20 Challis Road, Brentford, TW8 9PR

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

• P/2025/2693 Granted

  20 Challis Road, Brentford, TW8 9PR

  Certificate of lawfulness for the proposed erection of a rear roof extension with front roof windows to the house, rear juliet balcony and removal of a rear chimney.

  Decided 17 Dec 2025 Lawful development

1. 5 Sep 2025

   Received by Hounslow

2. 16 Oct 2025

   Decision issued: PRIOR APPROVAL IS NOT REQUIRED

3. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 16 October 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.

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

• 20 Challis Road, Brentford, TW8 9PR

  P/2025/2693 Submitted 5 Sep 2025 50 yards away

  Certificate of lawfulness for the proposed erection of a rear roof extension with front roof windows to the house, rear juliet balcony and removal of a rear chimney.

  Granted Lawful development Extension Windows or glazing 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

• PA/2026/2437 Refused

  17 Orchard Road, Brentford, TW8 0QX

  Ground floor rear extension 5.51 metres deep, maximum height of 2.80 metres, 2.06 metres high to the eaves

  Received 26 Aug, published by the council 2 Sep 2026 Prior approval
• PA/2026/2481 Refused

  6 Speart Lane, Hounslow, TW5 9EF

  Ground floor rear extension 8.00 metres deep, maximum height of 3.00 metres, 2.80 metres high to the eaves

  Received 1 Sep, published by the council 5 Sep 2026 Prior approval
• PA/2026/2768 Awaiting decision

  86 Kneller Gardens, Isleworth, TW7 7NW

  Ground floor rear extension 4.50 metres, maximum height 3.20 metres, 2.70 metres high to the eaves.

  Received 30 Sep, published by the council 6 Oct 2026 Prior approval
• PA/2026/2393 Granted

  2 Letchworth Avenue, Feltham, TW14 9RY

  Ground floor rear extension 6.00 metres deep, maximum height of 3.00 metres, 2.85 metres high to the eaves

  Received 18 Aug, published by the council 23 Aug 2026 Prior approval
• PA/2026/2364 Granted

  9 Westbourne Road, Feltham, TW13 4LX

  Ground floor rear extension 4.5 metres deep, maximum height of 2.8 metres, 2.8 metres high to the eaves

  Received 13 Aug, published by the council 23 Aug 2026 Prior approval