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Official casework recordDismissedCurrent release

Appeal 3353599

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

an additional storey on an end of terrace dwelling house.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    Background and Main Issue

    It is not a matter of dispute between the main parties that the proposal complies with the limitations and restrictions of [name].1 of Class AA of the GPDO. Based on the evidence before me, I have no reason to reach a different view.

    However, the conditions of development permitted by Class AA are subject to, amongst others, [name].2.(3)(a)(ii) of Class AA of the GPDO, which requires the developer to seek prior approval from the local planning authority as to the external appearance of the enlarged dwellinghouse, including the design and architectural features of (aa) the principal elevation of the dwellinghouse, and (bb) any side elevation of the dwellinghouse that fronts a highway.

    In assessing the effect of the appeal proposal on the external appearance of the building, the local planning authority has, under [name].3.(3)(a) and (b) of Class AA of the GPDO, concluded that the appeal proposal does not comply with the condition in [name].2.(3)(a)(ii) of Class AA of the GPDO, and it refused prior approval.

    I therefore consider the main issue in this appeal is whether prior approval should be granted under Article 3(1) and Schedule 2, Part 1, Class AA of the GPDO, having particular regard to the effect of the proposed development on the external appearance of the building.

  3. Section 04

    Reasons

    The appeal property is an end of terrace dwelling forming part of a short [address] that is covered by a simple gabled roof with a uniform height and continuous unbroken ridge and eaves levels. It is set amongst a group of 2 storey terraces that are very similar in height, form and appearance. They are laid out in a distinctive pattern on land between the north side of [address] and the railway line, either fronting onto the road or fronting onto one of the pedestrian paths that join it.

    The character and appearance of the area is therefore defined by this strongly cohesive and well-ordered group of 2 storey terraces. The appeal terrace’s height, form and appearance are consistent with the terraces in this group, and it therefore makes a positive contribution to the character and appearance of the area.

    The elevated bulk of the proposed additional storey would significantly increase the appeal dwelling’s height and massing. As such, it would project well above the roof level of the remaining dwellings within the host terrace, and those within the wider group. In views from the pedestrian path to the front of the appeal property and from [address] looking along this path, the proposed additional storey would appear as a visually incongruous and dominant addition to the host terrace that would harmfully disrupt and unbalance its appearance.

    Seen in the context of the 2 storey terraces in the area, the proposed additional storey would negatively erode and undermine the appeal terrace’s positive contribution to the character and appearance of the area, causing significant visual harm. The proposal’s external materials and the pattern, proportions and designs of window apertures and frames would be in-keeping with the style of the host terrace. However, this would not overcome the visual harm caused by its height, scale and resultant elevated bulk.

    The single storey bungalow at Number 75 is much lower in height than the 2 storey dwellings in the area. Both it and the detached 2 storey hipped roofed properties at Numbers 76-77 are of a different character and appearance to the group of terraces in the area, including the appeal property. Consequently, Numbers 75-77 do not establish a visual context for the 3 storey dwelling that would be created by the appeal proposal, nor are they sufficiently numerous as to establish a mixed street scene within which its elevated bulk would be satisfactorily absorbed into.

    The existing evergreen trees growing on the appeal site and the trees alongside the railway line contribute little to the character and appearance of the area, nor would they satisfactorily mitigate the proposed development’s visual harm. There is no substantive evidence before me to demonstrate that the existing evergreen trees could grow to form an impenetrable barrier to views of the proposed development. In any case, given their proximity to the appeal property’s walls, I cannot be satisfied that a future owner would not seek to have those trees felled.

    For these reasons, I conclude that the proposed additional storey would have a significantly harmful effect on the external appearance of the building. As such, it would be contrary to Paragraph 135 of the National Planning Policy Framework (“the Framework”), which requires development to, amongst others, be visually attractive and sympathetic to local character including the surrounding built environment.

  4. Section 05

    Other Matters

    The appeal proposal would meet the appellant’s need for additional living accommodation which could not be met through converting the existing loft space. I see no basis to doubt that it would make more efficient use of the appeal property’s existing footprint and could contribute to avoiding developing land not covered by buildings, thus helping to reduce the loss of vegetation and porous surfaces. However, the benefits arising from the proposal would not be sufficient to outweigh the significant visual harm that I have identified above.

    The appeal proposal would provide adequate living conditions for future occupiers and would not harm the living conditions of the occupiers of nearby properties. It would not affect listed buildings or conservation areas. However, an absence of harm, including in these respects, is a neutral factor that would not weigh in favour or against the proposal.

    [name] 1, Class AA of the GPDO, I can only have regard to the Framework, so far as relevant to the subject matter of the prior approval. In so doing I have found the appeal proposal to be contrary to Framework Paragraph 135. Had it been necessary to apply the Framework’s presumption in favour of sustainable development, I am satisfied that the adverse visual impact of the appeal proposal would significantly and demonstrably outweigh its benefits.

    On the evidence before me I am satisfied that the potential effects of my decision to dismiss the appeal on the rights of the appellant to a private and family life and home under Article 1 and Article 8 of the Human Rights Act 1998, would be proportionate in this instance.

  5. Section 06

    Conclusion

    For the reasons given above, I conclude that the appeal proposal would have a significantly harmful effect on the external appearance of the building and therefore prior approval should not be granted under Article 3(1) and Schedule 2, Part 1, Class AA of the GPDO. It follows that the appeal should be 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 3654No official casework-database value to compare
    Extracted decision date · page 1
    29 January 2025Matches the official casework database
    Extracted site visit dates
    24 January 2025 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3353599
Application reference
24/00863/PAP
Lead case reference
Not recorded
Planning authority
Spelthorne Borough Council
Planning authority code
E07000213

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
3. Refused prior approval of permitted development rights
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
10
Site in Green Belt
No
Agricultural holding
Not recorded
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
11 October 2024
Valid date
11 October 2024
Start date
23 October 2024
Planning authority decision date
13 September 2024
Appeal decision date
29 January 2025

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
63726
First seen
20 August 2026 at 14:25
Last seen
20 August 2026 at 16:28
Removed from release
Not recorded
Record created
20 August 2026 at 14:25
Record updated
24 August 2026 at 16:21