FLAT FIRST FLOOR 33 BALFERN GROVE, CHISWICK, W4 2JX

1. 29 Oct 2019

   Received by Hounslow

2. 26 Nov 2019

   Decision issued: REFUSED (FULL PLANNING PERMISSION REQUIRED)

3. 26 Aug 2026

   Added to PlanIndex

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

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

• 39 Balfern Grove, Chiswick, London, W4 2JX

  P/2026/0083 Submitted 12 Jan 2026 16m away

  Certificate of lawfulness proposed erection of a rear roof and outrigger extension, including a Juliet balcony and three front roof windows to the house.

  Granted Lawful development Extension Windows or glazing 7 docs

• 43 Balfern Grove, Chiswick, London, W4 2JX

  P/2026/0206 Submitted 22 Jan 2026 25m away

  Erection of a single storey side infill extension and two new front roof windows to the house.

  Granted Householder Extension Windows or glazing 10 docs
  Small domestic

• 44 Balfern Grove, Chiswick, London, W4 2JX

  PA/2026/1274 Submitted 27 Apr 2026 39m away

  Ground floor rear extension 1 metre deep, maximum height 2.8 metres. Single Storey side extension 6 metres deep, maximum height 3.1 metres, 2.67 metres high to the eaves.

  Granted Prior approval Extension 15 docs
  Small domestic

• 24 Balfern Grove, Chiswick, London, W4 2JX

  P/2026/0330 Submitted 3 Feb 2026 40m away

  Certificate of lawfulness for the proposed outrigger roof extension to the house

  Granted Lawful development Extension 11 docs

• 45 CORNWALL GROVE, CHISWICK, LONDON, W4 2LB

  P/2021/2408 Submitted 15 Jun 2021 41m away

  Erection of a single storey rear infill extension and replacement of rear windows.

  Granted Householder Extension Windows or glazing 15 docs
  Small domestic

• 17 Cornwall Grove, Chiswick, London, W4 2LB

  P/2026/0026 Submitted 7 Jan 2026 51m away

  Erection of a single storey rear and infill extension following the demolition of the existing rear and infill extension to the house

  Granted Householder Extension Demolition 10 docs
  Small 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