Appeal 3346374
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
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 a single storey rear extension following the demolition of the existing conservatory. Conversion of the existing garage into a habitable space with a front extension and replacement of garage door with window.
Section 02
Decision
The appeal is dismissed.
Section 03
Main Issue
The main issue is the effect of the proposal on the character and appearance of the host property and the locality.
Section 04
Character and appearance
The appeal property is a three-storey semi-detached home set a little back and off to the side of the end of a cul de sac. The locality is one of established residential character and the arrangement of 1990’s Palladian style villas results in an area of very pleasing appearance. The proposal is as described above.
The site lies within the [address] Conservation Area (CA). There is a duty imposed by Section 72(1) of the Planning (Listed Buildings and Conservation Areas) Act 1990 requiring decision makers to have special regard to the desirability of preserving or enhancing the character or appearance of a Conservation Area. The Council’s Local Plan (LP) Policy CC4 and the London Plan’s (LoP) Policy (HC1) reflect this. [name] CC1 and CC2 and LoP Policy D4 are also all relevant to the case. Taken together and amongst other matters they seek to secure development which would display good quality design, complement the original building and its context and reflect local distinctiveness.
The Council’s concerns rest with the proposed front extension and replacement of garage door with a window. It concludes that through design, position and appearance there would be aesthetic harm the appeal property, the pair of semi-detached houses and the wider scene. The Council considers that the plans would not reflect the locality and would be harmful to the CA. The Appellant puts the case that there would be no immediate or wider harm, respectful design is proposed, the development would be subordinate, and looking more widely would have very limited visibility in this grouping at the end of the cul de sac.
For my part I find the frontage symmetry of dwellings, and of pairs in particular, to be so important to the qualities and characteristics of this area of the neighbourhood that I would be unable to condone change as proposed. The appeal scheme, notwithstanding some subtlety, would unbalance the pair and this would be seen more widely. The proposal would be jarring on the eye and would very obviously be an unfortunate post original development alteration not for the greater visual good.
Given the foregoing I conclude that the change proposed would be contrary to the aims of Section 72(1) and would conflict with the development plan polices which I cite in paragraph 4 above.
Section 05
Other matters
I do understand the Appellant’s wish for improved accommodation. I would agree that the scheme would not directly detract from residential amenity for neighbours. I can see that thought has been given to the use of matching materials and window style.
An appeal decision (APP/F5540/D/17/3180814) at no. 15 was drawn to my attention. This removed a garage door but the difference there was it is a mid-terrace home and the Inspector found that the planned change would introduce more symmetry. The two other examples drawn to my attention are also not comparable in that garage doors remained albeit they were changed in form. In any event I must determine this case on its own merits and my reasoning is set out above.
I have carefully considered all the points raised by the Appellant but these matters do not outweigh the concerns which I have in relation to the main issue identified above.
I confirm that policies in the National Planning Policy Framework (the Framework) have been considered. Key objectives of the Framework are to protect and enhance the qualities of the built environment as well as to safeguard heritage assets; development plan policies which I cite mirror these. The Framework underlines that great weight should be given to a heritage asset’s conservation. The appeal proposal would lead to less than substantial harm to the significance of the designated heritage asset however what public benefits there would be would not outweigh this harm. Furthermore, there are no other benefits, including to the Appellant, which to my mind would be of a scale to outweigh the harm to the Conservation Area which I have identified. 2
Section 06
Overall conclusion
For the reasons given above I conclude that the appeal proposal would have unacceptable adverse effects on the character and appearance of the host property and the locality. Accordingly, 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 352No official casework-database value to compare
- Extracted decision date · page 1
- 7 November 2024Matches the official casework database
- Extracted site visit dates
- 26 October 2024 (page 1)
Reference and authority
Official identifiers and the planning authority recorded against this case.
- Case reference
- 3346374
- Application reference
- 01615/10/P3
- Lead case reference
- Not recorded
- Planning authority
- London Borough of Hounslow
- Planning authority code
- E09000018
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
- 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
- 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
- 14 June 2024
- Valid date
- 19 June 2024
- Start date
- 8 July 2024
- Planning authority decision date
- 22 March 2024
- Appeal decision date
- 7 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
- 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
- 59658
- 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