11 Borough Road, Isleworth, TW7 5DY

Planning appeal 3370095 at 11 Borough Road, Isleworth, TW7 5DY (London Borough of Hounslow) was dismissed on 7 January 2026 by Inspector Bradford F, by written representations. The main issue, as the Inspector framed it: The effect of the proposed porch and front/side extension on the character and appearance of the existing building and surrounding area, including whether it would preserve or enhance the character or appearance of the Spring Grove Conservation Area.

Demolish existing front porch Erection of a front porch and conversion of the front garage into a habitable room, including the replacement of the garage door with a window Erection of single storey rear and part side extension to dwelling house ”

Authority: London Borough of Hounslow
Appeal type: householder · Householder (HAS)
Procedure: Written Representations
Development: residential · Householder developments
Inspector: Bradford F
Postcode: TW7 5DY

Main issues, as the Inspector framed them

The effect of the proposed porch and front/side extension on the character and appearance of the existing building and surrounding area, including whether it would preserve or enhance the character or appearance of the Spring Grove Conservation Area

What decided it

The proposed front extension and porch would undermine the architectural uniformity and heritage character of the Conservation Area by diminishing distinctive original features, and the modest public benefits would not outweigh the great weight required to be given to conservation of the heritage asset.

What the Inspector cited

Development plan policies: CC1CC2CC4SC7
National Planning Policy Framework: Paragraph 11

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.

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The decision letter

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More decisions in London Borough of Hounslow

The authority’s record since 2016 · every decision in 2026

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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.