111 St Stephens Road, Hounslow, TW3 2BL

1. 17 Dec 2025

   Received by Hounslow

2. 6 Feb 2026

   Decision issued: GRANT

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.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 111 St Stephens Road, Hounslow, TW3 2BL

  P/2026/1210 Submitted 20 Apr 2026 0m away

  Works to tree in a Conservation Area. T1 False Acacia. Fell to ground level. Rear garden.

  Granted Trees 4 docs

• 111 St Stephens Road, Hounslow, TW3 2BL

  P/2025/3739 Submitted 17 Dec 2025 0m away

  Erection of a single storey rear extension following the demolition of the existing conservatory.

  Granted Householder Extension Demolition 8 docs
  Small domestic

• 111 St Stephens Road, Hounslow, TW3 2BL

  P/2025/1369 Submitted 30 Apr 2025 0m away

  Works to tree within a conservation area - T5 False Acacia (Robinia pseudoacacia) - Fell to ground level

  Withdrawn Trees 2 docs

• 111 St Stephens Road, Hounslow, TW3 2BL

  P/2026/1231 Submitted 22 Apr 2026 0m away

  Non material amendment to remove the top triangular window and add a roof window following permission P/2025/3739 dated 09/02/2026 for Erection of a single storey rear extension following the demolition of the existing conservatory.

  Granted Amendments Extension Demolition +1 3 docs
  Small domestic

• 109 St Stephens Road, Hounslow, TW3 2BL

  P/2026/2325 Submitted 11 Aug 2026 8m away

  100% historically approved · decision due ~6 Oct

  Certificate of lawfulness proposed for erection of single-storey detached out building for use as a hobby room in the rear garden.

  Awaiting decision Lawful development 5 docs
  Small domestic

• 144 St Stephens Road, Hounslow, TW3 2BW

  P/2024/3480 Submitted 18 Oct 2024 37m away

  Works to trees within a conservation area: Back Garden T1 (Sycamore) x4 - Crown lift to 5m above ground. T2: (Ash) - Lift crown to 5m above ground level.

  Granted Trees 4 docs

• P/2026/2033 Granted

  3 Benedict Drive, Feltham, TW14 8JH

  Certificate of lawfulness for the proposed erection of a rear roof extension with hip to gable conversion with windows to the front and side of the house.

  8 Jul 2026 Lawful development
• P/2026/2027 Granted

  115 Northumberland Crescent, Feltham, TW14 9SP

  Certificate of lawfulness for the proposed erection of a rear roof extension and windows to the front of the house.

  8 Jul 2026 Lawful development
• P/2026/2009 Granted

  3 Brainton Avenue, Feltham, TW14 0AZ

  Certificate of lawfulness for the proposed erection of a rear roof extension and Juliette balcony with front roof windows to the house.

  7 Jul 2026 Lawful development
• P/2026/2014 Granted

  82 Sussex Avenue, Isleworth, TW7 6LB

  Certificate of lawfulness for the proposed erection of a rear roof extension, a porch to the front of the house, and a front roof window.

  7 Jul 2026 Lawful development
• P/2026/2473 Awaiting decision

  16 Somerset Waye, Hounslow, TW5 9HG

  Certificate of lawfulness for the proposed erection of a rear roof extension with two roof windows to the front and alterations to the existing side roof from flat roof to pitched roof.

  1 Sep 2026 Lawful development