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Official casework recordDismissedCurrent release

Appeal 3277318

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

11 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 erection of a mansard roof extension.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    Appeal Procedure

    The site visit was undertaken by an Appeal Planning Officer whose recommendation is set out below and to which the Inspector has had regard before deciding the appeal.

  3. Section 04

    Procedural Matters

    The Government published a revised version of the National Planning Policy Framework (the Framework) on 20 July 2021. Regard has been had to the revised national policy as a material consideration in the decision-making process. However, in this instance, the issues most relevant to the appeal remain unaffected by the revisions to the Framework. There is therefore no requirement to seek further submissions on the revised Framework.

    A number of revised plans were been provided as part of the application process. The appellant has made it clear that aside from the original plans (drawing nos. 102 [name], 103 [name], 104 [name], 105 [name]) ([name]) and the plans which propose a roof extension set in from the northern side only (drawing nos. 106, 107, 108, 109) ([name]), the other revised plans would be unviable. The appeal will therefore have regard to both [name] and [name] only.

  4. Section 05

    Main Issue

    The main issue is whether the proposal would preserve or enhance the character or appearance of the [address] Conservation Area.

  5. Section 06

    Reasons for the Recommendation

    The site is within the [address] Conservation Area (CA). Section 72(1) of the Planning (Listed Building and Conservation Areas) Act 1990 requires that special attention is paid to the desirability of preserving or enhancing the character or appearance of conservation areas. Paragraph 199 of the Framework states that great weight should be given to the conservation of designated heritage assets. Irrespective of the degree to which the development would be seen from outside the site, harm to the character and appearance of the building would still inherently result in a failure to preserve or enhance the character or appearance of the CA.

    [address] Conservation Area Appraisal & [name] notes a mixture of building types, architectural styles, and ages in the CA. The site is a mid-terrace house located towards the corner whereby Wimbledon Park Road meets [address]. The property and the terrace as a whole is well maintained and represents a distinct character which contributes positively to the CA. The main body of the property has a pitched roof. There are currently no roof extensions on the main roof of the property, or those either side of it.

  6. Section 07

    [name]

    Due to its size, and flat roof, the roof extension would dominate the rear roof slope of [site address] and alter its form and appearance. It would be unsympathetic to the existing character of the building and the wider terrace, and disrupt the terrace’s rear roofscape. It would appear incongruous between the properties adjacent to it, for which the roofs are currently unaltered, and cause harm to the character and appearance of the host dwelling and the terrace as a whole.

    Although there are trees to the rear of the property, the roof extension would still be partially visible from the public realm, and the trees could not in any case be relied upon to provide screening in perpetuity. The appeal is considered with respect to its own individual merits. The roof extensions at other properties in the vicinity of the site are different to the one proposed and possess different contextual circumstances. They do not justify or mitigate the harm that would arise from the roof extension proposed.

    The Wandsworth Local Plan Supplementary Planning Document Housing (SPD) states that extensions should respect the form and proportions of the original house, aim to be sympathetic to the style and character of the house, and complement the surrounding buildings. For the reasons above, the roof extension would not adhere to the guidance provided in the SPD.

    The amendments made to the size, design, and placement of the roof extension would result in a minor mitigation of the harm identified in [name]. The amendments would not be sufficient to alleviate the harm, and the roof extension in [name] would therefore also fail to preserve or enhance the character or appearance of the CA.

  7. Section 08

    Conclusion

    [name] and [name] would be seen from a very small proportion of the CA and the extent of the harm to the heritage asset would therefore be less than substantial. However, no substantive public benefits have been put forward to weigh against this harm.

    For these reasons, the roof extensions in [name] and [name] would fail to preserve or enhance the character or appearance of the CA. They would fail to comply with Policy D6 of the London Plan (March 2021), Policy IS 3 of the Wandsworth Local Plan Core Strategy (March 2016), and [name] 1, DMS 2, and DMH 5 of the Wandsworth Local Plan Development Management [name] (March 2016) which together seek to ensure development is of a high quality and well designed, that heritage assets are conserved, and that the existing character of the borough is protected. They would also fail to align with the Framework and its aim to conserve heritage assets.

  8. Section 09

    Other Matters

    The Council have found no issue with the proposed rooflights. These would be minor alterations and there is therefore no reason to disagree with the Council on this matter. This would not mitigate the harm identified.

    Although other schemes which could potentially avoid harm to the character or appearance of the CA are not considered viable options, this does not justify or mitigate the harm that would arise from [name] or [name].

    Providing additional space for the appellant’s growing family is a personal circumstance and it seems some additional accommodation could be achieved by other means. It therefore holds very little weight which would not outweigh the harm identified.

  9. Section 10

    Conclusion and Recommendation

    Based on the above, and having regard to all matters raised, I recommend that the appeal should be dismissed.

  10. Section 11

    Inspector’s Decision

    I have considered all the submitted evidence and the Appeal Planning Officer’s report and on that basis the appeal is 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 859No official casework-database value to compare
    Extracted decision date · page 1
    30 November 2021Matches the official casework database
    Extracted site visit dates
    26 October 2021 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3277318
Application reference
2021/0313
Lead case reference
Not recorded
Planning authority
London Borough of Wandsworth
Planning authority code
E09000032

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
Dismissed
Decision category
Dismissed
Received date
18 June 2021
Valid date
18 June 2021
Start date
7 September 2021
Planning authority decision date
1 June 2021
Appeal decision date
30 November 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
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
6810
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