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Official casework recordAllowedCurrent release

Appeal 3284925

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

the enlargement of existing single-storey rear extension.

  1. Section 02

    Decision

    The appeal is allowed and planning permission is granted for the enlargement of existing single-storey rear extension at [site address] in accordance with the terms of the application, Ref 8299/APP/2021/2829, dated 20 July 2021, subject to the following conditions:

    The development hereby permitted shall begin not later than 3 years from the date of this decision.

    The development hereby permitted shall be carried out in accordance with the following approved plans: Location Plan, Block Plan, 7WA-AN- 001 A01, 7WA-AN-002 A01 and 7WA-AN-003 A01.

    The materials to be used in the construction of the external surfaces of the development hereby permitted shall match those used on the exterior of the existing single-storey rear extension.

  2. Section 03

    [name]

    The main issues are the impact of the proposed development on (i) the character and appearance of the host dwelling and the area and (ii) the living conditions of the occupiers of [address].

  3. Section 04

    Character and appearance

    The appeal dwelling sits in a terrace of properties close to the corner of [address] and [address]. It has an existing flat roof single storey extension to its rear, which is adjoined to the neighbouring property at [address] and which then continues along the rear of No 11. There are other examples of flat roofs in the area, both on extensions to houses and on outbuildings. Whilst the rear of the appeal property can be seen from [address], it is viewed in the context of the existing extensions and outbuildings that are present.

    The proposal would result in a projection further than that of the extensions to the rear of the adjoining properties at Nos 9 and 11, but not significantly so in relation to what is already present at these dwellings. It would also not be positioned immediately adjacent to [address], along which a high brick wall forms the boundary and provides a degree of screening, and its general form and appearance would be in keeping with the locality. In such a context the extension that is proposed would not have a harmful visual impact upon its host dwelling, nor would it cause harm to the character and appearance of the surrounding area.

    For these reasons, I conclude that the proposal would accord with Policy BE1 of the Local Plan: Part 1 [name] (LPSP) and Policy DMHB 11 of the Local Plan: Part 2 Development Management Policies (LPDMP), where they seek to protect character and appearance. [name] note that Policy DMHD 1 of the LPDMP sets out specific parameters that rear extensions should meet, in the circumstances of this case there would be no conflict with the overall objectives of this policy that relate to character and appearance.

  4. Section 05

    Living conditions

    The adjoining dwelling at [address] has not been extended to its rear. That said, the existing rear extension to the appeal dwelling extends out at the point closest to the rear elevation of No 5 and its ground floor windows. The proposed development would not substantially increase either the height or length in comparison to what is already present. No 5 also has a rear garden of a length that means most of its external area would be unaffected by the proposal. As a result of these factors the proposed enlargement to the existing extension would not cause harm to the living conditions of the occupiers of No 5 through overdominance, overshadowing, visual intrusion, loss of light or a loss of outlook.

    In conclusion, the proposal would accord with policy DMHB 11 of the LPDMP, where it seeks to safeguard the living conditions of the occupiers of adjacent residential properties. There would again be no conflict with the overall aims of Policy DMHD 1 of the LPDMP where it refers to living conditions, in the circumstances of the case that I have outlined.

  5. Section 06

    Conditions

    Conditions are required with respect to the period to commence development and the approved plans, in the interests of providing certainty. It is necessary to impose a condition relating to external facing materials, to ensure that the proposal has an appropriate visual appearance. I have worded this in relation to the existing rear extension, mindful that it is intended to use matching bricks but also that the use of render would be acceptable in the context of the surroundings, if it was opted to also render the existing extension as well.

  6. Section 07

    Conclusion

    For the reasons given above, I conclude that the appeal should be allowed.

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 183No official casework-database value to compare
    Extracted decision date · page 1
    31 January 2022Matches the official casework database
    Extracted site visit dates
    25 January 2022 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3284925
Application reference
8299/APP/2021/2829
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
15 m²
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
Allowed
Decision category
Allowed
Received date
15 October 2021
Valid date
15 October 2021
Start date
20 October 2021
Planning authority decision date
14 September 2021
Appeal decision date
31 January 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
9705
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