21 Oaklands Avenue, Isleworth, TW7 5PX

Planning appeal 3353128 at 21 Oaklands Avenue, Isleworth, TW7 5PX (London Borough of Hounslow) was allowed in part (a split decision) on 20 December 2024 by Inspector Benson E, by written representations. The main issue, as the Inspector framed it: The effect of the appeal proposal on the living conditions of the adjoining occupiers at No 22 Oaklands Avenue in terms of loss of light, outlook and sense of enclosure.

single storey rear and side extension and loft conversion

Authority: London Borough of Hounslow
Appeal type: householder · Householder (HAS)
Procedure: Written Representations
Development: residential · Householder developments
Inspector: Benson E
Postcode: TW7 5PX

Main issues, as the Inspector framed them

The effect of the appeal proposal on the living conditions of the adjoining occupiers at No 22 Oaklands Avenue in terms of loss of light, outlook and sense of enclosure
Its effect on the character and appearance of the host property and the surrounding area, including whether it would preserve or enhance the character or appearance of the Osterley Park Conservation Area and its effect on the significance of the designated heritage asset

What decided it

The single storey extension's excessive depth of 4.5 metres along the party boundary would unacceptably harm neighbouring amenity through loss of outlook and overbearing effect, conflicting with local policy and SPD guidance, whereas the roof alterations would preserve the Conservation Area character and were therefore severable and approvable.

What the Inspector cited

Development plan policies: Policy CC2 (Urban Design and Architecture)Policy SC7 (Residential Extensions and Alterations)Policy CC1 (Context and Character)Policy CC4 (Heritage)

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.

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The decision letter

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More decisions in London Borough of Hounslow

The authority’s record since 2016 · every decision in 2024

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Allowed21 October 20266013999
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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.