Appeal 3330028
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Official decision document
The decision, section by section
9 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
erection of a detached outbuilding.
Section 02
Decision
The appeal is dismissed.
Section 03
Preliminary Matters
The planning application was submitted as retrospective development. The Council considered the proposal on this basis, and so shall I.
The description of development on the appeal form differs slightly from that on the planning application form. No confirmation has been provided of an agreed change. I have therefore used that as set out on the planning application form.
[name] 2023, a revised version of the National Planning Policy Framework (the Framework) was published. The paragraphs most pertinent to this appeal are unchanged, other than their numbering. As such neither party is prejudiced by a lack of consultation on the revised Framework.
The evidence before me refers to the Surrey Hills Area of Outstanding Natural Beauty (AONB). On 22 November 2023, all designated AONBs in England and Wales were renamed “National Landscapes”. I have therefore referred to the Surrey Hills National Landscape in my decision.
Section 04
[name]
The main issues are: • whether the proposed development would be inappropriate development in the Green Belt having regard to the Framework and relevant development plan policies, including the effect upon openness; and • whether the 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
Inappropriate development and openness
The Framework identifies that the fundamental aim of Green Belt policy is to prevent urban sprawl by keeping land permanently open; the essential characteristics of Green Belts are their openness and permanence. It goes on to state that inappropriate development is, by definition, harmful to the Green Belt and should not be approved except in very special circumstances; and that the construction of new buildings within the Green Belt is inappropriate development.
There are, however, a limited number of exceptions to this, as set out in paragraph 154 of the Framework. Paragraph 154 c) refers to 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 1.
While there is no specific exception for curtilage outbuildings within the Framework, it is established practice to consider such buildings as extensions to a dwelling under paragraph 154 c) where the proposed use is ancillary and the proposed building is in proximity to its host, as is the case in the proposal before me.
Taken together, Policy RE2 of the Waverley Borough Local Plan Part 1: [name] and Sites 2018 (LPP1) and Policy DM14 of the Waverley Borough Local Plan Part 2: Site Allocations and Development Management Policies 2023 (LPP2) broadly conform to the Framework.
The Framework does not define what may constitute a disproportionate addition. However, and amongst other things, Policy DM14 sets out that extensions in the Green Belt should not be disproportionate to the original building (as it existed on 31 December 1968); that extensions which would increase floorspace by 40% or more over that of the original building will normally be considered to be disproportionate; and whether a development is disproportionate will be assessed by changes in scale, mass, height and floorspace. Policy DM14 also sets out factors to be taken into account when assessing openness.
The appellant states that the host building has an original floorspace of about 236m2, and that the proposed outbuilding would be about 99m2, representing an increase of about 40%. However, by my calculation, the increase would be almost 42%, which is above the threshold identified in Policy DM14.
The proposal would not create floorspace within the volume of an existing building, such as a loft or cellar conversion; and the appeal site is located outside any defined settlement area. Therefore, it would not meet the circumstances identified in the explanatory notes to Policy DM14, where proposals above the 40% threshold may be considered acceptable.
The proposal includes a garage and store to the ground floor, with office space above, together with an external staircase and balcony. While its eaves height would be 3m, its ridge height would be 5.7m, just about 1m lower than its host. In my judgement the proposed outbuilding is of a significant height, width 1 The Framework defines ‘original building’ as the building as it existed on 1 July 1948, or if it was constructed after that date, as it was built originally. and depth, such that its overall scale and mass is substantial in comparison to its host. Consequently, the proposed outbuilding would form a disproportionate addition not only in floorspace terms, but also by virtue of its scale and mass.
Notwithstanding my findings above that the proposal falls to be considered as an extension to a building, I have considered the appellant’s further ground of appeal that the proposal should also be considered in regard to the exception under paragraph 154 g) of the Framework. This refers to the limited infilling or the partial or complete redevelopment of previously developed land (PDL) whether redundant, or in continuing use (excluding temporary buildings).
The appellant accepts that limited infilling generally relates to new dwellings. Even if the proposal should be considered as PDL, the definition of PDL in the Framework makes clear that it should not be assumed that the whole of the curtilage should be developed. The relevant test is whether the development would have a greater impact on the openness of the Green Belt.
Although sited at the location of the previous garage, the proposed outbuilding occupies a much larger footprint than it, due to its greater width and depth. The Council calculates this increase to be about 175%, which is not disputed by the appellant. There are no volume calculations before me. Given that the proposed outbuilding is taller, wider and deeper than the previous garage, it is clearly of a much larger scale, volume and mass. Therefore, it has a significantly greater spatial impact on the openness of the Green Belt.
The host property is within a large plot, with vegetation along its front boundary, to include mature trees. Due to its height and width, the proposed outbuilding appears in very limited public views along the street. It is also within view from neighbouring lower lying properties, but at some distance. Consequently, the proposed outbuilding has a greater impact on the visual aspect of openness, but to a limited extent.
For these reasons, the proposed development would fail to preserve the openness of the Green Belt.
I therefore conclude that the proposed development is inappropriate development in the Green Belt, which is by definition harmful, and that it fails to preserve the openness of the Green Belt. It conflicts with LPP1 Policy RE2, LPP2 Policy DM14 and the requirements of the Framework.
In reaching my findings, I have taken account of caselaw 2 referenced by the appellant, regarding the application of national planning policy with regard to outbuildings and PDL.
Section 06
Other considerations
The appellant claims that a rear extension and other outbuildings could be erected under permitted development rights to deliver a garage, storage building and office space, with a far greater floorspace than that constructed. In this regard, such rights could represent a theoretical fallback position. 2 Warwick District Council v Secretary of State for [name], Housing and Communities [2022] EWHC 2145 (Admin) (12 August 2022); Sevenoaks District Council v Secretary of State for the Environment and Dawe (1997); Dartford Borough v The Secretary of State for Communities and Local Government & Ors [2017] [name] 141 (14 March 2017); Turner v SSCLG & [name] [2016] [name] 446.
However, I have not been provided with clear and compelling evidence that the erection of an extension and other outbuildings would meet the limitations as set out in the GPDO3. In addition, there is no substantive evidence to indicate a significant probability that such a fallback position would be constructed should this appeal be dismissed.
On this basis, and in the absence of any prior approval consent or lawful development certificate, I cannot be certain that even if there was a realistic prospect of such a fallback, that it would result in the same or greater harm than I have identified with the scheme before me. Consequently, this matter is of negligible weight.
I am advised that the appellant is employed by an American company with working hours behind that of the UK. As a play/musical director, the appellant teaches vocal and acting lessons over ‘Zoom’ calls. It is further advised that such activities if undertaken during the night in the main dwelling would have a massive impact upon the sleep quality of the other occupants of the host dwelling; and the appellant is also required to be in close enough proximity to be available should her children need her during the night.
I am sympathetic to the appellant’s personal circumstances. I accept that the best interest of the children would, in principle, be served by the appellant’s close proximity to her children in such circumstances, and that family members would benefit from peaceful sleep. However, family and/or employment circumstances can be expected to change over time, whereas the proposed outbuilding would remain on the site and continue to cause harm to the Green Belt in perpetuity. Furthermore, it has not been demonstrated that the proposal is the only way to meet the appellant’s objectives.
I have had due regard to the Public Sector Equality Duty set out under section 149 of the Equality Act 2010, as the children would share the protected characteristics of age. The proposal would assist in eliminating discrimination against persons with the protected characteristics of age, advancing equality of opportunity for those persons and fostering good relations between them and others. I must also consider the rights of the appellant and her family to peaceful enjoyment of their possessions and to a private and family life and home, under Article 1 of the [name] and Article 8 of the Human Rights Act 1998.
Having regard to all of the above, these matters would attract limited weight in favour of the proposal. However, if I were to dismiss the appeal, it would be proportionate and necessary to do so in the pursuit of a well-established and legitimate aim: the protection of the Green Belt in the wider public interest. Any interference with qualified rights in this instance would accord with the law. I therefore find that the benefits of the proposal to the appellant, her children and her family would not outweigh the harm to the Green Belt in this case. [name] were to dismiss the appeal, it would be proportionate and necessary to do so.
The main parties agree that the proposal would be of a satisfactory design and would not result in harm to the Surrey Hills National Landscape or an Area of [name]. I find no reason to consider otherwise. Such matters 3 The Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended). are neutral factors in my assessment, offering no weight either for or against the proposal.
The main parties agree that the proposal does not result in any harm to the amenities of neighbouring occupiers, and I find no reason to consider otherwise. However, this is a neutral factor in my assessment, carrying no weight for or against the proposal, as does the fact that the design of the outbuilding is acceptable.
Section 07
Green Belt Balance
I have found that the proposal would be inappropriate development within the Green Belt, which is, by definition, harmful. I have also found that the proposal would fail to preserve the openness of the Green Belt. In accordance with the Framework, I am required to give substantial weight to any harm to the Green Belt. The Framework makes clear that the harm to the Green Belt by reason of inappropriateness, and any other harm resulting from the development, must be clearly outweighed by other considerations for planning permission to be granted.
I have found that the benefits of the proposal to the appellant, her family and her children would attract limited weight, and if I were to dismiss the appeal, it would be a proportionate and necessary act in the wider interest of the Green Belt.
Although there are benefits that weigh in favour of the scheme, they do not clearly outweigh the substantial harm arising to the Green Belt. Consequently, the very special circumstances that are necessary to justify inappropriate development in the Green Belt do not exist in this case.
Section 08
Other Matters
The main parties agree that as the proposed development is for a domestic outbuilding, it is not likely to result in a significant increase in the number of people permanently residing on the site and therefore would not have a likely significant effect on the integrity of the Wealden Heaths Special Protection Areas. I find no reason to consider otherwise.
Section 09
Conclusion
For the reasons given above, 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 5599No official casework-database value to compare
- Extracted decision date · page 1
- 14 June 2024Matches the official casework database
- Extracted site visit dates
- 16 April 2024 (page 1)
Reference and authority
Official identifiers and the planning authority recorded against this case.
- Case reference
- 3330028
- Application reference
- WA/2023/01348
- Lead case reference
- Not recorded
- Planning authority
- Waverley Borough Council
- Planning authority code
- E07000216
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
- 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
- Yes
- 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
- 22 September 2023
- Valid date
- 22 September 2023
- Start date
- 24 November 2023
- Planning authority decision date
- 7 August 2023
- Appeal decision date
- 14 June 2024
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
- 52451
- 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