99 Chaucer Avenue, Hounslow, TW4 6NA

1. 3 Dec 2025

   Received by Hounslow

2. 23 Feb 2026

   Decision issued: PRIOR APPROVAL IS NOT REQUIRED

3. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 23 February 2026, 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.

• 107 Chaucer Avenue, Hounslow, TW4 6NA

  P/2025/2556 Submitted 20 Aug 2025 50 yards away

  Certificate

  Withdrawn Lawful development 2 docs

• 109 Berkeley Avenue, Hounslow, TW4 6LD

  P/2025/3404 Submitted 12 Nov 2025 50 yards away

  Certificate of lawfulness for the existing single storey rear extension and detached outbuilding in the rear garden.

  Granted Lawful development Extension 13 docs
  Small domestic

• 174 Berkeley Avenue, Hounslow, TW4 6LB

  P/2026/0197 Submitted 21 Jan 2026 100 yards away

  Erection of a single storey rear extension to the house.

  Granted Householder Extension 8 docs
  Small domestic

• 126 Byron Avenue, Hounslow, TW4 6LY

  P/2026/0866 Submitted 16 Mar 2026 100 yards away

  Erection of a single storey detached outbuilding for use as a playroom in the rear garden. Following demolition of the existing shed.

  Refused Householder Demolition 42 docs
  Small domestic

• 126 Byron Avenue, Hounslow, TW4 6LY

  P/2026/1783 Submitted 16 Jun 2026 100 yards away

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

  Granted Lawful development 10 docs

• 111 Byron Avenue, Hounslow, TW4 6LU

  P/2026/1726 Submitted 10 Jun 2026 100 yards away

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

  Granted Lawful development 7 docs

• 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