Dartmouth House, 1A Dartmouth Place, Chiswick, London, W4 2RH

1. 23 Oct 2025

   Received by Hounslow

2. 8 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

• Dartmouth House, 1A Dartmouth Place, Chiswick, London, W4 2RH

  P/2025/3534 Submitted 25 Nov 2025 0m away

  Alterations to an existing detached garage and outbuilding. Replacement crit-tall doors to replace existing up-and-over, installation of side entrance and window on north elevation and four rooflights. Installation of air source heat pump.

  Granted Householder Loft or dormer Windows or glazing 24 docs
  Small domestic

• Dartmouth House, 1A Dartmouth Place, Chiswick, London, W4 2RH

  P/2025/2798 Submitted 16 Sep 2025 0m away

  Works to tree within TPO 102. Lime. Remove major deadwood. Selectively remove epicormic growth throughout crown. Crown lift to 5 metres.

  Granted Trees 4 docs

• Dartmouth House, 1A Dartmouth Place, Chiswick, London, W4 2RH

  P/2025/2782 Submitted 16 Sep 2025 0m away

  Works to trees within a conservation area. Ash, rear garden. Crown reduce by up to 5 metres, remove major deadwood, crown lift to five metres and reduce overextended lateral branches by up to 4 metres. Holm Oak, front garden. Crown reduce by up to 4 metres, crown lift to 5 metres.

  Granted Trees 4 docs

• 1 Dartmouth Place, Chiswick, London, W4 2RH

  P/2026/1393 Submitted 8 May 2026 26m away

  T1. Evergreen Magnolia (M.grandiflora). Section fell to ground level T2. 3 x Small Bay Trees (Laurus nobilis). Fell to ground level T3. Palm. Fell to ground level T4. Bay (Laurus nobilis). Reduce height by 1 metre and tidy all sides to shape and tidy T5 Holly (Ilex aquifolium). Trim top to create shallow rounded 'umbrella' form and by removing up to 0.5 metres of regrowth T6 Large Palm. Fell to ground level T7 Palm. Fell to ground level T8 Palm. Fell to ground level T10 Variegated Holly (Ilex aquifolium). Reduce crown by 0.75 metres to suitable growth points and trim back all sides to shape and tidy T11 Common Holly (Ilex aquifolium). Reduce crown by 0.75 metres to suitable growth points and trim back all sides to shape and tidy.

  Granted Trees 4 docs

• 8 CORNEY ROAD, CHISWICK, LONDON, W4 2RA

  P/2019/4063 Submitted 11 Nov 2019 48m away

  Erection of a rear roof extension with Juliette balcony and two front roof windows to the house

  Granted Householder Extension Windows or glazing 7 docs
  Domestic

• 34 CORNEY ROAD, CHISWICK, W4 2RA

  P/2023/0583 Submitted 22 Feb 2023 71m away

  Certificate of Lawfulness for formation of vehicular access to provide an off street parking space & electric car charge point

  Granted Lawful development 8 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