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Official casework recordDismissedCurrent release

Appeal 3289255

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

a ground floor rear extension of 6.0m.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    Background and Main Issue

    Schedule 2, Part 1, Class A, [name].4(7) of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) (the GPDO) states that ‘where any owner or occupier of any adjoining premises objects to the proposed development, the prior approval of the local planning authority is required as to the impact of the proposed development on the amenity of any adjoining premises’.

    Therefore, the main issue is the effect of the proposed development on the amenity of any adjoining premises, with particular regard to the living conditions of neighbouring occupiers in terms of natural light and outlook.

  3. Section 04

    Reasons

    The appeal building is a 2-storey, semi-detached house on the western side of [address]. The appeal building is accessed via a gated passageway to the side, with a timber panelled fence, some 1.6 metres high, marking the boundary with No 29 next door along this passageway and extending a short distance into the rear garden. No 29 has a similar access passageway on its side of the boundary fence.

    I do not recognise the description of the side boundaries of the appeal site in the appellant’s Statement of Case. There is no 1.8m high solid timber fence along both rear side boundaries, rather an open chain-link fence some 1.0 metres high along most of their lengths, supplemented with planting.

    Whilst not shown on the existing drawings, there is a single-storey, flat-roofed, pergola-type construction that is the width of the original building and projects some 3.0 metres from its rear elevation. The pergola is open on two of its sides but has solid panelling adjacent to the contiguous next door dwelling, No 33, roughly due north.

    The proposed development would entail the construction of a single-storey flat-roofed extension to the rear, the same width as the original dwelling. It would extend a distance of some 6.0 metres from the rear elevation.

    [address] is aligned on a generally north-south axis. Consequently, the proposed development would not affect the occupiers of No 29, to the south, in terms of reduced natural light. The proposed extension would be visible from the rear of No 29 through and above the boundary planting. However, the two side access passageways provide sufficient separation, so that the size, massing and position of the proposed extension would not cause a significant loss of outlook for the occupiers of No 29.

    The side panelling on the existing pergola currently limits natural light and outlook at the rear of No 33. I also note that there is considerable planting within the rear garden of No 33 that would also reduce the natural light that the property receives and the outlook of the occupiers.

    However, the proposed extension would be significantly longer than the existing pergola and without leaves on the vegetation the screening provided would be considerably less for a large part of the year. Figures 2 and 3 in the [name] of Case show yellow leaves and bare branches that suggests this vegetation is deciduous. In these circumstances, the size, massing and position of the proposed development would be likely to significantly reduce natural light and outlook to the rear of No 33 in late autumn, winter and early spring.

    Furthermore, the boundary vegetation at No 33 could be pruned by the occupiers there, if they were concerned with the level of natural light they received, or their outlook, whereas the proposed rear extension at the next door property would be beyond their control.

    I note the appellant’s comments stating that the subordinate design of the proposal would mitigate potential overshadowing, loss of light or outlook. However, there is no substantive evidence to show that this would be the case with regard to the occupiers of No 33.

    Similarly, no substantive evidence has been provided to demonstrate that habitable windows at No 33 would not be affected by the proposed extension or that the extension would pass the 45 degree test, as is asserted by the appellant. Given the size, massing and position of the proposed extension relative to No 33, this does not seem likely.

    The appellant has suggested that the principle of the development is a material consideration and should be given significant weight in my decision. The appellant references the ‘spirit’ of the National Planning Policy Framework (the Framework), including paragraphs in the 2019 version regarding the effective use of land and the need for homes. The appellant considers that the proposed development would be consistent with the Framework in these regards.

    Reference should be made to the Framework only as far as it is relevant to the proposed development and prior approval matters and so the ‘spirit’ of the Framework does not concern me. In any event, the 2021 version of the Framework supersedes the 2019 version and I do not consider that the proposal would be supported by the 2021 Framework, including with reference to Chapter 11 - Making effective use of land; and Chapter 12 - Achieving well-designed places.

    For the reasons set out above, the proposal would have an unacceptable effect on the living conditions of the occupiers of No 33 with regard to natural light and outlook. The proposed development would, in so far as it relates to the matters contained under relevant parts of Schedule 2, Part 1, Class A of the GPDO, conflict with [name] D2 (design considerations in all developments) and DM D3 (alterations and extensions to existing buildings) contained in the [name] and Policies Plan 2014; and, with Policy CS14 (design) contained in the [name] 2011.

  4. Section 05

    Other Matters

    The appellant claims that both next door neighbours now support the proposal. However, no evidence has been provided to support this statement. The appellant also makes reference to the sympathetic design of the proposed extension and to the privacy of neighbouring properties. However, with regard to the Council’s Decision Notice, these are not matters of dispute between the parties.

    In any event, none of these matters affect my assessment of the effects of the proposed development on the amenity of adjoining premises or cause me to reach a different conclusion with regard to the harm they would cause, as set out above.

  5. Section 06

    Conclusion

    For the reasons given above, I conclude that 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 1950No official casework-database value to compare
    Extracted decision date · page 1
    9 August 2022Matches the official casework database
    Extracted site visit dates
    1 August 2022 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3289255
Application reference
21/P3200
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
3. Refused prior approval of permitted development rights
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
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
17 December 2021
Valid date
17 December 2021
Start date
21 January 2022
Planning authority decision date
11 October 2021
Appeal decision date
9 August 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
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
18975
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