®Planning appeal decision
51 Ickenham Road, Ruislip, HA4 7BZ
Planning appeal 3336736 at 51 Ickenham Road, Ruislip, HA4 7BZ (London Borough of Hillingdon) was allowed on 26 February 2026 by Inspector Boffin D, by written representations. The main issue, as the Inspector framed it: Appeal A: whether the Council's decision to refuse to grant a lawful development certificate is well-founded.
first floor side/rear extension
- Authority
- London Borough of Hillingdon
- Appeal type
- ldc · Lawful Development Certificate
- Procedure
- Written Representations
- Development
- residential · Change of use
- Inspector
- Boffin D
- Postcode
- HA4 7BZ
Main issues, as the Inspector framed them
- Appeal A: whether the Council's decision to refuse to grant a lawful development certificate is well-founded
- Appeal B: the effect of the proposal on the character and appearance of the host dwelling and the surrounding area taking into account its location within the Ruislip Village Conservation Area
What decided it
Appeal A: The four-year immunity period under section 171B of the 1990 Act was satisfied as the change of use occurred before 27 June 2018 and continued without significant interruption, and the appellant's conduct did not amount to deliberate concealment engaging the Welwyn Hatfield principle. Appeal B: The significant increase in bulk and massing of the crown roof would be visually prominent and would harm the character and appearance of the conservation area, with limited public benefits insufficient to outweigh that harm.
What the Inspector cited
- Development plan policies
- Policy BE1 of the Hillingdon Local Plan: Part One – Strategic PoliciesPolicy DMHD 1 of the Hillingdon Local Plan: Part Two – Development Management PoliciesPolicy DMHB 4 of the Hillingdon Local Plan: Part Two – Development Management PoliciesPolicy DMHB 11 of the Hillingdon Local Plan: Part Two – Development Management PoliciesPolicy HC1 of the London Plan
- National Planning Policy Framework
- Paragraph 215
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 2026
- 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.