Appeal 3348221
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
single and two storey side to rear extensions; two rear dormers (demolition of detached shed, store, single storey side projection and attached garage).
Section 02
Decision
The appeal is dismissed.
Section 03
Background and Procedural Matter
Planning permission for a pair of two storey three bedroom semi-detached houses to replace the existing house on this site was previously dismissed at appeal (Ref: APP/M5450/W/22/3313135). I have had regard to that ‘dismissed appeal’ in my decision.
I have taken the description of this proposal from part E of the householder planning appeal form, which is consistent with the Council’s decision notice.
Section 04
Main Issue
The main issue is the effect of the proposal on the character and appearance of the host property and the area.
Section 05
Character and appearance
The host is prominently located on the corner of [address] and [address]. I observed that the properties around this junction, and around the opposite junction with [address], are generally set well back from the roads, thus giving the immediate locality a fairly spacious ambiance.
The proposed single storey extension would wrap around the rear and side of the host, replacing a rather tired-looking garage. That garage virtually abuts the side boundary of the plot, such that its upper section can be seen above the fence from the adjacent pavement and nearby bus stop on [address], although its limited depth tempers its visual impact.
The proposed ground floor side extension would be similar in height to the garage it would replace. However, whilst the principal parties disagree with regards to its depth measurement, it would extend well beyond the existing garage’s rear wall. As a result, viewed from the highway, the top section of its long flank wall, which would be around 3 metres high and would abut the boundary, would be prominent above the timber fence. Thus, notwithstanding the demolition of a small store, the extension would significantly reduce the prevailing sense of openness in this part of the streetscene.
Additionally, as demonstrated by [address] 1, it would have a very squat and elongated appearance which, in this prominent position, would contrast awkwardly with the original building’s style, with its sloping roofs, architectural detailing, and more articulated form.
The appellant maintains that the design of the single storey extensions in this scheme is the same as in the dismissed appeal, and that the Inspector raised no objection to that part of that proposal. However, that Inspector observed that as the main two storey bulk of the existing dwelling is set several metres in from the side boundary, it maintains the spacious character of the appeal site and its surroundings. Having regard to [name], the single storey side extension proposed in this scheme would abut a much longer stretch of [address] compared to the dismissed appeal.
The Council considers that the proposed first floor and roof level extensions would appear sympathetic to the main house and would not harmfully impact the streetscene. Having regard to their broadly subordinate scale, their set-in from the plot boundaries, and their set-down from the host’s ridge, I agree.
However, notwithstanding the proposed use of matching materials, the single storey side extension would significantly harm the character and appearance of the host property and the area. It would therefore conflict with London Plan 2021 Policy D3 Part D1), [name] 2012 Policy CS 1 [name], and Harrow Development Management Policies 2013 Policy DM 1. Amongst other things, these require a high standard of design which respects the host building; and responds positively to local character, distinctiveness and context, having regard to matters such as layout, spacing, massing, bulk, scale, form, appearance, shape, and proportions.
It would also conflict with the National Planning Policy Framework requirement for high quality design which is sympathetic to the surrounding built environment; and with the advice in the [name] Planning Document 2010 that extensions should harmonise with the scale and architectural style of the original building, and should not dominate it, or the wider streetscape.
Section 06
Other matters
The appellant is concerned about the Council’s handling of his application, including that it did not review his Planning Statement, or the dismissed appeal. However, those documents are referred to in its decision notice or delegated application report, and I have considered them here. I have very little evidence to enable me to assess the appellant’s assertion that the Council stated that an acceptable ground floor extension limit would be 129sqm, and my decision is based on this scheme’s overall planning merits.
Section 07
Conclusion
For the above reasons, the scheme would significantly harm the character and appearance of the host property and the area. Consequently, having regard to all other matters raised, including a local representation, 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 450No official casework-database value to compare
- Extracted decision date · page 1
- 22 October 2024Matches the official casework database
- Extracted site visit dates
- 7 October 2024 (page 1)
Reference and authority
Official identifiers and the planning authority recorded against this case.
- Case reference
- 3348221
- Application reference
- PL/0968/24
- Lead case reference
- Not recorded
- Planning authority
- London Borough of Harrow
- Planning authority code
- E09000015
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
- 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
- 16 July 2024
- Valid date
- 16 July 2024
- Start date
- 19 August 2024
- Planning authority decision date
- 31 May 2024
- Appeal decision date
- 22 October 2024
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
- 58808
- First seen
- 20 August 2026 at 14:24
- Last seen
- 20 August 2026 at 16:28
- Removed from release
- Not recorded
- Record created
- 20 August 2026 at 14:24
- Record updated
- 24 August 2026 at 16:21