210 Twickenham Road, Isleworth, TW7 7DR

This site has had 2 applications since 2025: 1 approved, 0 refused.

• P/2026/1106 Awaiting decision

  210 Twickenham Road, Isleworth, TW7 7DR

  Certificate of lawfulness for the continued use as three self contained flats

  Submitted 7 Apr 2026 Lawful development

1. 28 Nov 2025

   Received by Hounslow

2. 17 Mar 2026

   Decision issued: LAWFNOTGRANT

3. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 17 March 2026, 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.

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.

• 210 Twickenham Road, Isleworth, TW7 7DR

  P/2026/1106 Submitted 7 Apr 2026 0m away

  100% historically approved · decision due ~2 Jun

  Certificate of lawfulness for the continued use as three self contained flats

  Awaiting decision Lawful development New dwelling 4 docs

• 2A Cleveland Road, Isleworth, TW7 7EY

  P/2026/0774 Submitted 6 Mar 2026 48m away

  Raising of roof ridge, erection of a rear roof extension with hip to gable conversion to both side of the roof and two front roof windows to the house.

  Granted Householder Extension Loft or dormer +1 9 docs
  Domestic

• 2A Cleveland Road, Isleworth, TW7 7EY

  P/2026/0753 Submitted 5 Mar 2026 48m away

  Certificate of lawfulness for the proposed erection of a single storey rear extension to the house.

  Granted Lawful development Extension 9 docs
  Small domestic

• 186 Twickenham Road, Isleworth, TW7 7DR

  P/2026/2163 Submitted 24 Jul 2026 110m away

  65% historically approved · decision due ~18 Sep

  Change of use of the existing house from Class C3 to a 5 bedroom House in Multiple Occupation (Class C4).

  Awaiting decision Full applications 9 docs

• 20 Chestnut Grove, Isleworth, TW7 7EZ

  P/2026/0319 Submitted 3 Feb 2026 127m away

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

  Granted Lawful development Extension Loft or dormer +1 9 docs

• 18 CHESTNUT GROVE, ISLEWORTH, TW7 7EZ

  PA/2023/0325 Submitted 1 Feb 2023 133m away

  Ground floor rear extension 6.00 metres deep, maximum height 4.00 metres, 3.00 metres high to the eaves

  Granted Prior approval Extension 5 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