Appeal 3350321
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
for amendment to planning permission no. 23/01475/HOU for the erection of a part two-storey, part single-storey side extension and single-storey rear extension with proposed extensions of existing front and rear facing dormers to allow alterations to the two-storey side extension.
Section 02
Decision
The appeal is dismissed.
Section 03
[name]
The main issue is the effect of the development on the character and appearance of the host property and the surrounding area.
Section 04
Reasons
No.10 is a semi-detached chalet bungalow with dormers to the front. It is located to the northern side of [address], which comprises a mixture of semi-detached pairs of the same form as the appeal property and two-storey terraced houses. The pattern of development and the spacing between the buildings contributes to the character of the area.
Planning permission has been granted for a similar proposal (Council reference 23/01475/HOU) but with the first floor of the side extension offset from the boundary. This proposal would bring that element flush with the ground floor and adjacent to the boundary. The previous offset of 1m is the minimum separation distance for side extensions set out in the Council’s Design of [name] and New Residential Development - Supplementary Planning Document (SPD). The aim of the guidance is to avoid terracing.
The other half of the semi (No.12) does have a full width two-storey side extension, and therefore, there would be symmetry to the building. However, No.12 is positioned at the end of the row adjoining the rear gardens of properties in [address]. As such, the relationship and visual spacing to the side are not the same.
Whilst the scale of the development proposed through this amendment would be limited, it would eliminate the gap to the side of the property. Currently, the neighbour to the other side, No.8, does not have a side extension, but if it were to be similarly extended, there would effectively be a visual joining of the properties, resulting in the loss of the semi-detached form.
I acknowledge that there are a few examples of such extensions along [address], although they are not features which positively contribute to the street scene. The background to these in terms of their planning history and age relative to the SPD is not before me. Nonetheless, the SPD notes that poor existing extensions will not be accepted as a precedent, and these additions are not prevalent to have altered the prevailing pattern of development as a whole.
In conclusion, I find that the increased width of the extension would significantly diminish the spacing around the property to the detriment of its appearance and would fail to preserve the form and rhythm of the street scene. Thus, the development would be harmful to the character of the area and would be contrary to Policy EN1 of the [name] and Policies Development Plan Document, and the SPD. Together and amongst other matters, these seek to ensure new development embodies high-quality design and is reflective of context and protective of local character, including the visual gaps between buildings.
Section 05
Other Matters
I understand the appellant’s desire to enlarge their home, and I appreciate the practicalities of aligning the ground and first floor and maximising space. Additionally, I acknowledge that there are no objections from the neighbours to the proposal and that it would not impact the residential amenities of the neighbouring properties. However, these matters do not outweigh the concerns and the conflict with the development plan which I have identified.
Section 06
Conclusion
For the reasons set out and having regard to all other matters raised 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 362No official casework-database value to compare
- Extracted decision date · page 1
- 14 November 2024Matches the official casework database
- Extracted site visit dates
- 1 November 2024 (page 1)
Reference and authority
Official identifiers and the planning authority recorded against this case.
- Case reference
- 3350321
- Application reference
- 24/00426/RVC
- Lead case reference
- Not recorded
- Planning authority
- Spelthorne Borough Council
- Planning authority code
- E07000213
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
- 2. Refused permission to vary or remove a condition(s)
- Appeal reason
- Appeal Against Conditions
- 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
- 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
- No
- 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
- 19 August 2024
- Valid date
- 19 August 2024
- Start date
- 13 September 2024
- Planning authority decision date
- 29 May 2024
- Appeal decision date
- 14 November 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
- 60028
- 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