9 Pyrmont Road, Chiswick, London, W4 3NR

1. 8 Dec 2025

   Received by Hounslow

2. 16 Dec 2025

   Validated

   Checked as complete and ready for consideration.

3. 3 Feb 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.

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

• 9 Pyrmont Road, Chiswick, London, W4 3NR

  P/2026/0059 Submitted 9 Jan 2026 0m away

  Erection of single storey rear extension to the house.

  Granted Householder Extension 13 docs
  Small domestic

• 5 Pyrmont Road, Chiswick, London, W4 3NR

  P/2026/1743 Submitted 12 Jun 2026 10m away

  Works to tree in a Conservation Area. T1 Cherry tree. Located in the rear garden. Remove the large stem that overhangs the neighbour's property and then reduce and reshape the remaining crown by approximately 1 metre.

  Granted Trees 4 docs

• 32 Pyrmont Road, Chiswick, London, W4 3NR

  P/2026/2267 Submitted 3 Aug 2026 45m away

  99% historically approved · decision due ~1 Oct

  Works to tree in a Conservation Area; 1 X Sycamore tree 30% crown reduction in garden.

  Awaiting decision Trees 1 doc

• 29 WALDECK ROAD, CHISWICK, LONDON, W4 3NL

  P/2021/2119 Submitted 28 May 2021 45m away

  Demolition of the existing rear extension and erection of a wraparound extension with seven roof windows, erection of a side window and alteration of roof at first floor rear extension and associated internal alterations.

  Granted Householder Extension Demolition +1 6 docs
  Domestic

• 29 Waldeck Road,Chiswick,W4 3NL

  P/2026/2170 Submitted 27 Jul 2026 45m away

  76% historically approved · decision due ~21 Sep

  Erection of a combined cycle and refuse storage structure at the front boundary. Replacement of existing forecourt floor finish with surface treatment. Replacement of entrance gate. Retention of existing tiled path to front door.

  Awaiting decision Householder 25 docs
  Domestic

• 27 WALDECK ROAD, CHISWICK, LONDON, W4 3NL

  P/2023/0382 Submitted 6 Feb 2023 46m away

  Erection of a single storey rear infill and rear extension and addition of a first floor side window to the house.

  Granted Householder Extension Windows or glazing 12 docs
  Small domestic

• 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