34 CORNEY ROAD, CHISWICK, W4 2RA

1. 22 Feb 2023

   Received by Hounslow

2. 18 Apr 2023

   Decision issued: GRANTED (FULL PLANNING PERMISSION NOT REQUIRED)

3. 23 Aug 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

• 26 Grantham Road, Chiswick, London, W4 2RS

  P/2026/2348 Submitted 13 Aug 2026 47m away

  99% historically approved · decision due ~8 Oct

  Works with a tree in a conservation area T2 Large Sycamore tree reduce height by 2.5 metre and lateral spread by 1.5 metre.

  Awaiting decision Trees 2 docs

• 24 Grantham Road,Chiswick,W4 2RS

  P/2026/2349 Submitted 13 Aug 2026 50m away

  99% historically approved · decision due ~8 Oct

  Works to trees in a conservation area ;T1: Ash to reduce height by 2.5 metre & Lateral spread by 1.5 metre.

  Awaiting decision Trees 2 docs

• 18 GRANTHAM ROAD, CHISWICK, LONDON, W4 2RS

  P/2023/0728 Submitted 7 Mar 2023 62m away

  Erection of a single storey rear and a side infill extension, also rear roof extension with front & rear roof windows to the house

  Withdrawn Householder Extension Windows or glazing 12 docs
  Small domestic

• 8 CORNEY ROAD, CHISWICK, LONDON, W4 2RA

  P/2019/4063 Submitted 11 Nov 2019 64m away

  Erection of a rear roof extension with Juliette balcony and two front roof windows to the house

  Granted Householder Extension Windows or glazing 7 docs
  Domestic

• Dartmouth House, 1A Dartmouth Place, Chiswick, London, W4 2RH

  P/2025/3534 Submitted 25 Nov 2025 71m away

  Alterations to an existing detached garage and outbuilding. Replacement crit-tall doors to replace existing up-and-over, installation of side entrance and window on north elevation and four rooflights. Installation of air source heat pump.

  Granted Householder Loft or dormer Windows or glazing 24 docs
  Small domestic

• Dartmouth House, 1A Dartmouth Place, Chiswick, London, W4 2RH

  P/2025/3214 Submitted 23 Oct 2025 71m away

  Replacement of various existing UPVC and aluminium windows and doors with double-glazed aluminium Crittall-style units, including changes to windows to doors on the ground floor with full-height windows, and installation of a roof lantern to the south entrance flat roof.

  Granted Householder Windows or glazing 39 docs
  Domestic

• 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