26 Cornwall Grove, Chiswick, London, W4 2LB

This site has had 2 applications since 2026: 1 approved, 1 refused.

• P/2026/1686 Granted

  26 Cornwall Grove, Chiswick, London, W4 2LB

  Erection of a single storey part side and rear extension to the ground floor flat.

  Decided 17 Jul 2026 Full applications

1. 31 Mar 2026

   Received by Hounslow

2. 18 May 2026

   Decision issued: REFUSED

3. 12 Aug 2026

   Added to PlanIndex

Hounslow refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

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

  P/2026/1686 Submitted 8 Jun 2026 50 yards away

  Erection of a single storey part side and rear extension to the ground floor flat.

  Granted Full applications Extension 16 docs
  Small domestic

• Flat Ground Floor, 28 Cornwall Grove, Chiswick, London, W4 2LB

  P/2026/0554 Submitted 16 Feb 2026 50 yards away

  Erection of a single storey rear extension to the ground floor flat.

  Granted Full applications Extension 10 docs
  Small domestic

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

  P/2026/0026 Submitted 7 Jan 2026 50 yards 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

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

  P/2021/2408 Submitted 15 Jun 2021 50 yards away

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

  Granted Householder Extension Windows or glazing 15 docs
  Small domestic

• 25 BALFERN GROVE, CHISWICK, W4 2JX

  P/2023/1024 Submitted 30 Mar 2023 50 yards away

  Certificate of Lawfulness for the proposed development of a rear roof dormer extension and installation of two front roof lights to the house.

  Granted Lawful development Extension Loft or dormer 7 docs

• 25 BALFERN GROVE, CHISWICK, W4 2JX

  PA/2023/1063 Submitted 3 Apr 2023 50 yards away

  Ground floor rear extension 5.6 metres deep, maximum height of 3.05 metres, 3.00 metres high to the eaves.

  Granted Prior approval Extension 5 docs

• P/2026/1916 Granted

  Police Station, 34 Hanworth Road, Feltham, TW13 5BD

  Replacement of existing vehicular and pedestrian gate with associated new control pedestals, new fencing and posts.

  Received 29 Jun, published by the council 26 Jul 2026 Full applications
• P/2026/2212 Granted

  190 Jersey Road, Isleworth, TW7 4QN

  Change of use of the existing House in Multiple Occupation (Use Class C4) occupied by up to six persons to a large House in Multiple Occupation (Sui Generis) occupied by up to eight persons, with no internal changes.

  Received 29 Jul, published by the council 5 Aug 2026 Full applications
• P/2026/1676 Granted

  Clayponds Open Space, Clayponds Gardens, London, W5 4RQ

  Replacement of ball court (MUGA) to a football foundation play zone, installation of new fencing, lighting and associated equipment

  Received 4 Jun, published by the council 26 Jul 2026 Full applications
• P/2026/2806 Awaiting decision

  COST CHOICE, UNIT 5, HIGH STREET, BRENTFORD,TW8 8LB

  Installation of ATM machine to the shopfront..

  Received 30 Sep, published by the council 6 Oct 2026 Full applications
• P/2026/1648 Refused

  Heathrow House, 785 Bath Road, Hounslow, TW5 9AT

  Change of use from 20 residential apartments (14 x one-bedroom and 6 x two-bedroom) to serviced accommodation across three floors 2,3 and 4 of the building.

  Received 3 Jun, published by the council 26 Jul 2026 Full applications