20 Challis Road, Brentford, TW8 9PR

This site has had 2 applications since 2025: 2 approved, 0 refused.

• PA/2025/2694 Granted

  20 Challis Road, Brentford, TW8 9PR

  Ground floor rear extension 5.00 metres deep, maximum height 3.47 metres, 3.47 metres high to the eaves.

  Decided 16 Oct 2025 Prior approval

1. 5 Sep 2025

   Received by Hounslow

2. 23 Oct 2025

   Validated

   Checked as complete and ready for consideration.

3. 17 Dec 2025

   Decision issued: GRANT

4. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 17 December 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.

• 20 Challis Road, Brentford, TW8 9PR

  PA/2025/2694 Submitted 5 Sep 2025 50 yards away

  Ground floor rear extension 5.00 metres deep, maximum height 3.47 metres, 3.47 metres high to the eaves.

  Granted Prior approval Extension 4 docs

• 16 CHALLIS ROAD, BRENTFORD, TW8 9PR

  PA/2021/2706 Submitted 2 Jul 2021 50 yards away

  Ground floor rear extension 5 metres deep, maximum height of 3 metres, 2.70 metres high to the eaves

  Refused Prior approval Extension 4 docs

• 16 CHALLIS ROAD, BRENTFORD, TW8 9PR

  PA/2021/3407 Submitted 20 Aug 2021 50 yards away

  Ground floor rear extension 5 metres deep, maximum height of 3 metres, 2.70 metres high to the eaves

  Refused Prior approval Extension 4 docs

• 1 Clements Place, Brentford, TW8 9PS

  P/2026/0677 Submitted 26 Feb 2026 50 yards away

  Erection of single storey rear extension and a detached outbuilding for use as a gym and storage in the rear garden.

  Granted Householder Extension 17 docs
  Small domestic

• 3 Clements Place, Brentford, TW8 9PS

  P/2026/2131 Submitted 21 Jul 2026 50 yards away

  100% historically approved · decision due ~27 Oct

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

  Awaiting decision Lawful development Extension Loft or dormer +1 11 docs

• 9 CLEMENTS PLACE, BRENTFORD, TW8 9PS

  P/2021/2771 Submitted 7 Jul 2021 50 yards away

  Retrospective application for change of use from single dwellinghouse to two flats.

  Withdrawn Full applications New dwelling 13 docs
  Several homes

• 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