Appeal 3351933
Public case and site metadata stored from the official casework database, including fields that were empty in the source release.
A clearer next step
See how Inspectors approached issues like yours
Bring your planning decision into a private workspace. We separate the disputed points, then match them with source-located Inspector reasoning from similar appeals.
- See which issues the decision appears to turn on
- Compare the facts and open the full appeal records
One private comparison
How the refusal review worksOne-off service · No subscription
Similar appeals are evidence to inspect, not a prediction of your outcome.
Official decision document
The decision, section by section
12 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 two detached outbuildings.
Section 02
Decision
The appeal is dismissed.
Section 03
Appeal Procedure
The site visit was undertaken by a representative of the Inspector whose recommendation is set out below and to which the Inspector has had regard before deciding the appeal.
Section 04
Preliminary Matters
On 12 December 2024 the Government published a revised National Planning Policy Framework (the Framework). Both parties have had the opportunity to comment on any implications for the appeal, and I have taken comments received into account.
I have used the Council’s description of development as it more clearly and concisely describes the proposals. The description on the application form also only refers to one outbuilding, when two are proposed.
Section 05
[name]
The main issues in the appeal are: • Whether the proposal would be inappropriate development in the Green Belt having regard to the Framework; • The effect of the proposal on the openness of the Green Belt; • The effect of the proposed development on flood risk, flood defences and maintenance of the adjacent [name] and [name] watercourse; and • If the development would be inappropriate, whether the harm to the Green Belt by way of inappropriateness and any other harm, would be clearly outweighed by other considerations so as to amount to the very special circumstances necessary to justify it.
Section 06
Whether it would be inappropriate development
The appeal property contains a large, detached dwelling, with a spacious rear garden intersected by small branches of the [name]. It features a patio area and swimming pool, areas laid to lawn, footbridge river crossings and a number of outbuildings and structures. The main branch of the [name] is located outside, but immediately adjacent to the appeal site.
The proposal is for the construction of two detached outbuildings. Paragraph 154 of the Framework states that new buildings are inappropriate in the Green Belt unless they fall within the given list of exceptions. Policy CP11 of the Local Development Framework Core Strategy (adopted 17 October 2011) (the ‘[name]) is generally consistent with the Framework relating to the Green Belt. It refers to the pressure on the Green Belt within the District, emphasising the general presumption against inappropriate development. Policy DM2 of the [name]
Section 07
Development Management Policies Local Development Document (adopted July
(the ‘LDD’) states that proposals for new buildings in the Green Belt will be assessed in accordance with the Framework. However, it also supports the provision of ancillary buildings in the Green Belt subject to demonstrating, amongst other things, that the proposal would not adversely affect the openness of the Green Belt and the landscape.
One of the exceptions in the Framework 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. As the proposed outbuildings are set away from the main dwelling, I consider that the substantial physical separation means that the proposal should not be considered as an extension to the existing building. The Council have come to the same conclusion and the appellant does not dispute this.
The appellant has however stated that the outbuildings have been designed to store garden equipment and should therefore be classified as buildings for agriculture. Buildings for agriculture is another exception listed in the Framework where development would not be inappropriate in the Green Belt. However, the appeal property is a residential dwelling and on this basis I cannot accept the proposed buildings are for agricultural use.
The updated Framework has introduced the concept of grey belt land. This establishes that development would not be regarded as inappropriate where it would utilise grey belt land and would not fundamentally undermine the purposes of the remaining Green Belt; where it would meet a demonstrable need; would be in a sustainable location; and (where applicable) meets the ‘[name].
The appeal site does not strongly contribute to the purposes of the Green Belt. The appeal site is located close to [name] and appears to me to be a reasonably sustainable location. However, there is no demonstrable unmet need for this type of development according to the Council, albeit I note the appellant claims a personal need, and the ‘[name] are not applicable.
The proposed development is therefore inappropriate development in the Green Belt and is contrary to the Framework, Policy CP11 of the [name] and Policy DM2 of the LDD.
Section 08
Openness
The Framework states 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 their permanence”. Openness can be determined by visual and spatial aspects.
Whilst of a fairly modest size in the context of the appeal site, spatially, the proposed outbuildings would add structures in a previously undeveloped part of the appeal site, within the Green Belt. It would therefore reduce its openness.
The two outbuildings would be located in a relatively discreet corner of the appeal property, away from the main dwelling. The proposed outbuildings would be screened from view by mature landscaping and a high boundary wall. The proposed outbuildings would therefore not be highly visible from within or outside the appeal site and would have a very limited impact on visual openness.
Overall, therefore, the proposal would have a harmful, albeit limited, effect on openness. This harmful impact on openness, and the inappropriateness of the proposal in principle, both carry substantial weight.
Section 09
[name] and [name]
The proposed outbuildings are located on a section of garden that has a branch of the [name] running adjacent to it on one side (within the site boundary) and the [name] on the other, just outside the site boundary.
The appellant has stated that the appeal site is located in [name] 1, however, the evidence provided by the Council and the Environment Agency indicate the proposed outbuildings would be located within [name] 3b (functional flood plain). As an ancillary building to a residential dwelling, the proposed building would fall within the ‘more vulnerable’ flood risk classification.
The appellant’s view is that the outbuildings would have a minimum impact on flooding. The appellant has stated that the floor slab of the outbuildings would be set 300mm above the design flood level (although this has not been shown on the planning drawings). Whilst the evidence from the Environment Agency refers to a flood risk assessment prepared by the appellant, this has not been provided to me as part of the appeal. I therefore do not have the evidence before me that demonstrates that the proposed development would not be at risk from flooding and not increase flood risk.
The Environment Agency have also objected to the proposals on the basis that the outbuildings would potentially restrict essential maintenance and emergency access to the watercourse, adversely impact the stability of the flood bank, interfere with natural geomorphological processes and be placed at risk of damage arising from channel migration and erosion. The Environment Agency also state that the applicant has not considered the space required (8m) for future flood defence maintenance or replacement, including the use of vehicles and heavy-duty machinery.
The appellant has highlighted to me that the proposed outbuildings would be separated from the [name] by a tall fence and mature vegetation and there would be a minimal impact on maintenance of the watercourse. I do not agree this would be the case as if future maintenance is needed it would be impeded by the location of the proposed outbuildings.
On the basis of the above, it has not been demonstrated that the proposal would not increase the risk of flooding and prevent other potential adverse impacts on the [name] and the [name]. The proposal would be contrary to the Framework and Policy CP1 of the [name] and Policy DM8 of the LDD, that seek, amongst other things, to avoid development in areas at risk of flooding, provide appropriate flood protection and mitigation measures and ensure development is normally set back from a main river with a minimum 8m wide buffer zone to prevent any significant impact from flooding.
Section 10
[name]
Paragraph 153 of the Framework states that inappropriate development is, by definition, harmful. Paragraph 153 requires substantial weight to be given to any harm to the Green Belt and requires very special circumstances to be demonstrated to clearly outweigh any harm to the Green Belt by way of inappropriateness, or any other harm.
The proposed outbuildings would enable the appellant to store garden and household equipment. I also note that there will be no change to road access arrangements and landscaping. These matters in favour of the development are weighed in the planning balance below.
Section 11
Planning Balance and Conclusion
The development is inappropriate development in the Green Belt, and harms its openness, to which I must attribute substantial weight against the development. Added to which is the harm relating to flood risk and adverse impacts on the [name] and [name]. Balanced against that are the other considerations identified above. The appellants need for the proposed development attracts only limited weight, the lack of harm to access arrangements and landscaping carries neutral weight. I conclude that the other considerations do not clearly outweigh the harm to the Green Belt and therefore there are no very special circumstances to justify the proposal.
Therefore the proposed development would be contrary to the Framework and Policies CP1 and CP11 of the [name] and Policies DM2 and DM8 of the LDD as described above.
For the reasons given above, and having regard to all other matters raised, I conclude that the appeal should be dismissed.
Section 12
Inspector’s Decision
I have considered all the submitted evidence and my representative’s report and on that basis the appeal is 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 942No official casework-database value to compare
- Extracted decision date · page 1
- 2 September 2025Matches the official casework database
- Extracted site visit dates
- 17 June 2025 (page 1)
Reference and authority
Official identifiers and the planning authority recorded against this case.
- Case reference
- 3351933
- Application reference
- 24/0745/FUL
- Lead case reference
- Not recorded
- Planning authority
- Three Rivers District Council
- Planning authority code
- E07000102
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
- 1
- 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
- 15 September 2024
- Valid date
- 15 September 2024
- Start date
- 9 October 2024
- Planning authority decision date
- 12 July 2024
- Appeal decision date
- 2 September 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
- 75604
- 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