The Treaty Centre High Street Hounslow TW3 1ES

1. 9 Oct 2025

   Received by Ealing

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.

   Ealing took a median of 55 days over the applications it decided in the last year.

This application is with Ealing for determination, against a statutory target of eight weeks. Over the last year Ealing decided outline applications in a median of 20 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  Withdrawn Full applications 50 docs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  Withdrawn Outline New dwelling Demolition 200 docs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

  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

• The Treaty Centre High Street Hounslow TW3 1ES

  253881CONS Submitted 9 Oct 2025 50 yards away

  90% 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

• 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

• 261872OPDCOB Granted

  4 Portal Way Acton W3 6RT

  Application under Section 96A of the Town and Country Planning Act 1990 (as amended), for a non-material amendment pursuant to planning permission reference 24/0051/FUMOPDC dated 04/12/2025 for 'Demolition of all existing buildings and structures on site and the mixed-use redevelopment of the site to provide two buildings, comprising residential units (Use Class C3), a hotel (Use Class C1), commercial, business and service units (Use Class E), podium level, car and cycle parking, refuse and service areas, plant, access, hard and soft landscaping, public realm and highway works and other works associated with the development. The application is accompanied by an Environmental Statement.' Changes are proposed to the number of residential units and overall housing mix, the total floorspace of hotel and commercial, business and service uses, the internal layout, facade treatment, car and cycle parking, and other associated changes (Out of Borough)

  Received 29 Apr, published by the council 25 Jul 2026 Outline
• 262001PANDF Decided

  Victoria Court Kingsbridge Avenue Acton W3 9AH

  Construction of additional storey to accommodate six self-contained residential units (Prior Approval Application, under Part 20, Class A New Dwellinghouses on detached blocks of flats)

  Received 14 May, published by the council 25 Jul 2026 Outline
• 260714OPDCOB Decided

  26 Park Royal Road Park Royal NW10 7JW

  Reserved Matters Application for the demolition of the existing building and structures and redevelopment of the site comprising erection of a storage building (Use Class B8) with ancillary office floorspace (Use Class E(g)(i)), together with associated parking and landscaping, pursuant to outline planning permission 23/0166/OUTOPDC dated 28/03/2024 for Outline Planning Application (with all matters reserved except access) for the redevelopment of the site and the erection of a self-storage facility (Class Use B8) with ancillary office floorspace, together with associated parking and landscaping (Out of Borough from the OPDC)

  Received 19 Feb, published by the council 25 Jul 2026 Outline
• 261871OPDCOB Granted

  Asda 2 - 20 Western Road Park Royal NW10 7LW

  Demolition, site clearance and enabling works for the erection of a temporary single-storey car park deck and a temporary petrol filling station, amendments to car park, temporary vehicular access arrangements, and associated works ( out of borough)

  Received 29 Apr, published by the council 25 Jul 2026 Outline
• 261869OPDCOB Granted

  Asda 2 - 20 Western Road Park Royal NW10 7LW

  The comprehensive phased redevelopment of the existing supermarket and Petrol Filling Station (PFS), comprising new buildings containing residential units (Class C3), a new ASDA superstore (Use Class E), Flexible Town Centre Commercial Floorspace including Use Class E (a)(b)(c)(d)(e)(f)(g), F1 (a)(b)(c)(d)(e)(f), F2 (a)(b), and Sui Generis uses (c)(d)(f)(p)(q)(t)(v), public open space, private and communal amenity space, landscaping, vehicular access, car parking, cycle parking, demolition and other associated works (the Proposed Development). This application is accompanied by an Environmental Statement ( out of borough)

  Received 29 Apr, published by the council 25 Jul 2026 Outline