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Official casework recordDismissedCurrent release

Appeal 3319109

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 part single, part two storey side extension, 2no. rear dormers, new dropped kerb and vehicular entrance gates. (Part retrospective).

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    Appeal Procedure

    The site visit was undertaken by a representative of the Inspector whose recommendation is set out below and to which the Inspector has had regard before deciding the appeal.

  3. Section 04

    Procedural Matter

    In the interest of accuracy, the description of development in the header above is based on the decision notice and appeal form.

    This appeal is part-retrospective as most of the main structural and exterior works have been carried out. This case follows an enforcement investigation by the Council as the development had not been constructed entirely in accordance with application ref. 21/03441/FULL approved in July 2022.

  4. Section 05

    Main Issue

    The main issue is the effect of the proposal on the character and appearance of the host dwelling and the surrounding area.

  5. Section 06

    Reasons for the Recommendation

    The appeal property is a detached dwelling located on the southern side of [address] within an established residential area characterised by a mix of detached and semi-detached properties. The appeal dwelling features prominently in the street scene given its position set forward of the building line on [address].

    The appellant argues that the form of the first-floor side extension closely relates to what was approved as part of application ref. 21/03441/FULL. Whilst they opine that the overall scale and mass of the side extension is reasonable and comparable to the extension previously deemed acceptable by the Council, I find that it appears unduly bulky because of its excessive width. [name] accept that there are other examples within the area of similar style of roof, the overall scale of the crown roof in this instance is disproportionate and visually prominent in the streetscene when seen from [address] to the west of the appeal site. The overall appearance of the extension appears to have been poorly finished which exacerbates the adverse visual impact of the scheme.

    The appellant states that the rear extension as built provides a more coherent elevation and is not visible in the street scene. However, it is clearly visible from [address] as well as from the rear gardens of neighbouring properties. The scale of the rear extension and crown roof appears excessive and jars with the pitched roof. Although the crown roof is lower than the ridge of the pitched roof, its width and depth is significant and does not appear sufficiently subordinate to the main dwelling.

    The excessive scale of the extensions and visibly inadequate finishings have resulted in an awkward and disjointed appearance to the development. The extensions constitute discordant and incongruous additions to the appeal dwelling, which detract from the character and appearance of the main dwelling and the surrounding area.

    The proposed retention of the development would therefore adversely impact the character and appearance of the host dwelling and surrounding area. It would conflict with Policy QP3 of the Council’s Borough Local Plan 2013-2033, the National Planning Policy Framework (NPPF) and the Borough Wide Design Guide Supplementary Planning Document (SPD) which together seek to ensure proposals are well designed and contribute positively to the character and appearance of the surrounding area in which they lie.

  6. Section 07

    Other matters

    I recognise the importance that the enlargement of the property plays in providing practical and additional living space for the current occupiers. Nevertheless, I am satisfied that improvements to the accommodation and layout sufficient to meet the needs of the occupants could be achieved with an alternative and more sympathetic design that would not harm the character and appearance of the host dwelling and surrounding area.

    Whilst the construction of the development may have provided employment for local builders and traders, I attach no more than limited weight to this positive consideration given that an acceptable scheme would also have provided a similar level of opportunity, and this does not therefore outweigh the harm I have identified. Similarly, I appreciate the use of sustainable materials and modern insulation is good practice however, as above, this consideration does not outweigh the adverse impact of the proposal.

  7. Section 08

    Recommendation

    The proposal would adversely impact the character and appearance of the host dwelling and surrounding area. Given this, the proposal would conflict with the development plan as a whole and there are no other considerations, including the provisions of the NPPF, which outweigh this finding.

    For the reasons given above and having had regard to all other matters raised, I recommend that the appeal should be dismissed.

  8. Section 09

    Inspector’s Decision

    I have considered all the submitted evidence and my representative’s recommendation 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 376No official casework-database value to compare
    Extracted decision date · page 1
    17 August 2023Matches the official casework database
    Extracted site visit dates
    10 July 2023 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3319109
Application reference
23/00066
Lead case reference
Not recorded
Planning authority
Royal Borough of Windsor and Maidenhead
Planning authority code
E06000040

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
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
23 March 2023
Valid date
23 March 2023
Start date
19 June 2023
Planning authority decision date
8 March 2023
Appeal decision date
17 August 2023

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
37326
First seen
20 August 2026 at 14:24
Last seen
20 August 2026 at 16:27
Removed from release
Not recorded
Record created
20 August 2026 at 14:24
Record updated
24 August 2026 at 16:21