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Planning appeal decision

Dismissed6 November 20253366324

5 Crowland Avenue, Hayes, UB3 4JN

Planning appeal 3366324 at 5 Crowland Avenue, Hayes, UB3 4JN (London Borough of Hillingdon) was dismissed on 6 November 2025 by Inspector Manley N, by written representations. The main issue, as the Inspector framed it: The effect of the proposal on the character and appearance of the host property and the wider area.

an “Erection of a single storey rear extension, and a first floor rear extension

Authority
London Borough of Hillingdon
Appeal type
householder · Householder (HAS)
Procedure
Written Representations
Development
residential · Householder developments
Inspector
Manley N
Postcode
UB3 4JN

Main issues, as the Inspector framed them

  • The effect of the proposal on the character and appearance of the host property and the wider area

What decided it

The cumulative scale and massing of the proposed extensions, when combined with existing alterations, would result in a visually dominant form that would unacceptably harm the character and appearance of the host property and the wider street scene, conflicting with local plan policies requiring development to be subordinate and respect the design of the original house.

What the Inspector cited

Development plan policies
Policy BE1 of the Hillingdon Local Plan: Part One – Strategic Policies (Adopted 2012)Policy DMHD1 of the Hillingdon Local Plan: Part Two – Development Management Policies (Adopted 2020)Policy DMHB11 of the Hillingdon Local Plan: Part Two – Development Management Policies (Adopted 2020)Policy DMHB12 of the Hillingdon Local Plan: Part Two – Development Management Policies (Adopted 2020)

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 applied

The decision letter

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More decisions in London Borough of Hillingdon

The authority’s record since 2016 · every decision in 2025

  1. Dismissed27 October 20266015310
    4 Albany Close, Ickenham, UB10 8QW
  2. Dismissed27 October 20266009856
    18-20 Wilmar Close, Hayes, UB4 8ET
  3. Dismissed21 October 20266011782
    25 Stirling Road, Hayes, UB3 3AH
  4. Dismissed19 October 20266011268
    364 Victoria Road, Ruislip, HA4 0ET
  5. Allowed6 October 20266013858
    88 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.

In the app this decision sits on the map beside every appeal around it, with its letter to read and the main issues, policies and judgments cited picked out.