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Official casework recordDismissedCurrent release

Appeal 3297539

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

a single and two storey rear extension.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    Procedural Matter

    On his appeal form the appellant cites the Council’s planning reference number as ‘P/4783/21 and previously P/2120/21’. In his grounds of appeal (‘GoA’), he refers to the merits of both those schemes.

    However, at the time this appeal was submitted the deadline for lodging an appeal against application [name]/2120/21 had expired. Additionally, in the introductory paragraph of his GoA he states that he is appealing against application [name]/4783/21. It is that scheme that the Council referred to in its appeal notification letters, and I have also proceeded on this basis.

  3. Section 04

    Main Issue

    The main issue is the effect of the proposal on the character and appearance of the host property.

  4. Section 05

    Reasons

    The Council’s Residential Design Guide Supplementary Planning Document 2010 (‘SPD’) sets out that extensions should harmonise with the scale and architectural style of the original building, and with the character of the area, and should not dominate the original building. At paragraph 6.64 it states that all roofs should be designed to reflect the character of the dwelling house and those adjoining, to provide a satisfactory appearance.

    Paragraph 6.72 of the SPD that I have been provided with (and which is referred to as paragraph 6.71 by the appellant and in the officer report) relates to rear dormers and two storey side extensions. It is therefore of no relevance to this scheme.

    No [site address] is the end property in a short two storey terrace. To the front it has original sloping roofs, and it retains a prominent bay window and other architectural features typical of its era. To the rear however, and in common with many nearby properties, it has been significantly altered with a ground floor extension and a large dormer covering most of the roofslope.

    As a result of this scheme, the ground floor extension would project a total of 6 metres from the host’s original rear face. The Council has raised no objection to that element of this proposal, and given that there are similar nearby extensions on this side of [address], neither do [name] any event the Council has determined under application Ref: P/1202/21/PRIOR that prior approval is not required for such a scheme.

    The proposed first floor section of the scheme would be 3 metres deep and would cover over half of the host’s rear face. Consequently, it would have a significant bulk and mass. Its visual impact in this location high up on the building’s rear face would be prominent from nearby gardens where, in the context of the host’s existing hip to gable extension and dormer, and the existing and proposed ground floor projections, very little of the property’s original form and style would remain.

    Additionally, whilst the proposed flat roof at first floor would reflect the form of the dormer and the proposed ground floor extension, at this height it would be much more prominent than them. It’s rather crude and rectilinear form would not represent good design.

    I observed no other nearby properties on this side of [address] with a first floor rear extension. For the above reasons, and notwithstanding the proposed use of matching materials, this one, when considered cumulatively alongside the other existing and proposed alterations, would subsume the original property, fail to respect its character, and give it a cluttered appearance.

    At appendices 3 to 10 of his GoA the appellant has cited examples of various roof forms in the wider area. However, I have few details of those developments, including all their respective planning history, or the planning policies and guidance in place at the time. Some do not represent good design, and some relate to properties of a markedly different appearance compared to this one.

    Looking at some of the nearby examples, the first floor rear extension at [address] appears to be significantly narrower than this one, and that property does not have a rear dormer. Compared to this scheme, the first floor rear projection at [address] is of a much more limited depth, has tapered sides, significantly less mass, and greater architectural merit.

    None of those examples alter my conclusions regarding the harm that this scheme would cause to this building.

    Amongst other things, and in general terms, Policy D3 of The London Plan 2021, Policy CS1 [name] of the [name] 2012, and Policy DM1 of the Harrow Development Management Policies 2013, require proposals to be of a high design standard, and to respect the host building. The National Planning Policy Framework also sets out the fundamental importance of good design as a key aspect of sustainable development.

    No objections to the scheme were raised by any neighbours, and I note the appellant’s dissatisfaction with the Council’s handling of his applications.

    However, having considered the proposal on its merits, for the above reasons, I find that it would not harmonise with the style of the original building. Having regard to cumulative impacts, it would harm the host’s character and appearance, and it would thus conflict with the above policies, and with the advice in the SPD.

    The appeal is therefore 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
    27 June 2022Matches the official casework database
    Extracted site visit dates
    16 June 2022 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3297539
Application reference
P/4783/21
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
Unknown
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
28 m²
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
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
24 April 2022
Valid date
24 April 2022
Start date
6 May 2022
Planning authority decision date
31 January 2022
Appeal decision date
27 June 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
16988
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