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Official casework recordDismissedCurrent release

Appeal 6007928

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

the construction of a single-storey rear extension, a double-storey side extension and alterations to the existing roof structure with the addition of a new dormer.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    [name]

    I have taken the description of the proposed development from the planning application form but have limited it to solely reflect the act of development.

  3. Section 04

    [name]

    The main issues raised by this appeal are the effect of the proposed development on: - a) The living conditions of the neighbouring occupiers at No. [address]; and b) The character and appearance of the host property and the street scene.

  4. Section 05

    Living conditions

    [address] Extensions and External Alterations Supplementary Planning Document (SPD) notes that generally an extension of 4m in depth for a detached property will be acceptable. It also advises that where a proposed extension seeks a larger depth, the eaves should be reduced to 2.2m at the shared boundary. However, this latter requirement appears to relate to infill extension to Victorian properties, which the proposal does not.

    The rear extension would extend approximately 5m in distance from the rear of the host dwelling and would be of a greater depth than that advocated by the SPD for a detached property. It would be of a height that would be clearly visible above the common boundary and be within close proximity to the side boundary of the site. No.32A has two conservatory style structures at the rear, one in close proximity to the common boundary with the appeal site that has outlook toward the proposed development. Although the nearest conservatory is the smaller of the two, it is a habitable living space relating to that property.

    The occupiers of neighbouring properties should reasonably expect to enjoy an acceptable outlook as part of their residential lives. The rear extension would be clearly visible in outlook in close proximity from the conservatory at No.32A. The proposal would appear dominant in outlook and the overbearing impact of the extension in such close proximity to the adjoining property would create a sense of enclosure. This would diminish the enjoyment of the residential living environment for the neighbouring occupiers that they should reasonably expect to enjoy. This would be so despite the habitable living space not being a large space in itself and it also having outlook towards its rear garden.

    For these reasons, I conclude that the proposed development would be harmful to the living conditions of the neighbouring occupiers at No. [address]. The proposal would, therefore, conflict with Policy 46 of the London Borough of [site address] Local Plan and the SPD. That policy seeks, amongst other matters, development to protect the amenity and living conditions for occupiers of new, existing, adjoining and neighbouring properties. The SPD resists extensions that would create an unacceptable sense of enclosure or appear overbearing when seen from neighbouring gardens or rooms, as a result of height, footprint or proximity. I have found that the proposal would be harmful for the above reasons and this brings the proposed development into conflict with the SPD.

  5. Section 06

    Character and appearance

    I saw that [address] comprises a variety of styles of dwellings of differing sizes, designs and materials. Indeed, the photographs provided by the appellant illustrate this. There are other large properties in the area, whether by original design or as a result of enlargements or replacement.

    The proposal would significantly alter the appearance of the property and increase its overall size. The existing dwelling is modest in size when compared to some of the other properties in the locality. In terms of the resulting size of the proposal, it would not appear at odds with that of other properties in the area. Its height and width would reflect that of neighbouring dwellings and others within the wider street scene. Whilst the pair of gable front bays may be narrower than that of other properties in the area, there are examples of this style of frontage façade in the environs that include pitched roofs to the bays. Centralised entrances are prevalent and form part of the existing street scene, as do small front roof dormers to which the proposal would be of similar size.

    With regard to the crown roof design, the flat roof element would not be readily visible in views from the street scene. It is accepted that the width of the side extension would be modestly wider than that advocated by the Council’s adopted SPD. Nonetheless, this, along with the lack of setback of the side extension, would create a design that would visually reflect the character and appearance of other properties within the area. As such, the proposal would not be out of keeping such that would, in this case, justify full compliance with the SPD. Notwithstanding the living conditions considerations above, whilst not compliant with the measurements advocated by the SPD, the single storey rear extension would be of a size that would not visually overwhelm the appearance of the rear of the dwelling and, being single storey, would be subservient to it.

    Taking all elements of the proposal together, I find that the proposal would represent a well-balanced design and that its increase in size, along with its design and form, would assimilate with the street scene.

    The local planning authority’s officer report makes reference to an Inspector’s decision and highlights that consideration was given in that appeal to the amount of development that would take place was akin to a new dwelling rather than one that was an enlargement of a dwelling. I accept that the proposal would significantly alter the appearance of the property and increase its overall size. Nonetheless, a significant amount of the existing dwelling would remain, therefore I do not consider the proposal would be akin to a development for a new dwelling in this case.

    For these reasons, I conclude that the proposed development would not harm the character and appearance of the host property or the street scene. As such, the proposed development would comply with Policy 28 of the London Borough of [site address] Local Plan and the provisions of the National Planning Policy Framework. That policy seeks, amongst other matters, development to be of high architectural and urban design quality and relate to the context of the character and appearance of the local area. Although not fully according with the [name] have found, for the above reasons, the proposal to be acceptable in this particular case.

  6. Section 07

    Conclusion

    [name] have found in favour of the appellant in terms of the second main issue, this does not overcome the identified harm in relation to the first main issue.

    Having regard to the above findings, 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 309No official casework-database value to compare
    Extracted decision date · page 1
    8 June 2026Matches the official casework database
    Extracted site visit dates
    27 May 2026 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
6007928
Application reference
PA25/4470
Lead case reference
Not recorded
Planning authority
Richmond Upon Thames London Borough Council
Planning authority code
E09000027

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
Not recorded
Appeal reason
refused
Type detail
Householder
Jurisdiction
No Jurisdiction Associated
Link status
Not recorded

Site and development

Published appeal-site measurements and planning designations, without the withheld precise location fields.

Site area
0 hectares
Floor space
954 m²
Number of residences
Not recorded
Site in Green Belt
No
Agricultural holding
Not recorded
Affects setting of a listed building
Yes
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
10 April 2026
Valid date
10 April 2026
Start date
15 April 2026
Planning authority decision date
5 March 2026
Appeal decision date
8 June 2026

Case administration

Published recovery, call-in, costs and enforcement information for this case.

Redetermined
Not recorded
Bespoke
Not recorded
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
Back Office
Dataset status
Current release
Catalogue record ID
90048
First seen
20 August 2026 at 14:25
Last seen
20 August 2026 at 16:29
Removed from release
Not recorded
Record created
20 August 2026 at 14:25
Record updated
24 August 2026 at 16:21