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Official casework recordDismissedCurrent release

Appeal 3313938

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

10 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

single storey extension to side.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    [name]

    The main issues are: • Whether the proposal would be inappropriate development in the Green Belt having regard to the National Planning Policy Framework (the Framework) and any relevant development plan policies. • The effect of the proposal on the openness of the Green Belt • The effect of the proposal on the character and appearance of the area. • Whether any harm by reason of inappropriateness, and any other harm, would be clearly outweighed by other considerations, so as to amount to the very special circumstances required to justify the proposal.

  3. Section 04

    Whether inappropriate development

    The Framework sets out that the fundamental aim of Green Belt policy is to prevent urban sprawl by keeping land permanently open; and the essential characteristics of Green Belts are their openness and their permanence. The Framework goes on to state that inappropriate development is harmful to the Green Belt. The construction of new buildings in the Green Belt should be regarded as inappropriate, and thus should be approved only if very special circumstances exist, unless they come within one of the categories in the closed list of exceptions in paragraphs 149 and 150 of the Framework.

    Of relevance to this appeal is that ‘the extension or alteration of a building provided that it does not result in disproportionate additions over and above the size of the original building, is listed as an exception at paragraph 149 c). Policy GB1 of the [name] and Development Management Plan (ADMP), sets criteria for limited extensions to dwellings in the Green Belt. These include that the volume of the extension, taking into account any previous extensions, should be proportional and subservient to the original dwelling. As well as that the total floorspace would not result in an increase of more than 50% of the original dwelling. This is supported by the advice in the

  4. Section 05

    Development in the Green Belt Supplementary Planning Document (SPD)

    The evidence from the Council is that [site address] was originally on a smaller rectangular footprint with around 97sqm of floorspace. Subsequently, there have been five extensions added to the property, which increased the floorspace by approximately 82sqm. These figures are not disputed by the appellant.

    The proposed extension would add a further 25sqm of floorspace. This would result in around a 110% increase in floorspace from the original building. Furthermore, together the additions would result in a property with a significantly larger footprint and bulk compared to the original cottage.

    Therefore, the extension would result in a considerable increase to the size of the original building with a marked enlargement to the floor area, massing and footprint. Additionally, the proposed percentage increase in floor area would appreciably exceed the 50% increase set out in Policy GB1 of the ADMP. As such the development would result in a disproportionate addition over and above the size of the original building.

    Consequently, for the reasons described above, the appeal scheme is inappropriate development in the Green Belt both in the terms of the Framework and Policy GB1 of the ADMP as well as the advice in the SPD.

  5. Section 06

    Openness

    Openness has both spatial and visual aspects. Visually, the extension would be screened by the existing building and the boundary treatment and would not be highly visible in public views. However, the proposed extension would introduce a large and permanent single storey addition to a part of the site which is currently a terrace area free from buildings. Therefore, there would be harm to spatial openness. Taking both of these aspects into account the degree of harm to openness would be modest.

    Nevertheless, for the reasons above, the proposed development would be harmful to the openness of the Green Belt. Therefore, it would be contrary to the Framework in this regard.

  6. Section 07

    Character and Appearance

    [site address] is one of a handful of houses located along [site address] . Properties are spacious and set apart from one another and surrounded by rural open fields. Consequently, the appeal site appears as part of a small cluster of houses within the wider countryside. The appearance of the property. and those nearby, are traditional and the materials at [site address] include render, tile hanging, a tiled roof and domestic fenestration. Consequently, the host property appears as a clearly residential building within the wider rural area.

    The proposed extension would have large areas of glazing, with some brickwork and an area of cladding which the appellant states would be tile cladding. The single storey roof would be low pitched. Although the proposed extension would not be identical to the more traditional appearance of [site address] , nevertheless, it would reflect the materials used on the existing dwelling. There would also be a clearly domestic character to the modest extension. As such it would be appropriate to the residential appearance of the house.

    Consequently, it would have an acceptable effect on the character and appearance of the area. As such, in this regard, it would be in accordance with policies SP1 and LO8 of the CS and EN1 of the ADMP. Together these seek high quality design, including with regard to the distinctive features of the countryside and local character.

  7. Section 08

    [name]

    The proposed development would create additional living accommodation for the existing occupiers. However, I am not persuaded that this is anything other than a private benefit and as such I afford this limited weight. The Council have not identified harm to the streetscene, Area of Outstanding Natural Beauty or residential amenity and I find no reason to disagree with these conclusions. Nor was there any objection from Penshurst Parish Council. However, the lack of harm in these regards is a neutral factor that does not weigh in favour of the appeal scheme.

    My attention is drawn to an extension permitted at Polbream, [site address] . I note that this was not considered to be a disproportionate addition, and it did not increase the floor area of the property by more than 50% compared to the original building. As such it would not have been inappropriate development in the Green Belt and consequently these considerations are notably different to those before me now.

  8. Section 09

    Green Belt Balance

    The Government attaches great importance to Green Belts. Paragraph 148 of the Framework states that substantial weight should be given to any harm to the Green Belt. I have found harm to the Green Belt by reason of the proposed development’s inappropriateness. There would also be harm to the Green Belt due to the proposed development’s modest effect on openness. The considerations advanced by the appellant, even when considered together, do not clearly outweigh the totality of the harm.

    The very special circumstances necessary to justify the development therefore do not exist. Consequently, the proposed development would conflict with Paragraph 148 of the Framework and Policy GB1 of the ADMP, the aims of which are set out above.

  9. Section 10

    Conclusion

    The proposal would not accord with the development plan and there are no other considerations, including the provisions of the Framework, to indicate that the appeal should be determined otherwise. Therefore, for the reasons given above, I conclude that this 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 357No official casework-database value to compare
    Extracted decision date · page 1
    9 November 2023Matches the official casework database
    Extracted site visit dates
    25 October 2023 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3313938
Application reference
22/02133/HOUSE
Lead case reference
Not recorded
Planning authority
Sevenoaks District Council
Planning authority code
E07000111

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
20 m²
Number of residences
0
Site in Green Belt
Yes
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
28 December 2022
Valid date
28 December 2022
Start date
4 April 2023
Planning authority decision date
12 October 2022
Appeal decision date
9 November 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
41661
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