Appeal 3271473
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
the erection of single storey side/rear extension.
Section 02
Decision
The appeal is dismissed.
Section 03
Procedural matter
At the site visit, I saw that there is a ground floor extension in place at the side and rear of the main house, which is not shown on some of the plans or in the photographs provided. It differs in size, position and roof form to the proposal that is before me. For the avoidance of doubt, I have assessed the proposed development as it is shown on the submitted drawings because it was on that basis that the Council withheld planning permission.
Section 04
Main issue
The main issue are the effect of the proposed development on the character and appearance of the host building and the local area.
Section 05
Reasons
The appeal property is a 2-storey end terrace house that has an outward projecting entrance porch with a mono pitched roof at the side. No 18 occupies a prominent corner plot on [address] along which residential terraces of similar style and age predominate. As the terrace to which the appeal dwelling belongs is perpendicular to the road, its side elevation and porch are prominent features in the local street scene.
The proposal is a ground floor extension at the side and rear of the main house with materials to match those of the existing building. Along the highway frontage of the site to [address] would be a lengthy blank wall right up to and along the back edge of the footway. In this position, the proposed extension would be a conspicuous feature in views from the road.
When seen from the highway on the immediate approach to the site, the proposal would draw the eye as the flat roof of the new extension would relate awkwardly to the mono-pitched roof of the porch to which it would attach and the dual pitched roof of the main house. It would appear as a large ‘box like’ addition that would be out of proportion with the rest of the appeal building. With no set back from the site’s boundary, the proposed arrangement would also be out of keeping with the generally more spacious pattern of existing development on corner plots in the local area where the 2-storey end terrace house is noticeably set back from the road even though in some cases buildings are close to the adjacent highway.
The Council’s Supplementary Planning Document, Design of [name] and New Residential Development (SPD) advises that a pitched roof will be required for single storey extensions that are prominent from outside the site. It also states that the design of any pitched roof should follow where possible the style and pitch of the host building’s roof. The proposal would be at odds with this advice.
The appellant states that the proposal has been designed to match the side and rear addition at [address], which is situated broadly opposite the site. Few background details of this existing extension have been provided and so I cannot be certain that the circumstances relating to it are the same or very similar to those of the proposal. The Council, for instance, states that the construction of the extension at No 16 predates the adoption of the SPD. From what I saw, No 16 demonstrates that the introduction of new built form in a prominent position when seen from the road can have a significant effect on the character and appearance of the host building and the local area of which it forms part. The existence of the extension at No 16 is insufficient reason to allow what would be an unacceptable form of development.
On the main issue, I therefore conclude that the proposed development would cause significant harm to the character and appearance of the host building and the local area. As such, it is contrary to Policy EN1 of the Council’s Core Strategy and Policies Development Plan Document and the SPD. This policy and guidance require that new development achieves a high standard of design and layout and positively contributes to the street scene and the character of the local area.
Section 06
Conclusion
For the reasons set out above and having regard to all other matters raised, including the absence of objections from others, 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 287No official casework-database value to compare
- Extracted decision date · page 1
- 15 September 2021Matches the official casework database
- Extracted site visit dates
- 12 August 2021 (page 1)
Reference and authority
Official identifiers and the planning authority recorded against this case.
- Case reference
- 3271473
- Application reference
- 21/00067/HOU
- 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
- 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
- 17 m²
- Number of residences
- 0
- Site in Green Belt
- No
- 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
- Dismissed
- Decision category
- Dismissed
- Received date
- 20 March 2021
- Valid date
- 20 March 2021
- Start date
- 12 May 2021
- Planning authority decision date
- 12 March 2021
- Appeal decision date
- 15 September 2021
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
- No
- 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
- 3201
- First seen
- 20 August 2026 at 14:24
- Last seen
- 20 August 2026 at 16:25
- Removed from release
- Not recorded
- Record created
- 20 August 2026 at 14:24
- Record updated
- 24 August 2026 at 16:21