Appeal 3287460
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
a part single/part two storey side/rear extension and relocation of front entrance door following demolition of existing conservatory.
Section 02
Decision
The appeal is allowed and planning permission is granted for a part single/part two storey side/rear extension and relocation of front entrance door following demolition of existing conservatory at [site address] , Ascot [postcode] in accordance with the terms of the application, Ref 21/01877, dated 1 June 2021, subject to the following conditions:
The development hereby permitted shall not begin later than three years from the date of this decision.
The development hereby permitted shall be carried out in accordance with the approved plans: 2021-1407-PL ([name]) ([name] and Elevations) and 2021-1407-PL (Existing and Proposed Site Plans).
The materials to be used in the construction of the external surfaces of the development hereby permitted shall match those used in the existing building.
Section 03
Appeal Procedure
The site visit was undertaken by an Appeal Planning Officer whose recommendation is set out below and to which the Inspector has had regard before deciding the appeal.
Section 04
Preliminary Matters
After the decision notice was issued, the new Borough Local Plan 2013-2033 was adopted and a number of policies have been superseded. I must base my recommendation on the current adopted development plan. The Council has drawn attention to a number of policies and my recommendation will take particular account of those that are relevant to the Council’s reason for refusal.
There is a discrepancy in the descriptions of development used within the documents submitted during this appeal process. I have chosen the description used by the Council, which was also included by the appellant in the appeal form, in the interests of clarity.
Section 05
[name]
The appeal site is within the Green Belt and therefore the main issues are: • whether the proposal would be inappropriate development in the Green Belt for the purposes of the National Planning Policy Framework (the Framework) and any relevant development plan policies. • If so, the effect of the proposal on the openness of the Green Belt.
Section 06
Reasons for the Recommendation
The appeal site is a semi-detached dwelling that has a rear kitchen extension and conservatory situated within a generously-sized plot on the northern side of [address]. It has a large rear garden with tall, mature vegetation along the shared side boundaries with the neighbouring properties. There is also mature vegetation at the front of the property which limits views of the site from the highway. The semi-detached pair share a broadly similar design, however there is a large two-storey extension to the rear of the attached neighbouring property.
The proposal would result in the demolition of the existing conservatory and the construction of a part single and part two-storey extension to the rear and side of the dwelling. It would include a new conservatory at ground floor level and would relocate the front entrance.
Section 07
Whether there would be inappropriate development in the Green Belt
Paragraph 147 of the Framework establishes that inappropriate development is, by definition, harmful to the Green Belt and should not be approved except in very special circumstances. Paragraph 149 outlines that the construction of new buildings should be regarded as inappropriate, save for a number of exceptions. One of these 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.
The appellant has indicated that, as the construction date of the rear kitchen extension cannot be confirmed, it should be regarded as part of the original dwelling. The Council were provided with an additional opportunity to submit evidence that could provide clarity on this matter, such as written records, historic maps or aerial photography. The Council have confirmed that they have no further evidence. In this circumstance, and with the evidence that I have been provided with, it is now reasonable to assume that the kitchen extension is part of the original building as I do not have any evidence to the contrary.
This being the case, the proposal would result in a 32% increase of floorspace at the appeal dwelling, which would be an acceptable addition in relation to the size of the original building. Moreover, the proposed volume and bulk of the appeal scheme would be visually subordinate to the main dwelling and, when viewed in the context of the large plot size, would not appear as a disproportionate extension of the original dwelling.
Given the above, the proposal would not constitute inappropriate development in the Green Belt. It would accord with the Borough Local Plan 2013-2033, adopted February 2022, specifically Policies SP1 and QP5 which seek to ensure the Green Belt is protected from inappropriate development in line with Government policy.
As the proposal would not constitute inappropriate development in the Green Belt, it is not necessary to consider its impact upon openness.
Section 08
Conditions
In addition to the standard time period for commencement and requiring that the development be carried out in accordance with the approved plans, which is necessary for certainty, I recommend that matching external materials are used to preserve the character and appearance of the dwelling.
Section 09
Conclusion and Recommendation
The proposal would not be inappropriate development in the Green Belt and would accord with the development plan, when considered as a whole. Based on the above, and having regard to all matters raised, I recommend that the appeal should be allowed.
Section 10
Inspector’s Decision
I have considered all the submitted evidence and the Appeal Planning Officer’s report and on that basis the appeal is allowed.
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 859No official casework-database value to compare
- Extracted decision date · page 1
- 14 July 2022Matches the official casework database
- Extracted site visit dates
- 12 July 2022 (page 1)
Reference and authority
Official identifiers and the planning authority recorded against this case.
- Case reference
- 3287460
- Application reference
- 21/01877/FULL
- Lead case reference
- Not recorded
- Planning authority
- Royal Borough of Windsor and Maidenhead
- Planning authority code
- E06000040
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
- 70 m²
- Number of residences
- 1
- 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
- Allowed
- Decision category
- Allowed
- Received date
- 22 November 2021
- Valid date
- 22 November 2021
- Start date
- 15 February 2022
- Planning authority decision date
- 22 September 2021
- Appeal decision date
- 14 July 2022
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
- 17762
- First seen
- 20 August 2026 at 14:24
- Last seen
- 20 August 2026 at 16:26
- Removed from release
- Not recorded
- Record created
- 20 August 2026 at 14:24
- Record updated
- 24 August 2026 at 16:21