Lakeside Mental Health Unit, West Middlesex Hospital, Twickenham Road, Isleworth, TW7 6AF

1. 14 Jan 2026

   Received by Hounslow

2. 26 Feb 2026

   Validated

   Checked as complete and ready for consideration.

3. 23 Apr 2026

   Decision issued: APPROVED

4. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 23 April 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 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.

• West Middlesex Hospital, Lakeside Mental Health Unit,Twickenham Road,Isleworth,TW7 6AF

  PA/2024/3048 Submitted 11 Sep 2024 50 yards away

  Prior Approval for the installation of 153.51kWp solar panels on the roof.

  Granted Outline 6 docs

• West Middlesex Hospital, Lakeside Mental Health Unit, Twickenham Road, Isleworth, TW7 6AF

  P/2025/2867 Submitted 23 Sep 2025 50 yards away

  Erection of a bin store in the existing car park and creation of a loading bay.

  Granted Full applications 13 docs

• West Middlesex University Hospital Twickenham Road, Isleworth, TW7 6AF

  P/2026/1057 Submitted 31 Mar 2026 150 yards away

  Details of Condition 17A (BREEAM Interim) submitted pursuant to planning permission 01137/E/P82 (P/2022/242) dated 14/11/2023 for Demolition of existing buildings and structures and the erection of a five storey Ambulatory Diagnostic Centre including plant enclosure, associated vehicular and cycle parking, landscaping, and associated infrastructure

  Withdrawn Conditions Demolition 3 docs

• West Middlesex University Hospital Twickenham Road, Isleworth, TW7 6AF

  P/2026/1051 Submitted 30 Mar 2026 150 yards away

  Details of Condition 30 (Oil interceptors) submitted pursuant to planning permission 01137/E/P82 (P/2022/2424) dated 14/11/2023 for Demolition of existing buildings and structures and the erection of a five storey Ambulatory Diagnostic Centre including plant enclosure, associated vehicular and cycle parking, landscaping, and associated infrastructure

  Granted Conditions Demolition 8 docs

• WEST MIDDLESEX UNIVERSITY HOSPITAL TWICKENHAM ROAD, ISLEWORTH, TW7 6AF

  P/2022/4087 Submitted 22 Dec 2022 150 yards away

  Temporary permission for the period of four years for the erection of a single storey link building to connect existing MRI units to the main hospital building.

  Granted Full applications 20 docs
  Small domestic

• WEST MIDDLESEX UNIVERSITY HOSPITAL LAND TO THE EAST OF THE MARJORY WARREN BUILDING TWICKENHAM ROAD, ISLEWORTH, TW7 6AF

  P/2024/1034 Submitted 28 Mar 2024 150 yards away

  Application to discharge Schedule 1, Part 2.2 Construction Training Contribution of planning application P/2022/2424 (01137/E/P82) dated 14/11/2023 in line with the requirements of the S106 Legal Agreement for the demolition of existing buildings and structures and the erection of a five storey Ambulatory Diagnostic Centre including plant enclosure, associated vehicular and cycle parking, landscaping, and associated infrastructure

  Granted Conditions Demolition 3 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