23 Chatsworth Road,Chiswick,W4 3HY

1. 20 Jul 2026

   Received by Hounslow

2. 27 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 2 Sep 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 22 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Hounslow took a median of 55 days over the applications it decided in the last year.

This application is with Hounslow for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

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

• 21 Chatsworth Road, Chiswick, London, W4 3HY

  P/2026/0991 Submitted 25 Mar 2026 11m away

  Works to Leylandii Hedge (H1) within a conservation area: Trim back to established growth by removing mature upright limbs and trim sides to clear from neighbouring boundaries.

  Granted Trees 4 docs

• 19 Chatsworth Road, Chiswick, London, W4 3HY

  P/2025/3400 Submitted 12 Nov 2025 16m away

  Works to a tree within a conservation area. Plum (T2). Cut back overhanging branches by up to 1.5 metres and to the property boundary line.

  Granted Trees 4 docs

• 17 Chatsworth Road, Chiswick, London, W4 3HY

  P/2025/3399 Submitted 12 Nov 2025 25m away

  Works to four trees within a conservation area. Cherry (T1). Reduce all aspects of the crown by approximately 2.5 metres to tidy shape. Olive (T3). Reduce all aspects of the crown by approximately 1.5 metres to tidy shape. Elder (T4). Reduce height by approximately 2.5 metres and shape. Conifer (T5). Reduce branch at the rear to match remaining branches. Reduce branch overhanging the neighbour. Reduce the lower branches.

  Granted Trees 4 docs

• 15 Chatsworth Road, Chiswick, London, W4 3HY

  P/2026/0745 Submitted 4 Mar 2026 32m away

  99% historically approved · decision due ~29 Apr

  Works to two trees within a conservation area - T4 Cypress x 1 - Reduce height by 2.5m. Remove wisteria. T1 Cypress x 1 - Reduce the height of the canopy by 3.5m. Remove wisteria

  Awaiting decision Trees 2 docs

• 29 Chatsworth Road, Chiswick, London, W4 3HY

  P/2026/1939 Submitted 30 Jun 2026 35m away

  Works to Eucalyptus (T1) within a conservation area. Re-pollard by removing approximately 2.5 metres of regrowth and back to previous pollard points.

  Granted Trees 4 docs

• 13 Chatsworth Road, Chiswick, London, W4 3HY

  P/2026/0757 Submitted 5 Mar 2026 41m away

  Works to Cherry tree (Prunus spp) in front garden. Fell to ground level.

  Granted Trees 4 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