Appeal 3362045
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
7 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 single storey rear extension.
Section 02
Decision
The appeal is dismissed.
Section 03
Preliminary Matters
The description of development used in the banner heading above is taken from the Council’s decision notice since it more concisely describes the proposed development.
Section 04
[name]
The main issues are: - Whether the proposal would be inappropriate development in the Green Belt; - The effect of the proposal on the openness of the Green Belt, and; - 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 05
[name]
The National Planning Policy Framework (the Framework) identifies that the fundamental aim of Green Belt policy is to prevent urban sprawl by keeping land permanently open. The Framework establishes that development in the Green Belt is inappropriate unless one of the exceptions it lists applies. One such exception is ‘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’.
Policy P2 of the Guildford Borough Local Plan: Strategy and Sites 2019 (the LPSS) states, among other things, that the Green Belt will be protected against inappropriate development in accordance with the Framework. Policy P2 also contains a definition of ‘original building’, being either i) the building as it existed on 1 July 1948; or ii) if no building existed on 1 July 1948, then the building as it was originally built after this date.
Based on the evidence before me, Copperkins replaced a house which formerly existed on the site. The planning history shows that development described as ‘erection of two storey house following demolition of existing house and garage’ was approved in January 20081. The appellant reports that works were completed in 2011 and it is not disputed that there was a former house which existed on the site in 1948. Therefore, for the purposes of Policy P2 the original building should be that which existed on 1 July 1948. While this definition differs from that in the Framework, I am mindful of local caselaw in this respect which confirmed the Local Plan policy should be the starting point2.
The appellant has not disputed the figures provided by the Council which suggest the original building comprised approximately 187.2sqm and the replacement building comprised 391sqm. The proposed extension would therefore result in a building which would be 119% larger in floorspace than the original building. While floorspace is only one way to measure size, this uplift is substantial. While the size of the extension now proposed is modest, the Framework nonetheless requires that it is considered alongside earlier enlargements.
For these reasons, the proposed extension, together with the earlier increase in the size of the house on the site, would result in disproportionate additions over and above the size of the original building. The proposal would therefore be inappropriate development.
Section 06
Openness
The courts have established that the openness of the Green Belt has a spatial aspect as well as a visual aspect3. Therefore, the absence of visual intrusion does not in itself mean that there is no impact on the openness of the Green Belt.
[site address] has a rural character and comprises predominantly detached properties set within generous plots and behind mature trees and hedgerows. The disperse pattern of development is appreciated from the road and this contributes strongly to the appreciation of openness in the area.
Views of the extension from any public and private viewpoints would be extremely limited given its position at the back of the building and enclosure by mature landscaped boundaries. As such I do not find harm to the visual aspect of openness. The proposal would decrease the spatial aspect of the Green Belt’s openness through increasing the size of the property and the extent of built form on the site. The proposal would therefore cause harm to the spatial aspect of the Green Belt’s openness, although this would be at the lower end of the scale given its size. There would also be some conflict with the Green Belt purpose to assist in safeguarding the countryside from encroachment, again at the lower end of the scale. [name] 1 Council reference 07/P/02448 – 14 Jan 2008 2 [name] v SSLUHC & [name] [2023] EWHC 575 (Admin) 3 Turner v SSCLG & East Dorset Council [2016] [name] 466
The proposal has been found to be inappropriate development by definition and would cause some low-level harm to the openness and purposes of the Green Belt. The Framework makes clear that inappropriate development is, by definition, harmful to the Green Belt and should not be approved except in very special circumstances. Very special circumstances will not exist unless the potential harm to the Green Belt by reason of inappropriateness, and any other harm resulting from the proposal, is clearly outweighed by other considerations. The Framework requires that substantial weight is given to any harm to the Green Belt.
The proposal would provide an extended guest bedroom or a bedroom suite suitable for the owners to use as a master bedroom which would avoid the need to use the stairs. Within their appeal statement, the appellant refers to the reoccurrence of a serious health condition, which is requiring consideration of how future health needs will be met. They describe that the proposed extension would help them to live comfortably downstairs and be cared for at home. While this is capable of being an important benefit to the appellant, there is otherwise little evidence regarding these circumstances or how they would necessitate the proposed extension. As such I can only attach moderate weight to the appellant’s need for the proposal.
The Design and [name] also refers to additional planting in the garden and associated biodiversity enhancements. Materials used in the construction of the extension could also be reclaimed and the extension fitted with energy and water saving measures. While these constitute benefits, I give these only moderate weight given the scale of the development and extent of information on those matters. While the development may be acceptable in other respects, for example in terms of its appearance and effects on the designated Surrey Hills National Landscape, these are neutral matters rather than weighing in favour of the development.
Overall, while acknowledging there would be some benefits of the appeal scheme, taken together these do not amount to considerations of sufficient weight which would clearly outweigh the harm to the Green Belt, as set out in the Framework. As a consequence, the very special circumstances necessary to justify the development do not exist. The proposal would conflict with Policy P2 of the LPSS insofar as it refers back to the provisions of the Framework.
Section 07
Conclusion
For the reasons given, the proposal would conflict with the development plan as a whole and there are not material considerations of sufficient weight which indicate that a decision should be made other than in accordance with it. The appeal is therefore 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 494No official casework-database value to compare
- Extracted decision date · page 1
- 11 June 2025Matches the official casework database
- Extracted site visit dates
- 5 June 2025 (page 1)
Reference and authority
Official identifiers and the planning authority recorded against this case.
- Case reference
- 3362045
- Application reference
- 24/P/01256
- Lead case reference
- Not recorded
- Planning authority
- Guildford Borough Council
- Planning authority code
- E07000209
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
- Yes
- 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
- 10 March 2025
- Valid date
- 14 March 2025
- Start date
- 21 March 2025
- Planning authority decision date
- 16 December 2024
- Appeal decision date
- 11 June 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
- No
- 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
- 71001
- 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