17 THORNTON AVENUE, CHISWICK, LONDON, W4 1QE

1. 27 May 2021

   Received by Hounslow

2. 10 Jun 2021

   Validated

   Checked as complete and ready for consideration.

3. 4 Aug 2021

   Decision issued: APPROVED

4. 30 Jul 2026

   Added to PlanIndex

Hounslow granted permission on 4 August 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.

This application deals with conditions on an existing permission, supplying the details a condition requires or asking to vary or remove one, without reopening the permission itself. More in our guide to planning application types.

• 22 THORNTON AVENUE, CHISWICK, W4 1QG

  P/2019/3933 Submitted 29 Oct 2019 50 yards away

  Erection of a single storey part side and rear extension, erection of a rear outrigger roof extension with increase in height of the chimney stack, installation of replacement double glazed windows to the house

  Refused Householder Extension Windows or glazing 16 docs
  Small domestic

• 26 Thornton Avenue, Chiswick, London, W4 1QG

  P/2026/0194 Submitted 21 Jan 2026 50 yards away

  Erection of single storey side extension and rear extension. Enlargement of the existing basement. Replacing existing windows. Installation of air source heat pump in rear garden. Installation of new fencing on the front boundary. Conversion of the existing two self contained flats to a single family house.

  Granted Full applications New dwelling Extension +1 15 docs
  Small domestic

• 26 Thornton Avenue,Chiswick,London,W4 1QG

  P/2026/1399 Submitted 8 May 2026 50 yards away

  Certificate of Lawfulness for proposed enlargement of rear roof extension, erection of rear outrigger extension, and installation of two front roof windows.

  Granted Lawful development Extension Windows or glazing 6 docs

• 26 Thornton Avenue,Chiswick,W4 1QG

  P/2026/2358 Submitted 14 Aug 2026 50 yards away

  90% historically approved · decision due ~9 Oct

  Details of Condition 5 (Construction Logistics Plan) submitted pursuant to permission P/2026/0194 dated 09/04/2026 for Erection of single storey side extension and rear extension. Enlargement of the existing basement. Replacing existing windows. Installation of air source heat pump in rear garden. Installation of new fencing on the front boundary. Conversion of the existing two self contained flats to a single family house.

  Awaiting decision Conditions New dwelling Extension +1 3 docs
  Small domestic

• 5 Thornton Avenue, Chiswick, London, W4 1QE

  P/2026/0156 Submitted 19 Jan 2026 50 yards away

  Erection of a single storey rear and side infill extension to the house.

  Granted Householder Extension 9 docs
  Small domestic

• 5 Thornton Avenue, Chiswick, London, W4 1QE

  P/2026/0347 Submitted 3 Feb 2026 50 yards away

  Certificate of lawfulness for the proposed rear roof extension with one front roof window to the house.

  Granted Lawful development Extension Windows or glazing 7 docs

• P/2026/2599 Awaiting decision

  322 High Street, Brentford, TW8 0JS

  Variation of conditions 2 and 3 (hours of opening) to allow 24h in store and deliveries operations of Planning Permission 0607/B/P22 (P/2022/0756) approved 28/04/2022 by Planning Appeal APP/F5540/W/22/3303770 for the variation of condition 3 (hours of opening) of permission 00607/B/P16 approved 16/08/2012 for the variation of condition 1 (hours of opening) of permission 00607/B/P13 approved 08/02/2005 for the variation of condition 5 (opening and closing hours) of planning permission 00607/B/P11 approved 19/09/1996

  Received 14 Sep, published by the council 17 Sep 2026 Conditions
• P/2026/2583 Awaiting decision

  58B Wellesley Road, Chiswick, London, W4 4AD

  Details of Condition 3 (samples of the materials) submitted pursuant to permission P/2018/3008 dated 21/05/2019 for Roof extension and associated alterations

  Received 10 Sep, published by the council 17 Sep 2026 Conditions
• P/2026/2574 Awaiting decision

  17-18 Guernsey Close, Hounslow, TW5 0PQ

  Details of Condition 4 (Hard & Soft landscaping) submitted pursuant to permission P/2026/0243 dated 21/07/2026 for Conversion of existing single family House to 2 residential houses with associated private amenity space, car parking, cycle and refuse storage

  Received 10 Sep, published by the council 17 Sep 2026 Conditions
• P/2026/2578 Awaiting decision

  Dukes Meadows,Dan Mason Drive,The Promenade, Riverside Drive,London,Promenade Approach Road,W4 2SH

  Details of conditions 3 (constructions Logistics Plan (CLP) and 19 (Flood defence Condition Survey) submitted pursuant to planning permission 00503/B/S2 dated 09/07/2021 for the variation of conditions 2 (Approved plans), 14 & 15 (Proposed road improvements & pedestrian paths) & 17 (Travel plan) to allow for changes to height/design of consented football pavilion, re-location of approved football AGP, replacement of one approved football AGP with a hockey AGP, creation of two new netball courts, alterations to football pavilion car park and to hockey car park, to accommodate a 12m coach with increase in car parking spaces from 71 to 78, minor changes to roadway/footpath improvement timescales, & change from Travel Plan being required pre-commencement to pre-occupation of Parcels A, C and D, of planning permission 00503/B/S1 dated 18/04/18 for partial redevelopment of Dukes Meadows playing fields & site of Thames Tradesmen's Clubhouse within wider Dukes Meadows involving: demo of vari... read more

  Received 10 Sep, published by the council 17 Sep 2026 Conditions
• P/2026/1341 Granted

  Land At Prince Regent Road, Hounslow, TW3 1NE

  Variation of condition 2 (approved plans) to allow the change of layouts to all floors of planning permission 00896/B/P1 approved 22/02/2019 for the erection of a six storey building comprising nine flats (two one-bedroom, four two-bedroom and three three-bedroom) and associated car parking, cycle parking and refuse storage.

  Received 5 May, published by the council 26 Jul 2026 Conditions