18 Downs View, Isleworth, TW7 5HF

1. 25 Nov 2024

   Received by Hounslow

2. 15 Jan 2025

   Decision issued: GRANT

3. 30 Sep 2026

   Added to PlanIndex

Hounslow granted permission on 15 January 2025, 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.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 16 Downs View, Isleworth, TW7 5HF

  P/2025/3732 Submitted 16 Dec 2025 50 yards away

  Erection of a rear roof extension with hip to gable conversion and front roof windows to the house.

  Refused Householder Extension Loft or dormer +1 10 docs
  Domestic

• 16 Downs View, Isleworth, TW7 5HF

  P/2025/2942 Submitted 30 Sep 2025 50 yards away

  Erection of single storey side extension to the house.

  Granted Householder Extension 13 docs
  Small domestic

• 16 Downs View, Isleworth, TW7 5HF

  P/2025/2940 Submitted 30 Sep 2025 50 yards away

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

  Granted Lawful development Extension Loft or dormer +1 10 docs

• 6 Roxborough Avenue, Isleworth, TW7 5HG

  P/2026/1070 Submitted 1 Apr 2026 50 yards away

  Erection of a part first floor rear extension to the house.

  Granted Householder Extension 13 docs
  Domestic

• 74 PARKWOOD ROAD, ISLEWORTH, TW7 5HD

  P/2023/1230 Submitted 18 Apr 2023 100 yards away

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

  Granted Lawful development Extension Loft or dormer +1 4 docs

• 23 Downs View, Isleworth, TW7 5HF

  P/2024/3516 Submitted 22 Oct 2024 100 yards away

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

  Granted Lawful development Extension Loft or dormer +1 7 docs

• P/2026/2813 Awaiting decision

  150 Wood Lane, Isleworth, TW7 5EQ

  (GSGS877009741) Certificate of lawfulness proposed for the erection of a single storey outbuilding to be used as a home gym / playroom / shed in the rear garden of the house

  Received 5 Oct, published by the council 9 Oct 2026 Lawful development
• P/2026/2334 Granted

  69 Central Avenue, Hounslow, TW3 2QW

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

  Received 12 Aug, published by the council 16 Aug 2026 Lawful development
• P/2026/2459 Granted

  2 Letchworth Avenue, Feltham, TW14 9RY

  Certificate of Lawfulness for the proposed hip to gable roof conversion, installation of two front roof windows, and erection of a rear roof extension to the existing house.

  Received 28 Aug, published by the council 5 Sep 2026 Lawful development
• P/2026/2787 Awaiting decision

  13 Denbigh Road, Hounslow, TW3 4DU

  Certificate of Lawfulness for the proposed erection of a detached outbuilding in the rear garden.

  Received 1 Oct, published by the council 9 Oct 2026 Lawful development
• P/2026/2790 Awaiting decision

  14 Old Farm Close, Hounslow, TW4 7AB

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

  Received 1 Oct, published by the council 6 Oct 2026 Lawful development