4 The Mews, Bridge Road, Twickenham, Middlesex, TW1 1RF

Planning appeal 6002645 at 4 The Mews, Bridge Road, Twickenham, Middlesex, TW1 1RF (Richmond Upon Thames London Borough Council) was dismissed on 27 April 2026 by Inspector Jones GP, by written representations. The main issue, as the Inspector framed it: Whether the proposed development would serve to preserve or enhance the character or appearance of the Conservation Area.

construction of mansard and 2 no. dormer windows to front of property; change in entrance door location and replacement of existing front door on ground floor; replacement of existing front door; proposed sash window to first floor; proposed opaque and fixed timber sash windows to rear elevation on first and second floors; replacement of all existing windows with like-for-like timber sash windows; internal refurbishment & 2 no. flat-profile sky lights to rear of new mansard

Authority: Richmond Upon Thames London Borough Council
Appeal type: minor · Planning Appeal
Procedure: Written Representations
Development: residential · Minor offices/R&D/light industry
Inspector: Jones GP
Postcode: TW1 1RF

Main issues, as the Inspector framed them

Whether the proposed development would serve to preserve or enhance the character or appearance of the Conservation Area

What decided it

The incongruous design of the proposed mansard roof, which would be clearly visible from Bridge Road and would contrast sharply with the unified design of existing mansards, causing visual harm to the Conservation Area with no identified public benefits to justify the harm.

What the Inspector cited

Development plan policies: LP policy 29

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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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.