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.
Section 02
Decision
The appeal is dismissed.
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.
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
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.
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.
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.
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.
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.
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