Planning appeal decision
5 Abercorn Mews, Richmond, TW10 6BY
Planning appeal 3260053 at 5 Abercorn Mews, Richmond, TW10 6BY (Richmond Upon Thames London Borough Council) was dismissed on 28 June 2021 by Inspector Pipe C, by written representations. The main issue, as the Inspector framed it: the effect of the proposed development on the character and appearance of the St Matthias Conservation Area.
replacement French door to rear dormer rear extension and installation of a glazed balcony screen to roof of outrigger to facilitate use of roof to outrigger as roof terraced
- Appeal type
- householder · Householder (HAS)
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Pipe C
- Postcode
- TW10 6BY
Main issues, as the Inspector framed them
- the effect of the proposed development on the character and appearance of the St Matthias Conservation Area
- the living conditions of the occupiers of neighbouring properties
What decided it
The glazed balcony screen would be a discordant feature harmful to the conservation area's character and the development would significantly harm neighbours' living conditions through unacceptable overlooking.
What the Inspector cited
- Development plan policies
- Policy LP1Policy LP3Policy LP8London Borough of Richmond Upon Thames Local Plan Supplementary Planning Document, House Extensions and External Alterations (2015)
- National Planning Policy Framework
- Paragraph 192
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
Town Planner Pro holds this letter. The Appeals plan opens it and every other letter we hold, all of them searchable, with the main issues and what decided each case picked out. We do not show letters on the free site because they carry people’s names and addresses.
With an account
What an account adds to this decision


More decisions in Richmond upon Thames
The authority’s record since 2016 · every decision in 2021
- Dismissed28 October 2026601587988 Colne Road, Twickenham, TW2 6QE
- Dismissed28 October 2026601583664 First Avenue, Mortlake, London, SW14 8SR
- Dismissed26 October 2026601187461-63 Petersham Road, Richmond Upon Thames, TW10 6UT
- Dismissed20 October 20266010388163 Garrick House, High Street, Hampton Hill, TW12 1BZ
- Dismissed19 October 20266013760Pavement Os, 53-57 High Street, Whitton, TW2 7LB
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.
®