2 Mayfield Avenue, Chiswick, London, W4 1PW

1. 29 Oct 2025

   Received by Hounslow

2. 20 Jan 2026

   Decision issued: APPROVED

3. 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.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 10 Mayfield Avenue, Chiswick, London, W4 1PW

  P/2024/3349 Submitted 6 Oct 2024 27m away

  Extended rear dormer with a roof window to rear roof slope, replacement window to sash window to rear, replacement dormer window to sash and a rooflight to front roof slope and new windows to ground floor side elevations including internal alterations.

  Refused Householder Loft or dormer Windows or glazing 16 docs
  Domestic

• 132 Chiswick High Road, Chiswick, London, W4 1PU

  P/2025/3419 Submitted 14 Nov 2025 41m away

  Creation of an outdoor seating area with balustrade enclosure to the front of the restaurant with alterations to two of the six front panels to existing shopfront.

  Refused Full applications Windows or glazing 29 docs

• 178 Chiswick High Road,Chiswick,London,W4 1PR

  P/2026/1598 Submitted 28 May 2026 62m away

  Installation of one externally illuminated fascia sign and one internally illuminated projecting sign.

  Granted Advertising 9 docs

• 125A CHISWICK HIGH ROAD, CHISWICK, LONDON, W4 2ED

  P/2019/3816 Submitted 23 Oct 2019 67m away

  Change of use from Retail (Use Class: A1) to a flexible Dentist (Use Class: D1a) or Beauty Salon (Sui Generis)

  Refused Full applications 6 docs

• 5 Thornton Avenue, Chiswick, London, W4 1QE

  P/2026/0156 Submitted 19 Jan 2026 67m away

  Erection of a single storey rear and side infill extension to the house.

  Granted Householder Extension 9 docs
  Small domestic

• 5 Thornton Avenue, Chiswick, London, W4 1QE

  P/2026/0347 Submitted 3 Feb 2026 67m away

  Certificate of lawfulness for the proposed rear roof extension with one front roof window to the house.

  Granted Lawful development Extension Windows or glazing 7 docs

• P/2026/2047 Granted

  9 Borough Road, Isleworth, TW7 5DY

  Erection of a single storey rear extension.

  10 Jul 2026 Householder
• P/2026/1858 Granted

  8 CONNAUGHT AVENUE, HOUNSLOW, TW4 5BW

  Erection of single storey front extension to the outbuilding for used as storage, office and a Gym. Following part demolition of the outbuilding.

  23 Jun 2026 Householder
• P/2026/2503 Awaiting decision

  25 Arnold Crescent, Isleworth, TW7 7NS

  Erection of a single storey rear, two storey side extension, and rear roof extension with two front roof windows to the house.

  3 Sep 2026 Householder
• P/2026/1522 Granted

  4 Camborne Way, Hounslow, TW5 0PW

  Erection of a single storey rear extension and reduction in width of the existing side and rear extension.

  20 May 2026 Householder
• P/2026/2024 Granted

  20 Hartland Road, Isleworth, TW7 6RH

  Erection of a rear roof extension with windows to the front of the house.

  8 Jul 2026 Householder