12 Alwyn Avenue, Chiswick, London, W4 4PB

1. 30 Jul 2026

   Received by Hounslow

2. 3 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 12 Aug 2026

   Added to PlanIndex

4. 26 Aug 2026

   Decision issued: NO OBJECTION

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

• 26 Alwyn Avenue, Chiswick, London, W4 4PB

  P/2024/3599 Submitted 30 Oct 2024 43m away

  Works to T1 Eucalyptus tree in rear garden within a conservation area. Remove 3-3.5 metres of tree including 2 large lateral limbs.

  Granted Trees 3 docs

• 3 WAVENDON AVENUE, CHISWICK, W4 4NP

  P/2023/0131 Submitted 13 Jan 2023 49m away

  Creation of a basement with front and rear lightwells to the house

  Refused Householder 14 docs
  Domestic

• 18 SUTTON COURT ROAD, CHISWICK, W4 4NG

  P/2023/0826 Submitted 14 Mar 2023 61m away

  Works to trees within Conservation Area: Evergreen Magnolia (Magnolia grandiflora) (T1) - Reduce crown height by two metres and width by one metre, while retaining furnishing growth, to improve access to light and reduce encroachment into neighbouring property. Bay (Laurus Nobilis) (T2) - Reduce crown diameter by approximately 0.5 to one metre to improve access to light, reduce encroachment into neighbouring property and provide additional space within the rear garden.

  Granted Trees 4 docs

• 34 SUTTON COURT ROAD, CHISWICK, LONDON, W4 4NH

  P/2021/2263 Submitted 7 Jun 2021 79m away

  Erection of a side dormer and a rear roof dormer with outrigger roof extension with three front roof windows to the house

  Refused Householder Extension Loft or dormer +1 11 docs
  Domestic

• 34 SUTTON COURT ROAD, CHISWICK, W4 4NH

  P/2021/2212 Submitted 3 Jun 2021 79m away

  Erection of a side infill extension including refurbishment of existing side extension with the removal of existing render and installation of cladding.

  Granted Householder Extension 13 docs
  Domestic

• 34 Sutton Court Road, Chiswick, London, W4 4NH

  P/2025/3462 Submitted 18 Nov 2025 79m away

  Creation of a vehicle access and installation of electric gates to the side with associated boundary and landscaping works to house.

  Granted Householder 12 docs
  Domestic

• 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