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

1. 16 Sep 2025

   Received by Hounslow

2. 5 Nov 2025

   Decision issued: TPO 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.

Tree applications cover work to protected trees: those under a tree preservation order need consent for pruning or felling, and trees in a conservation area need six weeks written notice before work starts. The council assesses the amenity value of the tree and can refuse consent, approve it with conditions, or in conservation areas make a preservation order in response.

More on trees 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/2025/3214 Submitted 23 Oct 2025 0m away

  Replacement of various existing UPVC and aluminium windows and doors with double-glazed aluminium Crittall-style units, including changes to windows to doors on the ground floor with full-height windows, and installation of a roof lantern to the south entrance flat roof.

  Granted Householder Windows or glazing 39 docs
  Domestic

• 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/2026/2295 Granted

  9 Grove Park Terrace, Chiswick, London, W4 3QG

  Works to trees in a Conservation Area. Purple Plum (T1). Fell to ground level. Bay Laurel (T2). Fell to ground level.

  6 Aug 2026 Trees
• P/2026/2511 Awaiting decision

  12 Chatsworth Road, Chiswick, London, W4 3HY

  Works to trees within a conservation area. T1 Sycamore - Reduce all aspects of the crown by approx. 3-4m back to previous points of reduction. T2 Lawson Cypress - Reduce in height by approx. 2m and trim back all other aspects to create a tight and tidy shape. Cut back overhanging branches on the right-hand neighbours side. T3 Bay - Reduce all aspects by approx. 2m, cutting away from the shed roof and away from the rear neighbour.

  3 Sep 2026 Trees
• P/2026/2509 Awaiting decision

  51 Grove Park Road, Chiswick, London, W4 3RU

  Work to trees within a conservation area. T1 Lime - Reduce all aspects of the crown by approx. 3-4m back to previous points of reduction. T2 Box Elder - Reduce all aspects of the crown by approx. 3-4m. Remove deadwood. T3 Pear - Reduce height to 3m from ground level. Remove any dead / dangerous branches.

  3 Sep 2026 Trees
• P/2026/2225 Granted

  125A Ridgeway Road North, Isleworth, TW7 5LX

  Works to trees in a conservation area. T1. Walnut. Fell to ground level and grind stump. T2. Leyland Cypress. Fell to ground level and grind stump.

  30 Jul 2026 Trees
• P/2026/2491 Awaiting decision

  2, Cope Studios Brooks Road, Chiswick, London, W4 3BJ

  Works to tree in a Conservation Area 1 X T1 Gleditsia reduce crown height by 4m, tie in sides by 3m and crown lift 3m in front garden

  2 Sep 2026 Trees