidance set out in the Council’s Residential Extension Guidelines Supplementary Planning Guidance 2003 (SPG) in relation to the desired set back from the main front wall of the house and the guidelines in respect of width and step down at roof ridge level. Whilst the extension would accord with the SPG in terms of its proposed width in relation to the main house, it would not accord with other of the guidelines.

    However, given the siting of the house at the southern end of the properties in [address], there would be no concern about the creation of a terracing effect. The semi-detached pair is not symmetrical as existing, particularly given the existing side extension at the appeal property but the proposed extension at first floor would be inset from the projecting front bay.

    Given the existing changes and extensions at the appeal property, I consider that the proposal would create a well-designed and clearly legible extension, that would not be overly complicated in its form; this would respect the character and appearance of the existing property. As a result and taking into account the pattern of development in the local vicinity, I am also satisfied that the extension as proposed would not result in harm to the character and appearance of the local residential area.

    I therefore conclude that the proposed extension would respect the character and appearance of the existing property and local area. There would be no conflict with Policies SC7, CC1 and CC2 of the Council’s Local Plan which seek, amongst other things for good quality design which respects the local context. I have noted that the proposal would not comply with all of the detailed guidance in the [name], I have found that the proposal would be acceptable in terms of respecting the character and appearance of the existing property and local area. In the particular circumstances of this case, I consider that there would be justification for an exception to be made to this part of the SPG.

  4. Section 05

    [name]

    I agree with the Council that given the proposed siting of the extension and the relationship with surrounding properties, particularly those in [address], there would be no material harm to the living conditions of neighbours, including in respect of overlooking and loss of privacy as well as loss of daylight and sunlight.

  5. Section 06

    Conditions and Conclusion

    In terms of conditions, I agree with the Council that the materials should match those used on the existing building in order to protect the character and appearance of the existing building and local area. A condition should be imposed to list the approved plans for the avoidance of doubt and in the interests of proper planning.

    For the reasons given above and having regard to all other matters raised, including in representations, I conclude that the appeal should be allowed.

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
    24 September 2021Matches the official casework database
    Extracted site visit dates
    31 August 2021 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3276134
Application reference
00435/40/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
20 m²
Number of residences
0
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
Allowed
Decision category
Allowed
Received date
30 May 2021
Valid date
30 May 2021
Start date
18 August 2021
Planning authority decision date
10 May 2021
Appeal decision date
24 September 2021

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
No
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
3726
First seen
20 August 2026 at 14:24
Last seen
20 August 2026 at 16:25
Removed from release
Not recorded
Record created
20 August 2026 at 14:24
Record updated
24 August 2026 at 16:21