Planning appeal decision
41 Acacia Avenue, Hayes, UB3 2ND
Planning appeal 3270511 at 41 Acacia Avenue, Hayes, UB3 2ND (London Borough of Hillingdon) was dismissed on 1 October 2021 by Inspector Allan J, by written representations. The main issue, as the Inspector framed it: The effect of the proposed rear dormer on the character and appearance of 41 Acacia Avenue and the wider area, including the Hayes Village Conservation Area.
Add a rear dormer to the existing loft conversion and two roof windows to front slope roof
- Authority
- London Borough of Hillingdon
- Appeal type
- householder · Householder (HAS)
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Allan J
- Postcode
- UB3 2ND
Main issues, as the Inspector framed them
- The effect of the proposed rear dormer on the character and appearance of 41 Acacia Avenue and the wider area, including the Hayes Village Conservation Area
What decided it
The dormer's excessive size and bulk would cause less than substantial harm to the character and appearance of the conservation area with no offsetting public benefits.
The personal benefit of improved living space within the loft did not outweigh the identified harm to character and appearance and the conservation area.
What the Inspector cited
- Development plan policies
- Policy DMHD 1Policy BE1Policy DMHB 11Policy HE1Policy DMHB 4Policy HC1
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 Hillingdon
The authority’s record since 2016 · every decision in 2021
- Dismissed27 October 202660153104 Albany Close, Ickenham, UB10 8QW
- Dismissed27 October 2026600985618-20 Wilmar Close, Hayes, UB4 8ET
- Dismissed21 October 2026601178225 Stirling Road, Hayes, UB3 3AH
- Dismissed19 October 20266011268364 Victoria Road, Ruislip, HA4 0ET
- Allowed6 October 2026601385888 Stormount Drive, Hayes, UB3 1RH
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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