12 Wellesley Road, Chiswick, London, W4 4BL

1. 30 Oct 2024

   Received by Hounslow

2. 17 Dec 2024

   Decision issued: GRANT

3. 2 Sep 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 12 WELLESLEY ROAD, CHISWICK, LONDON, W4 4BL

  P/2021/2004 Submitted 20 May 2021 0m away

  Erection of a basement floor with two front lightwells. Demolition of existing part ground floor and first floor rear extensions and erection of full length single storey rear and part first floor rear extensions. One rooflight to the side roof elevation.

  Granted Householder Extension Loft or dormer +1 15 docs
  Small domestic

• Branden Lodge, Burlington Road, Chiswick, London,W4 4BE

  P/2026/0593 Submitted 19 Feb 2026 46m away

  Works to tree in a Conservation Area. Acacia (T2). Fell to ground level

  Granted Trees 4 docs

• Branden Lodge, Burlington Road,Chiswick,London,W4 4BE

  P/2026/0594 Submitted 19 Feb 2026 46m away

  Works to trees in a Conservation Area. Elder (T7). Fell to ground level. Elder (T8). Fell to ground level. Cypress (G1) Fell/Remove 2 x heavily leaning components on the north side of group.

  Granted Trees 4 docs

• 29 BURLINGTON ROAD, CHISWICK, LONDON, W4 4BQ

  P/2019/3815 Submitted 22 Oct 2019 47m away

  Variation of condition 2 (approved plans) to allow the addition of a railing to the front low boundary wall of planning permission 00177/29/P8 approved 06/02/2018 for erection of a part single part two storey replacement rear extension with roof lanterns, enlargement of existing basement with two front, one side and two rear light wells, and side access stairwell, erection of two rear roof extensions with five roof lights, additional rear and side windows and side doors to the house

  Granted Full applications Extension Loft or dormer +1 5 docs
  Small domestic

• 36 Burlington Road, Chiswick, London, W4 4BE

  P/2026/1466 Submitted 15 May 2026 51m away

  Erection of a first floor rear extension and installation of a replacement side window and rear glazed sliding doors to the house's existing single storey rear extension.

  Granted Householder Extension Windows or glazing 10 docs
  Small domestic

• 36 Burlington Road, Chiswick, London, W4 4BE

  P/2025/2838 Submitted 22 Sep 2025 51m away

  Works to tree within TPO 155. 1 X T1 Yew reduce height by approximately 1.5-2 metres, reduce sides by approximately 0.50-1 metre and lift low branches over the gate to create 2 metre clearance from ground level

  Granted Trees 4 docs

• P/2026/2033 Granted

  3 Benedict Drive, Feltham, TW14 8JH

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

  8 Jul 2026 Lawful development
• P/2026/2027 Granted

  115 Northumberland Crescent, Feltham, TW14 9SP

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

  8 Jul 2026 Lawful development
• P/2026/2009 Granted

  3 Brainton Avenue, Feltham, TW14 0AZ

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

  7 Jul 2026 Lawful development
• P/2026/2014 Granted

  82 Sussex Avenue, Isleworth, TW7 6LB

  Certificate of lawfulness for the proposed erection of a rear roof extension, a porch to the front of the house, and a front roof window.

  7 Jul 2026 Lawful development
• P/2026/2473 Awaiting decision

  16 Somerset Waye, Hounslow, TW5 9HG

  Certificate of lawfulness for the proposed erection of a rear roof extension with two roof windows to the front and alterations to the existing side roof from flat roof to pitched roof.

  1 Sep 2026 Lawful development