Thames Works, Unit 1, Church Street, Chiswick W4 2PD

1. 20 Oct 2025

   Received by Hounslow

2. 19 Dec 2025

   Decision issued: PRIOR APPROVAL NEEDED AND GRANTED

3. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 19 December 2025, 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.

• Second Floor Flat, Thames Works, Church Street, Chiswick, London,W4 2PD

  P/2025/3456 Submitted 17 Nov 2025 50 yards away

  Certificate of lawfulness proposed for change within Class C3 from dwellinghouse (C3a) to supported housing (C3b) for up to five People.

  Granted Lawful development 8 docs
  Domestic

• Flat 5 The Barley Store, Lamb Brewery Studios Church Street, Chiswick, London, W4 2PD

  P/2026/0350 Submitted 4 Feb 2026 50 yards away

  Replacing the existing single glazed window to double glazed window to the rear elevation of flat 5.

  Granted Full applications Windows or glazing 13 docs

• Thames Works, Church Street, Chiswick, London, W4 2PD

  P/2026/1750 Submitted 12 Jun 2026 50 yards away

  Non material amendment to allow the re-wording of condition 2 (approved plans) to update the approved plan list and to amendment the description of development to External alterations to the existing building including amendments to existing openings and associated works to elevations of planning permission P/2025/3155

  Granted Amendments 7 docs

• Thames Works, Church Street, Chiswick, London, W4 2PD

  PA/2026/1927 Submitted 29 Jun 2026 50 yards away

  Prior approval for the installation of 14 roof mounted solar photovoltaic (PV) panels to the existing pitched roof on the buildings Northwest elevation.

  Granted Outline 8 docs

• Thames Works, Church Street, Chiswick, London, W4 2PD

  P/2025/3166 Submitted 20 Oct 2025 50 yards away

  Alterations to existing doorways on the front elevation, one to be widened and a fan light added, and the other replaced with a glazed door.

  Granted Full applications Windows or glazing 13 docs

• Thames Works, Church Street, Chiswick, London, W4 2PD

  P/2025/0155 Submitted 17 Jan 2025 50 yards away

  Erection of a part second floor extension and conversion of the second floor from office use (Class E) to a House of Multiple Occupation for up to 5 people (Class C4)

  Withdrawn Full applications Extension 21 docs

• PA/2026/2810 Awaiting decision

  1 to 18 Claremont Grove, Chiswick, London, W4 2TL

  Prior approval for the erection of one additional storey to allow for six additional self contained flats above 1 to 18 Claremont Grove

  Received 2 Oct, published by the council 9 Oct 2026 Outline
• PA/2026/2702 Awaiting decision

  Land adjacent to 961 Great West Road, Brentford, TW8 9FX

  Prior approval for the installation of a 30m high tower fixed to concrete base, two equipment cabinets at the base and associated ancillary works.

  Received 24 Sep, published by the council 30 Sep 2026 Outline
• 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