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Official casework recordDismissedCurrent release

Appeal 3278863

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

9 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 first-floor side 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 Matter

    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.

  4. Section 05

    Main Issue

    The main issue is the effect of the development on the character and appearance of the area.

  5. Section 06

    Reasons for the Recommendation

    The site is a corner plot house in a residential area. It adjoins The Mallows, a short cul-de-sac which accommodates a number of dwellings on its eastern side, as well as further dwellings to the west behind [site address] . No 17 is a detached property with a ground-floor element on one side. This element is situated close to the fenced boundary of the site which immediately adjoins the pavement along The Mallows. The existing form of the building promotes a feeling of openness through to The Mallows from [address].

    The first-floor side extension would develop the space above the existing ground-floor element. It would have a lower ridge height than the main dwelling and extend to the full width of the existing ground-floor element. Due to the site’s proximity to the Mallows, its corner position, and the width of the extension, the development would reduce the existing sense of openness, and confine the approach to The Mallows. It would be prominent and imposing and result in harm to the character and appearance of the area.

    No [address] is also sited on a corner plot. There are similarities between the development at No 18 and the proposal. However, the distance maintained between the site and the adjoining pavement varies, and the layout of the area, including the form of the roads, is different. The appeal is considered with respect to its own individual merits.

    For these reasons, the development would cause harm to the character and appearance of the area. It would therefore fail to comply with Policy BE1 of the Local Plan: Part 1 [name] (November 2012) and Policies DMHD1 and DMHB 11 of the London Borough of Hillingdon Local Plan Part 2 Development Management Policies (January 2020) which together seek to ensure: development makes a positive contribution to the local area in terms of layout, form, and scale; extensions to corner plots maintain the openness of the area; and that all development harmonises with the local context.

  6. Section 07

    Other Matters

    Careful consideration has been given to the appellant’s family circumstances as they relate to health and ease of access to the property’s facilities. However, these are personal circumstances which are likely to be able to be addressed by an alternative scheme. As such, these circumstances have limited weight and would not outweigh the harm that would arise from the development.

    An absence of representations received during the consultation process is a neutral matter which does not weigh in support of the development. Although the site is not within a conservation area, the development must nonetheless accord with the development plan. Neither of these factors would mitigate the harm identified.

  7. Section 08

    Conclusion and Recommendation

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

  8. Section 09

    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
    21 October 2021Matches the official casework database
    Extracted site visit dates
    12 October 2021 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3278863
Application reference
12629/APP/2021/1144
Lead case reference
Not recorded
Planning authority
London Borough of Hillingdon
Planning authority code
E09000017

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
13 July 2021
Valid date
13 July 2021
Start date
31 August 2021
Planning authority decision date
12 May 2021
Appeal decision date
21 October 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
4947
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