12 DEVONSHIRE ROAD, CHISWICK, LONDON, W4 2HD

1. 23 Oct 2019

   Received by Hounslow

2. 16 Dec 2019

   Decision issued: APPROVED

3. 26 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 16 December 2019, 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.

• 2 Devonshire Road, Chiswick, W4 2HD

  PAC/2024/3366 Submitted 27 Sep 2024 24m away

  Prior approval for the change use use of the upper floors into one self contained residential unit with ancillary works while retaining existing ground floor use

  Granted Outline 9 docs

• 15A Devonshire Road, Chiswick, London, W4 2EU

  P/2026/1644 Submitted 3 Jun 2026 45m away

  Replacement of the existing single glazed windows on the rear and front elevations with double glazed windows to match existing.

  Granted Full applications Windows or glazing 5 docs

• 155 Chiswick High Road, Chiswick, London, W4 2DT

  P/2026/2453 Submitted 27 Aug 2026 46m away

  91% historically approved · decision due ~22 Oct

  Variation of Condition 9 ( Internal water usage) to the flats hereby approved, shall be fitted to ensure that the development would achieve the internal water usage of 105 litres per person per day target of planning permission P/2024/2338 approved 07/01/2025 for the conversion of the existing unit on the ground floor into two commercial units incorporating the conversion of the rear garage to commercial space. Erection of a two storey rear extension to facilitate the change of use of the existing commercial unit on the first and second floor into three self contained flats. Installation of one front and one side roof window, solar panels on the roof and side elevation windows.

  Awaiting decision Conditions New dwelling Extension +1 2 docs

• 155 Chiswick High Road, Chiswick, London, W4 2DT

  P/2026/1944 Submitted 1 Jul 2026 46m away

  Non material amendment to allow the revision of the internal dimensions of the plant room and bike store at ground floor level of planning permission P/2024/2338 approved 17/01/2025 for the Conversion of the existing unit on the ground floor into two commercial units incorporating the conversion of the rear garage to commercial space. Erection of a two storey rear extension to facilitate the change of use of the existing commercial unit on the first and second floor into three self contained flats. Installation of one front and one side roof window, solar panels on the roof and side elevation windows

  Granted Amendments New dwelling Extension +1 4 docs

• 155 Chiswick High Road,London,W4 2DT

  P/2026/0637 Submitted 24 Feb 2026 47m away

  Non material amendment to incorporate relocation of plant room and creation of a new access door, detailing to the East Elevation, rooflights size adjustments and reconstruction of chimneys following permission P/2024/2338 dated 17/01/2025 for Conversion of the existing unit on the ground floor into two commercial units incorporating the conversion of the rear garage to commercial space. Erection of a two storey rear extension to facilitate the change of use of the existing commercial unit on the first and second floor into three self contained flats. Installation of one front and one side roof window, solar panels on the roof and side elevation windows.

  Granted Amendments New dwelling Extension +2 8 docs

• 155 Chiswick High Road,Chiswick,W4 2DT

  P/2026/1146 Submitted 14 Apr 2026 47m away

  Details of Construction Logistics Plan submitted pursuant to condition 7 of planning permission P/2024/2338 dated 17/01/2025 for Conversion of the existing unit on the ground floor into two commercial units incorporating the conversion of the rear garage to commercial space. Erection of a two storey rear extension to facilitate the change of use of the existing commercial unit on the first and second floor into three self contained flats. Installation of one front and one side roof window, solar panels on the roof and side elevation windows.

  Granted Conditions New dwelling Extension +1 9 docs

• P/2026/1189 Granted

  12 The Grove, Isleworth, TW7 4JZ

  Installation of one front boundary gate and new windows to allow the conversion of existing single family house to five self contained flats with associated refuse and cycle storage.

  17 Apr 2026 Full applications
• P/2026/1937 Granted

  Flat Ground Floor, 102 New Heston Road, Hounslow, TW5 0LF

  Erection of a single storey detached outbuilding for use as a home office in the rear garden of the flat

  30 Jun 2026 Full applications
• P/2026/1494 Granted

  2 Bath Road, Chiswick, London, W4 1LW

  Demolition of the single-storey rear extension, installation of temporary scaffolding to the façade of the building, installation of associated plant equipment, an external condenser unit and acoustic shelter. Internal layout alterations and installation of secondary glazing, external alterations including re-rendering to allow continued use under Class E (c) and (g)(i)

  6 May 2026 Full applications
• P/2026/1936 Refused

  Flat First Floor, 102 New Heston Road, Hounslow, TW5 0LF

  Erection of a rear roof and outrigger extension with two front rooflights to the flat

  30 Jun 2026 Full applications
• P/2026/0592 Granted

  87 Cranleigh Road, Feltham, TW13 4QA

  Erection of a two storey residential house with associated landscaping, private amenity space, cycle and refuse storage.

  19 Feb 2026 Full applications