Planning appeal decision
27 Derwent Avenue, Pinner, HA5 4QH
Planning appeal 3301234 at 27 Derwent Avenue, Pinner, HA5 4QH (London Borough of Harrow) was allowed on 25 May 2023 by Inspector Crossen S, by written representations. The main issue, as the Inspector framed it: the effect of the proposed development on the character and appearance of the host building and the surrounding area.
the removal of existing roof, first floor extension including front and rear dormers, part two storey, part single storey side extension, facade changes and internal alterations
- Authority
- London Borough of Harrow
- Appeal type
- minor · Planning Appeal
- Procedure
- Written Representations
- Development
- residential · Other minor developments
- Inspector
- Crossen S
- Postcode
- HA5 4QH
Main issues, as the Inspector framed them
- the effect of the proposed development on the character and appearance of the host building and the surrounding area
- the effect of the proposed development on the living conditions of the occupants of No. 29 Derwent Avenue, with particular reference to outlook, sunlight and daylight
What decided it
The proposed development accords with the SPD's 45-degree line test for protecting neighbouring windows and would not appear incongruous or dominant in a street where most houses have already been significantly extended with varied roof designs.
What the Inspector cited
- Development plan policies
- Policy CS1 of the Harrow Council Core Strategy February 2012Policy DM1 of the Harrow Council Development Management PoliciesPolicy DM2 of the Harrow Council Development Management PoliciesPolicy D3 of The London Plan: The Spatial Development Strategy for Greater London March 2021
- National Planning Policy Framework
- Paragraph 54
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 London Borough of Harrow
The authority’s record since 2016 · every decision in 2023
- Dismissed27 October 20266006380Thrale Farm, 1 Oxhey Lane, Pinner, HA3 6SX
- Dismissed22 October 202660139622 Whitefriars Avenue,, Harrow Weald, HA3 5RN
- Dismissed19 October 2026601133652 Durley Avenue, Pinner, HA5 1JH
- Dismissed16 October 2026601122330 Kenmore Avenue, Kenton, HA3 8PQ
- Dismissed16 October 2026600828424 Uxbridge Road, Stanmore, Harrow, HA7 3LG
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.
®