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Official casework recordDismissedCurrent release

Appeal 3305489

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

6 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

described as “Proposed two-storey rear and side extension, alterations to fenestration, loft conversion, rear rooflights and proposed new roof”.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    [name]

    The main issues are the effect of the proposed development on: • the character and appearance of the area including the Moor Park Conservation Area (CA); and • the living conditions of the occupiers of Nos 79 and [address] with particular regard to privacy.

  3. Section 04

    Character and appearance

    The appeal site comprises an attractive two storey detached house situated in the predominantly residential area of [address]. The dwellings along [address] are varied in type, style and design but are typically large, two storey detached properties with generous plots. The road level rises from north to south so the neighbouring house at No 83 is at a higher level and No 79 is at a lower level than the appeal property. The dwelling has brick walls and a tiled, hipped roof with chimneys. There is an existing single storey garage attached on the north side of the house.

    Having regard to the Moor Park Conservation Area Appraisal (CAA), the significance of the CA derives in part from being a comprehensively planned low density estate of large, detached two storey houses situated on individual plots built from the 1920s/1930s – 1950s. The CAA indicates that existing trees make a special contribution to the character of the area. The CAA also highlights that there are buildings within the CA which contribute more to its significance due to their relatively unaltered appearance. The appeal property makes a positive contribution to the CA as it has retained the majority of its original form and simplistic design features including existing two storey front and rear projections.

    The side extension would align with the front elevation of the existing property, resulting in the loss of symmetry and the simple, elegant proportions of the existing house. Further, the inclusion of an additional front projection would detract from the existing one as the prominent feature facing the street, exacerbated by the loss of the attractive entrance doorway and canopy. In addition, the roof would become the dominant feature in views from [address] by reason of its size and increased height, and it would also result in the loss of the existing side chimney and would interrupt the stepped roofline of the houses along this part of the road.

    The long high flank walls would not reflect the scale of the existing dwelling, and the pitched roof rear gables and recessed dormer with second floor balcony would be incompatible with the hipped roof form of the existing house. The north flank wall and roof would be visible from [address] due to the higher level of the appeal site compared to No 79 and the roof form of the neighbouring house. The loss of the side chimney feature and the absence of any windows in the side elevation of the new front projection would further emphasise the scale of development on the north elevation.

    Overall, the height, width and depth of the proposed extensions and new roof would subsume the host property and substantially alter its form, resulting in bulky and incongruous additions. The proposed development to the front and north side of the dwelling would be particularly conspicuous in views from [address].

    I have been referred to other examples of extensions granted permission in [address]. These involved a mix of single and two storey extensions and dormers but do not appear to be of an equivalent scale or affecting the form and appearance of the host dwellings to the same extent as the current proposal. Therefore, I do not find them comparable to the proposed development.

    There is a silver birch in the rear garden of the appeal site which appears to be in poor health, adding little value to the character of the CA. However, there is also a tree close to the mutual boundary in the neighbouring garden at No 83 which appears to be semi-mature and healthy and is an asset to the CA. In the absence of sufficient information outlining the effect of the proposals on trees, I am unable to rule out harm to the CA from potential impact on the tree at No

    The appellant has suggested a pre-commencement condition requiring an arboricultural report, but I consider that such fundamental information needs to be provided prior to determining the application so that the potential effects of the development can be fully assessed.

    For the reasons set out and having regard to the duty under Section 72(1) of the Planning (Listed Buildings and Conservation Areas) Act 1990, the proposal would neither preserve nor enhance the character or appearance of the CA, although the harm would be less than substantial. Paragraph 202 of the Framework states that less than substantial harm to the significance of a designated heritage asset should be weighed against the public benefits of the proposed development. Though the appellant refers to the desire for additional space, I have not been referred to any public benefits arising from the proposal and therefore I conclude that the proposed development would conflict with the Framework.

    Consequently, I conclude that the development would harm the character and appearance of the host property and would not preserve or enhance the character or appearance of the CA. This would be contrary to Policies CP1 and CP12 of the [name] 2011 and Policies DM1, DM3 and DM6 and Appendix 2 of the Development Management Policies Local Development Document

    Together these require developments to preserve or enhance the character or appearance of conservation areas, respect the character of the street scene and retain trees of local amenity value. It would also conflict with the Framework which requires development to be sympathetic to local character and to retain existing trees wherever possible.

  4. Section 05

    Living conditions

    The proposal includes a 21sqm balcony cut into the rear roof, accessed via glazed doors from habitable rooms on the second floor. The rear elevation of the extended house would roughly align with the neighbouring dwellings at Nos 79 and 83. The elevated position and scale of the proposed balcony, the positioning of the extension relative to the neighbouring houses and the amount of second floor rear glazing would result in an unacceptable loss of privacy in the rear gardens at Nos 79 and 83 and therefore harmfully affect the living conditions of the occupiers. As the extension would be higher than the existing house and introduce large areas of glazing and a balcony in the roofspace, there would be greater overlooking to neighbouring properties than at present.

    Overall, I conclude that the proposal would adversely affect the living conditions of the occupiers of Nos 79 and [address] with particular regard to their privacy. This would be contrary to Policies CP1 and CP12 of the [name] 2011 and Policy DM1 and Appendix 2 of the Development Management Policies Local Development Document 2013. Together these seek to protect built environments from inappropriate development and protect residential amenity, including privacy. It would also conflict with the Framework which requires decisions to provide a high standard of amenity for existing users.

  5. Section 06

    Conclusion

    For the reasons given above, the proposal would conflict with the development plan as a whole and there are no material considerations, including the Framework, that would outweigh the conflict. Therefore, 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 4490No official casework-database value to compare
    Extracted decision date · page 1
    12 May 2023Matches the official casework database
    Extracted site visit dates
    28 March 2023 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3305489
Application reference
22/0734/FUL
Lead case reference
Not recorded
Planning authority
Three Rivers District Council
Planning authority code
E07000102

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
Yes
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
18 August 2022
Valid date
18 August 2022
Start date
11 January 2023
Planning authority decision date
22 June 2022
Appeal decision date
12 May 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
32496
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