Planning appeal decision
Premises Known As 22 Devonshire Road, Chiswick, London, W4 2HD
Planning appeal 3320755 at Premises Known As 22 Devonshire Road, Chiswick, London, W4 2HD (London Borough of Hounslow) was allowed in part (a split decision) on 11 November 2024 by Inspector Brownless E, by written representations. The main issue, as the Inspector framed it: The effect of the extension on the character and appearance of the host building and wider terraced row and whether the appeal scheme would preserve or enhance the character or appearance of the Chiswick High Road Conservation Area.
‘without planning permission, the unauthorised erection of a second single storey rear extension (shown cross-hatched in black on the attached plan)’
- Authority
- London Borough of Hounslow
- Appeal type
- enforcement · Enforcement Notice
- Procedure
- Written Representations
- Development
- other · Householder developments
- Inspector
- Brownless E
- Postcode
- W4 2HD
Main issues, as the Inspector framed them
- The effect of the extension on the character and appearance of the host building and wider terraced row and whether the appeal scheme would preserve or enhance the character or appearance of the Chiswick High Road Conservation Area
What decided it
The extension causes less than substantial but harmful erosion to the character and appearance of the Chiswick High Road Conservation Area through its utilitarian appearance and contrasting modern materials, and the limited public benefits of providing dry storage do not outweigh the identified harm to this heritage asset.
What the Inspector cited
- Development plan policies
- Policy CC1Policy CC2Policy CC4
How the Inspector dealt with each one is set out in the app, in order: the development plan, national policy, housing land supply, other considerations and the planning balance, beside the letter.
See how each was appliedThe decision letter
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With an account
What an account adds to this decision


More decisions in London Borough of Hounslow
The authority’s record since 2016 · every decision in 2024
- Notice upheld28 September 20263340528Fawns Manor House, Hounslow, TW14 8EN
- Notice upheld22 September 2026336674819 Park Drive, London, W3 8ND
- Notice varied and upheld10 September 2026336003656 St. Stephens Road, Hounslow, TW3 2BQ
- Notice varied and upheld1 September 2026336177810 Pontes Avenue, Hounslow, TW3 3FH
- Planning permission granted24 July 202633584817 Tachbrook Road, Feltham, TW14 9PD
The main issues, what decided it, the planning balance and the policies and judgments listed as cited are read from the published letter by Town Planner Pro and are our summary, not the Inspector’s words; the letter itself is the record. Contains public sector information licensed under the Open Government Licence v3.0. Research, not advice.
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