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

This site has had 2 applications since 2024: 2 approved, 0 refused.

• P/2025/2867 Granted

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

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

  Decided 4 Dec 2025 Full applications

1. 11 Sep 2024

   Received by Hounslow

2. 7 Nov 2024

   Decision issued: PRIOR APPROVAL NEEDED AND GRANTED

3. 26 Jul 2026

   Added to PlanIndex

Hounslow granted permission on 7 November 2024, 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.

An outline application tests the principle of developing a site, holding back details such as appearance and landscaping as reserved matters for later approval. More in our guide to planning application types.

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

  P/2026/0117 Submitted 14 Jan 2026 50 yards away

  Alterations to the external elevations to allow installation of safety windows and doors at the main entrance, new external fencing and new external plant (HVAC) compound for new mental health crisis assessment centre (MHCAS) to part of the ground floor of Lakeside Mental Health Centre

  Granted Full applications Windows or glazing 11 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  Withdrawn Conditions Demolition 3 docs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 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

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

  P/2021/2572 Submitted 24 Jun 2021 150 yards away

  Removal of the existing close boarded boundary fence and erection of a new 4m high secure fence around the perimeter of the existing garden of Robin Ward in Lakeside Mental Health Unit.

  Granted Full applications 13 docs
  Small domestic

• SC/2026/2149 Decided

  LAND AT CHISWICK ROUNDABOUT, CHISWICK, W4 5QJ

  Scoping opinion for redevelopment of the site to provide 496 co-living units and 60 C3 affordable units alongside retail offering, play space and a roof level external amenity space, with a maximum height of 24 storeys

  Received 22 Jul, published by the council 26 Jul 2026 Outline
• PAC/2026/2008 Granted

  First Floor, Vine Works, Church Street, Chiswick, London, W4 2PD

  Prior Approval for change of use of the existing building's first floor office (Use Class E) to a self-contained one bedroom, two person flat (Use Class C3).

  Received 3 Jul, published by the council 26 Jul 2026 Outline
• SC/2026/1860 Decided

  Brentford Community Stadium Lionel Road South, Brentford, TW8 0RU

  Scoping opinion for the use of the existing stadium for live music events.

  Received 23 Jun, published by the council 26 Jul 2026 Outline
• PA/2026/1852 Granted

  Dukes Gate, Acton Lane, Chiswick, London, W4 5DX

  Prior approval for the erection of an additional floor extension to provide 10 residential units

  Received 18 Jun, published by the council 26 Jul 2026 Outline
• PAC/2026/1850 Granted

  Dukes Gate, Acton Lane, Chiswick, London, W4 5DX

  Prior approval for the change of use from commercial, business and service (Use Class E) to residential floorspace (C3) creating 29 residential units

  Received 18 Jun, published by the council 26 Jul 2026 Outline