Planning appeal decision
12 Powell Close, Edgware, HA8 7QU
Planning appeal 3315066 at 12 Powell Close, Edgware, HA8 7QU (London Borough of Harrow) was dismissed on 20 April 2023 by Inspector Sedgwick P, by written representations. The main issue, as the Inspector framed it: Whether the proposed development would preserve or enhance the character or appearance of the Canons Park Conservation Area.
roof alterations to create habitable roof space (bedroom), a side dormer, first floor rear extension, rooflights on side roof slope and external alterations to dwellinghouse
- Authority
- London Borough of Harrow
- Appeal type
- householder · Householder (HAS)
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Sedgwick P
- Postcode
- HA8 7QU
Main issues, as the Inspector framed them
- Whether the proposed development would preserve or enhance the character or appearance of the Canons Park Conservation Area
What decided it
The harm to the appearance of the building and Canons Park Conservation Area from the roof extension, removal of the chimney, and design of the rear extension outweighed the modest public benefits of short-term construction employment.
What the Inspector cited
- Development plan policies
- Policy D3Policy HC1Core Policy CS1Policy DM1Policy DM7
- National Planning Policy Framework
- Paragraph 202
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 Harrow
The authority’s record since 2016 · every decision in 2023
- Dismissed27 October 20266006380Thrale Farm, 1 Oxhey Lane, Pinner, HA3 6SX
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- 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.
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