Appeal 3339880
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
6 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
an extension to the ground floor living area.
Section 02
Decision
The appeal is dismissed.
Section 03
Preliminary Matters
Under Article 3(1) and Schedule 2, Part 1, Class A of the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended (the GPDO), planning permission is granted for the enlargement of a dwellinghouse subject to limitations and conditions.
Where an application is made for a determination as to whether prior approval is required for development which exceeds the limits in paragraph A.1(f) but is allowed by paragraph A.1(g) to Part 1, paragraph A.4(3) provides that the local planning authority may refuse the application where it considers that the proposed development does not comply with, conditions, limitations or restrictions applicable to permitted development.
[name].4(7) to Part 1 requires the LPA to assess the impact of the proposed development on the amenity of all adjoining premises, taking into account any representations received.
The evidence confirms that the Council undertook the required consultation with adjoining neighbours and no objections were received. Therefore, as no objection has been raised by an owner or occupier of adjoining premises, in the event the proposal was found to be permitted, prior approval as to the impact of the proposal on the amenity of adjoining premises is not required in this case.
In this case the Council refused prior approval on the basis that the proposed scheme would result in an extension that would extend beyond a wall that forms a side elevation and would have a width greater than half the width of the original dwellinghouse. As such it would exceed the limitations set out under Class A.1(j).
Section 04
Main Issue
The main issue is whether or not the proposal is permitted under Schedule 2, Part 1, Class A, of the GPDO with particular regard to [name].1(g) and A.1(j).
Section 05
Reasons
The appeal site, [site address] , comprises a two-storey, detached dwelling which is accessed from [address]. The proposed extension would be located to the rear of the host property. However, the rear elevation, as shown on the submitted plans, includes a small single storey projecting element (bay window).
The Technical Guidance1, published by the Government, includes guidance on the application of the GPDO where the original dwellinghouse includes a staggered rear elevation, such as is the case in this appeal scheme. The guidance states that a wall forming a side elevation of a house will be any wall which cannot be identified as being a front or rear wall. A diagram found on page twenty-two of the guidance is particularly relevant in that it indicates that the side wall of the single storey projecting element, comprises a side elevation of the dwelling, as it cannot be described as either a front or rear wall.
Although the submitted plans show that the projecting element would be demolished, this would not preclude it from remaining part of the original dwellinghouse. The Technical Guidance defines the term ‘Original’ as a building as it existed on 1 July 1948 where it was built before that date, and as built if built after that date. Therefore, on the basis of the submitted plans, and in the absence of any evidence to the contrary, I find that the projecting element can be considered part of the original dwellinghouse for the purposes of applying the provisions of the GPDO.
Consequently, I conclude that the proposed extension would extend beyond a wall forming a side elevation of the original dwellinghouse and would be more than half the width of the original dwellinghouse, given that it would be the same width as the dwelling. Therefore, it would exceed the limitations set out at [name].1(j)(iii) and does not constitute permitted development under Schedule 2, Part 1, Class A of the GPDO even if the proposal satisfies the limitations set out under [name].1(g).
Section 06
Conclusion
For the reasons given above, I conclude that 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 6No official casework-database value to compare
- Extracted decision date · page 1
- 30 September 2024Matches the official casework database
- Extracted site visit dates
- 3 September 2024 (page 1)
Reference and authority
Official identifiers and the planning authority recorded against this case.
- Case reference
- 3339880
- Application reference
- 23/3002/PDE
- Lead case reference
- Not recorded
- Planning authority
- Richmond Upon Thames London Borough Council
- Planning authority code
- E09000027
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
- 3. Refused prior approval of permitted development rights
- Appeal reason
- Refusal
- Type detail
- Unknown
- 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
- No
- 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
- 1 March 2024
- Valid date
- 1 March 2024
- Start date
- 30 April 2024
- Planning authority decision date
- 14 December 2023
- Appeal decision date
- 30 September 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
- 57712
- First seen
- 20 August 2026 at 14:24
- Last seen
- 20 August 2026 at 16:28
- Removed from release
- Not recorded
- Record created
- 20 August 2026 at 14:24
- Record updated
- 24 August 2026 at 16:21