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Planning appeal decision

Allowed19 January 20266001088

40 Greenacres Avenue, Ickenham, Hillingdon, UB10 8HH

Planning appeal 6001088 at 40 Greenacres Avenue, Ickenham, Hillingdon, UB10 8HH (London Borough of Hillingdon) was allowed on 19 January 2026 by Inspector Gardner L, by written representations. The main issue, as the Inspector framed it: whether or not the proposed annexe building would comprise a separate self-contained residential unit.

rear garden annexe building

Authority
London Borough of Hillingdon
Appeal type
householder · Householder (HAS)
Procedure
Written Representations
Development
residential · Householder developments
Inspector
Gardner L
Postcode
UB10 8HH

Main issues, as the Inspector framed them

  • whether or not the proposed annexe building would comprise a separate self-contained residential unit
  • the effect of the proposal on the character and appearance of the area
  • the effect of the proposal on the living conditions of neighbouring occupiers, with particular regard to noise and disturbance

What decided it

The functional and spatial connection between the proposed annexe and main dwellinghouse, combined with the intended use for a family member assisting with care needs and shared services, established that the building would not operate as a separate residential unit despite containing primary living facilities.

What the Inspector cited

Development plan policies
Policy DMHD 2Policy DMHB 11Policy DMHB 12Policy D4Policy DMH 6Policy DMHB 16Policy DMHB 18Policy D6Policy D1Policy D3

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 2026

  1. Dismissed27 October 20266009856
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  2. Dismissed18 September 20266011516
    73 High Street, Ruislip, HA4 8JB
  3. Dismissed15 September 20266010520
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  4. Dismissed23 July 20266008246
    21 Green Lane, Hillingdon, Uxbridge, UB8 3ED
  5. Dismissed23 July 20266004329
    14 Willow Tree Lane, Hayes, UB4 9BB

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.