15a To 15c Windmill Road, Brentford, TW8 0QD

1. 7 Nov 2025

   Received by Hounslow

2. 30 Jan 2026

   Validated

   Checked as complete and ready for consideration.

3. 27 Mar 2026

   Decision issued: APPROVED

4. 12 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

• Blk 15a To 15c, Windmill Road, Brentford, TW8 0QD

  P/2026/2254 Submitted 3 Aug 2026 0m away

  65% historically approved · decision due ~28 Sep

  Enlargement of the existing basement with a front lightwell. Installation of a new roof window and increase the height of the rear second floor windows. Alterations to the existing front garden with associated cycle and refuse storage.

  Awaiting decision Full applications Roofing Windows or glazing 9 docs

• 15a to 15c Windmill Road, Brentford, London TW8 0QD

  P/2026/1421 Submitted 11 May 2026 0m away

  Conversion of three self-contained flats into one house and erect a single storey wrap-around rear extension at lower ground floor level. Replacement of all windows to sash windows and one rear window to juliet balcony. Relocating the main entrance from the side to the front elevation with a canopy, the erection of a single storey side extension and to install two air source heat pumps in the rear garden.

  Granted Full applications New dwelling Extension +1 11 docs
  Domestic

• Blk 15a To 15c,Windmill Road, Brentford, TW8 0QD

  P/2026/1570 Submitted 27 May 2026 0m away

  Alterations to the front boundary to install a new front gate. Installation of cycle and refuse storage.

  Granted Full applications 10 docs

• 15a To 15c Windmill Road, Brentford, TW8 0QD

  P/2025/3345 Submitted 7 Nov 2025 0m away

  Conversion of three self-contained flats into one house and erect a single storey wrap-around rear extension at lower ground floor level. Construction of a platform at ground floor level to create off-street parking and an additional room below with front lightwell, relocation of the staircase and main entrance from the side to the front to allow access to the basement level and erection of a front porch and side extension. Installation of storage in front garden. Replacement of all windows to sash windows and one rear window to juliet balcony

  Withdrawn Full applications New dwelling Extension +1 15 docs
  Domestic

• 69 Hamilton Road, Brentford, TW8 0QF

  P/2025/0918 Submitted 22 Mar 2025 28m away

  Installation of nine solar panels to the roof of the house.

  Withdrawn Householder 11 docs
  Domestic

• 3 Windmill Road, Brentford, TW8 0QD

  P/2026/0875 Submitted 16 Mar 2026 70m away

  Erection of a single storey and part two storey rear extension with associated roof alteration to the house.

  Granted Householder Extension 19 docs
  Small domestic

• 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