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Official casework recordDismissedCurrent release

Appeal 3286430

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

the installation of 1.1m high galvanized steel railings around the roof perimeter of the rear extension. Additionally windows on the floor that access the terrace will be converted to Bi-folding doors.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    [name]

    The main issues are the effect of the development on the character and appearance of the area, and the living conditions of the occupiers of the neighbouring properties.

  3. Section 04

    Reasons

    The property is part of a large 1970s three storey building and benefits from a single storey flat roofed extension to the rear. The proposal is to use the roof of the extension as amenity space and metal railings have been added to the edge of the roof, therefore this element is retrospective. However, currently there is no access from the property to the terrace as the existing windows remain in situ. Beyond the property is a grassed area which extends to the river and includes a public footpath. The riverside area, including [address], forms part of the Wandle Valley Conservation Area which follows the river.

    [address] turns its back on the river and many of the properties have extensions and outbuildings to the rear, although these are mostly screened by boundary fencing. The existing extension to No.37 projects above the boundary fence, and due to its elevated position the railings are highly conspicuous.

    I acknowledge that railings are a feature of the building, however these are part of the original design. They are formed of two horizontal bars and are located to the front, above the projecting garages, and to the inset balconies at the corners of the building. In contrast, to the rear the elevation has a simple appearance and the introduction of the vertical railings, which extend some distance from the building, form an incongruous feature and are visually prominent.

    The appellant explains that the terrace is to provide a safe outdoor space for their children. Nonetheless, the single storey extension has replaced most of the garden and the Council advise that a condition was imposed on that consent preventing the use of the roof space. The depth of the terrace would allow users to look back towards the building with direct views into the neighbours first floor windows, as well as over their gardens. Whilst there is an existing level of mutual overlooking, in my view, the proposal would result in an undue loss of privacy to the occupiers of the neighbouring properties. Additionally, given its size and position, the use of the terrace is likely to result in increased noise and disturbance, and associated paraphernalia would add to the visual clutter, detracting from the riverside setting.

    Overall, I find that the railings have an adverse visual effect on the building and its surroundings, failing to preserve the character and appearance of the Conservation Area. The terrace would also be harmful to the living conditions of the occupiers of the neighbouring properties and a lack of neighbour objections does not lead me to a different view. Having regard to the National Planning Policy Guidance the impact on the Conservation Area would be less than significant, but there are no identified public benefits which outweigh the harm I have found.

    The proposal therefore conflicts with London Plan 2021 policies D3 and D4, Merton's Local Plan Sites and Policies Plan (2014) policies DM D2, DM D3 and DM D4, and Merton LDF Core Planning Strategy (2011) policy CS 14. Collectively, and amongst other things, these policies seek that development responds to the surrounding area, conserve heritage assets, respects the design of the original building and protect from visual intrusion and noise.

  4. Section 05

    Conclusion

    For the reason set out I dismiss the appeal.

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 362No official casework-database value to compare
    Extracted decision date · page 1
    28 April 2022Matches the official casework database
    Extracted site visit dates
    1 April 2022 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3286430
Application reference
21/P3021
Lead case reference
Not recorded
Planning authority
London Borough of Merton
Planning authority code
E09000024

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
1
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
Yes
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
8 November 2021
Valid date
8 November 2021
Start date
3 December 2021
Planning authority decision date
14 October 2021
Appeal decision date
28 April 2022

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
14413
First seen
20 August 2026 at 14:24
Last seen
20 August 2026 at 16:26
Removed from release
Not recorded
Record created
20 August 2026 at 14:24
Record updated
24 August 2026 at 16:21