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Planning application

14 SIDMOUTH AVENUE, ISLEWORTH, TW7 4DW

Granted Hounslow P/2021/2208 Lawful Use Certificate

Works: Extension Loft or dormer Windows or glazing

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Certificate of Lawfulness for proposed erection of a rear roof extension incorporating hip to gable conversion and two front roof windows; Alterations to the existing ground floor rear extension comprising of the removal of the existing opens and installation of one new window and French doors to the house

As published by the council, reference P/2021/2208

Application record

Reference
P/2021/2208
Type
Lawful Use Certificate
Status
Granted As published: Decided: GRANTED (FULL PLANNING PERMISSION NOT REQUIRED)
Decision
Granted As published: GRANTED (FULL PLANNING PERMISSION NOT REQUIRED)
Received
3 Jun 2021
Validated
3 Jun 2021
Decided
16 Jul 2021
Ward
Osterley and Spring Grove (Pre May 2022)
Decision by
Delegated
Postcode
TW7 4DW

Timeline

Dates from the published record

  1. 3 Jun 2021

    Received by Hounslow

  2. 16 Jul 2021

    Decision issued: GRANTED (FULL PLANNING PERMISSION NOT REQUIRED)

  3. 26 Jul 2026

    Added to PlanIndex

Documents

Plans, drawings, consultee responses and the officer's report

5 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

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What this grant of permission means

Hounslow granted permission on 16 July 2021, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

About lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 16 Sidmouth Avenue, Isleworth, TW7 4DW

    PA/2026/1784 Submitted 16 Jun 2026 12m away

    Ground floor rear extension 5.00 metres deep, maximum height of 3.20 metres, 3.00 metres high to the eaves

    Granted Prior approval Extension 7 docs

  • 8 Sidmouth Avenue, Isleworth, TW7 4DW

    P/2025/3413 Submitted 13 Nov 2025 37m away

    Certificate of lawfulness for the proposed erection of a rear roof extension with front roof windows to the house.

    Granted Lawful development Extension Windows or glazing 8 docs

  • 7 SIDMOUTH AVENUE, ISLEWORTH, TW7 4DW

    PA/2023/0610 Submitted 23 Feb 2023 45m away

    Ground floor rear extension 4.00 metres deep, maximum height 3.54 metres, 3.00 metres high to the eaves

    Granted Prior approval Extension 5 docs

  • 12 Crawford Close, Isleworth, TW7 4DP

    P/2026/2069 Submitted 15 Jul 2026 59m away

    Non material amendment to allow the increase of the width of the single storey side extension from 0.8m to 1.35m of planning permission P/2024/1156 approved 18/06/2024 for the erection of single storey rear, single storey side and part first floor rear extension to the house

    Refused Amendments Extension 3 docs
    Small domestic

  • 65 Sidmouth Avenue, Isleworth, TW7 4DR

    P/2024/3245 Submitted 27 Sep 2024 69m away

    Certificate of Lawfulness for the proposed change of use from Use Class C3(a) to Use Class C3(b).

    Granted Lawful development 8 docs

  • UNITS 1 AND 2 AND PARTS GARAGE RENNELS WAY, ISLEWORTH, TW7 6NA

    P/2024/0767 Submitted 6 Mar 2024 117m away

    Application for modification to Schedule 1, Paragraph 4 (Clauses 4.1- 4.5) Affordable Housing of S106 legal agreement dated 13th March 2020 in relation to permission 00981/1-2/P1 for proposed mixed use redevelopment comprising, demolition of existing buildings and construction of two buildings up to seven storeys to provide 650 square metres (Use Class B1) of commercial floor space, and 53 dwellings (1 studio, 24 one-bedroom, 22 two-bedroom, 5 three-bedroom and 1 four-bedroom) with associated access and highway works, amenity areas, cycle and disabled car parking and refuse/recycling stores.

    Refused Conditions Demolition 7 docs
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In Hounslow

  • P/2026/2118 Granted

    54 Amhurst Gardens, Isleworth, TW7 6AJ

    Certificate of lawfulness for the proposed erection of a rear roof extension with front roof windows.

    Received 20 Jul, published by the council 26 Jul 2026 Lawful development
  • P/2026/2580 Awaiting decision

    50B Paxton Road, Chiswick, London, W4 2QX

    Certificate of lawfulness for the existing use of a first floor self contained flat.

    Received 10 Sep, published by the council 17 Sep 2026 Lawful development
  • P/2026/2332 Granted

    43 Dawes Avenue, Isleworth, TW7 7JS

    Certificate of Lawfulness for the proposed hip to gable conversion, front roof lights and erection of a rear roof extension to the house.

    Received 12 Aug, published by the council 16 Aug 2026 Lawful development
  • P/2026/2089 Granted

    18 Central Avenue, Hounslow, TW3 2QH

    Certificate of lawfulness for the existing use of the rear extension as a self contained flat.

    Received 17 Jul, published by the council 26 Jul 2026 Lawful development
  • P/2026/2566 Awaiting decision

    109 Wood Lane, Isleworth, TW7 5EG

    Certificate of lawfulness for the proposed erection of a rear roof extension with hip to gable conversion with roof windows to the front and Juliet balcony to the rear of the house.

    Received 9 Sep, published by the council 17 Sep 2026 Lawful development