21 Heathfield Gardens, Chiswick, London, W4 4JU

This site has had 3 applications since 2022: 1 approved, 1 refused.

• P/2026/1692 Awaiting decision

  21 Heathfield Gardens, Chiswick, London, W4 4JU

  Details of Construction Logistics Plan submitted pursuant to condition 4 of planning permission P/2026/0286 dated 31/03/2026 for Erection of a single storey and part first floor rear extension following the demolition of the conservatory, and creation of a basement extension to the house. Resurfacing existing driveway with permeable paving.

  Submitted 8 Jun 2026 Conditions
• P/2022/4092 Refused

  21 HEATHFIELD GARDENS, CHISWICK, LONDON, W4 4JU

  Enlargement of existing roof, replacement of all metal casement windows to timber framed sash windows and replacement of one front roof window with two

  Decided 20 Mar 2023 Householder

1. 30 Jan 2026

   Received by Hounslow

2. 31 Mar 2026

   Decision issued: APPROVED

3. 12 Aug 2026

   Added to PlanIndex

1 later application on the register refers to this one:

• P/2026/1692 Awaiting decision

  21 Heathfield Gardens, Chiswick, London, W4 4JU

  Details of Construction Logistics Plan submitted pursuant to condition 4 of planning permission P/2026/0286 dated 31/03/2026 for Erection of a single storey and part first floor rear extension following the demolition of the conservatory, and creation of a basement extension to the house. Resurfacing existing driveway with permeable paving.

  Submitted 8 Jun 2026 Conditions

Hounslow granted permission on 31 March 2026, 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.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 21 Heathfield Gardens, Chiswick, London, W4 4JU

  P/2026/1692 Submitted 8 Jun 2026 0m away

  91% historically approved · decision due ~3 Aug

  Details of Construction Logistics Plan submitted pursuant to condition 4 of planning permission P/2026/0286 dated 31/03/2026 for Erection of a single storey and part first floor rear extension following the demolition of the conservatory, and creation of a basement extension to the house. Resurfacing existing driveway with permeable paving.

  Awaiting decision Conditions Extension Demolition 3 docs
  Small domestic

• 21 HEATHFIELD GARDENS, CHISWICK, LONDON, W4 4JU

  P/2022/4092 Submitted 22 Dec 2022 0m away

  Enlargement of existing roof, replacement of all metal casement windows to timber framed sash windows and replacement of one front roof window with two

  Refused Householder Roofing Windows or glazing 11 docs
  Domestic

• 23 Heathfield Gardens, Chiswick, London, W4 4JU

  P/2026/2307 Submitted 7 Aug 2026 18m away

  99% historically approved · decision due ~2 Oct

  Works to tree in a Conservation Area: T1 Cherry (Prunus spp.) – fell to ground level.

  Awaiting decision Trees 3 docs

• 23 Heathfield Gardens, Chiswick, London, W4 4JU

  P/2025/3714 Submitted 15 Dec 2025 18m away

  Erection of two storey side extension with a part single part two storey rear extension, following the demolition of the garage and the two storey rear extension. Replacement of the existing windows throughout with double glazed timber frame units, repositioning of the air source heat pump (ASHP) to rear garden.

  Granted Householder Extension Demolition +1 35 docs
  Domestic

• 23 Heathfield Gardens, Chiswick, London, W4 4JU

  P/2025/2607 Submitted 26 Aug 2025 18m away

  Works to trees within a conservation area - Cherry - Reduce by 2m Height and 1.5m Width.

  Withdrawn Trees 2 docs

• 23 Heathfield Gardens, Chiswick, London, W4 4JU

  P/2026/1864 Submitted 23 Jun 2026 18m away

  Works to Cherry tree within a conservation area. Reduce height by 4.5 metres and back to previous reduction points. Reduce lateral growth by 2-3.5 metres and back to previous reduction points, retaining shortened furnishing growth. Thin internal growth by 15%. Remove ivy 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