The Treaty Centre High Street Hounslow TW3 1ES

1. 9 Oct 2025

   Received by Old Oak and Park Royal Development Corporation

2. 13 Oct 2025

   Validated

   Checked as complete and ready for consideration.

3. 3 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 8 December 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Old Oak and Park Royal Development Corporation took a median of 55 days over the applications it decided in the last year.

This application is with Old Oak and Park Royal Development Corporation for determination, against a statutory target of eight weeks. Over the last year Old Oak and Park Royal Development Corporation decided outline applications in a median of 22 days. More in our guide to how long planning decisions take.

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.

• Phase 1a, Treaty Centre, 263-277 High Street, Hounslow, TW3 1ES

  P/2025/2643 Submitted 1 Sep 2025 50 yards away

  The partial retention of existing retail floorspace fronting the High Street (Class E) and associated access alterations and landscaping.

  Withdrawn Full applications 50 docs

• The Treaty Centre, High Street, Hounslow TW3 1ES

  P/2025/2650 Submitted 29 Aug 2025 50 yards away

  Hybrid application for the complete demolition of the Treaty Centre and associated multi-storey car park and severable phased redevelopment comprising: In full detail: Phase 1a, the partial retention of existing retail floorspace fronting the High Street (Use Class E) and associated access alterations and landscaping. In full detail: Phase 1, new Build-to-Rent (BTR) homes (Use Class C3) and associated private and communal amenity space, new public realm, flexible commercial floorspace (Use Class E), private and publicly accessible car parking spaces and other associated access alterations and landscaping. In Outline: Phase 2 new homes (Use Class C3) and associated private and communal amenity space, new public realm, cultural/community floorspace (Sui Generis and Use Class F), flexible commercial floorspace (Use Class E), and private and publicly accessible car parking spaces and other associated access alterations and landscaping. All matters are reserved, except access. In Outlin... read more

  Withdrawn Outline New dwelling Demolition 200 docs
  Major scheme

• The Treaty Centre High Street Hounslow TW3 1ES

  253881CONS Submitted 9 Oct 2025 50 yards away

  91% historically approved · decision due ~8 Dec

  Hybrid application for the complete demolition of the Treaty Centre and associated multi-storey car park and severable phased redevelopment comprising: In full detail: Phase 1a, the partial retention of existing retail floorspace fronting the High Street (Use Class E) and associated access alterations and landscaping. In full detail: Phase 1, new Build-to-Rent (BTR) homes (Use Class C3) and associated private and communal amenity space, new public realm, flexible commercial floorspace (Use Class E), private and publicly accessible car parking spaces and other associated access alterations and landscaping. In Outline: Phase 2 new homes (Use Class C3) and associated private and communal amenity space, new public realm, cultural/community floorspace (Sui Generis and Use Class F), flexible commercial floorspace (Use Class E), and private and publicly accessible car parking spaces and other associated access alterations and landscaping. All matters are reserved, except access. In Outline: Phase 3 new homes (Use Class C3) and associated private and communal amenity space, new public realm, flexible commercial floorspace (Use Class E), and private and publicly accessible car parking spaces and other associated access alterations and landscaping. All matters are reserved, except access. Building heights across the development will range from 1 to 25 storeys (Out of Borough)

  Awaiting decision Outline New dwelling Demolition

• The Treaty Centre, High Street, Hounslow, TW3 1ES

  PA25/3636 Submitted 9 Oct 2025 50 yards away

  78% historically approved · decision due ~4 Dec

  Hybrid application for demolition of the Treaty Centre and associated multi-storey car park, and redevelopment for Use Class E, C3, F and Sui Generis (see consultation letter for full description). LB Hounslow ref P/2025/2650.

  Awaiting decision Outline Demolition 2 docs

• UNIT 27 TREATY CENTRE HIGH STREET, HOUNSLOW, TW3 1ES

  P/2021/3278 Submitted 12 Aug 2021 50 yards away

  Non-material amendment application seeks to amend Condition 4 to allow Instant Managed Offices Ltd to facilitate the ground floor of Unit 27

  Withdrawn Amendments 4 docs

• 227 High Street, Hounslow, TW3 1DH

  P/2026/1409 Submitted 11 May 2026 50 yards away

  Retrospective application for the installation of one internally illuminated fascia sign and one internally illuminated projecting sign.

  Granted Advertising 7 docs

• 263299OPDCOB Granted

  81 - 98 Shaftesbury Gardens Park Royal NW10 6LL

  Replacement of existing single glazed timber casement windows with double glazed uPVC equivalent. Replacement of existing rainwater goods (RWG) system, and associated redecoration of the bargeboards (Out of Borough Consultation from the OPDC)

  Received 26 Aug, published by the council 10 Sep 2026 Outline
• 263459CONS Awaiting decision

  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 surface joint (Out of Borough)

  Received 11 Sep, published by the council 21 Sep 2026 Outline
• 263226OPDCOB Granted

  Shell Park Royal Service Station Royal Leisure Park Kendal Avenue Acton W3 0BX

  Application for Prior Approval under Schedule 2, Part 16, Class A of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the removal of the existing 17m monopole and 4 no. equipment cabinets, and replacement with a 20m monopole and 3 no. equipment cabinets, the relocation of 1 no. existing equipment cabinet and ancillary development thereto (Out of Borough)

  Received 21 Aug, published by the council 30 Aug 2026 Outline
• 263403OPDCOB Awaiting decision

  6 Standard Road Park Royal NW10 6EU

  Retrospective change of use of the building from Use Class B8 (storage and distribution) to Use Class B2 (general industrial), for use as a vehicle repair and bodywork workshop and associated works. (Out of Borough)

  Received 9 Sep, published by the council 21 Sep 2026 Outline
• 262400CONS Decided

  Gunnersbury Park, Popes Lane Ealing W3 8LQ

  Temporary change of use of areas of Gunnersbury Park for the staging of temporary events between 01 January 2027 and 31 December 2031. Up to 22 live event days per calendar year, with a total of 115 days including set-up, inactive and removal days. Including the erection of associated temporary structures, fencing, ancillary concessions and facilities. (out of borough)

  Received 12 Jun, published by the council 27 Jul 2026 Outline