12 SUSSEX AVENUE, ISLEWORTH, TW7 6LA

1. 9 Jul 2021

   Received by Hounslow

2. 16 Aug 2021

   Decision issued: PRIOR APPROVAL IS NOT REQUIRED

3. 16 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 16 August 2021, 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.

• 2 Sussex Avenue, Isleworth, TW7 6LA

  P/2026/2403 Submitted 19 Aug 2026 50 yards away

  75% historically approved · decision due ~14 Oct

  Erection of a two storey side extension, single storey rear extension and part first floor rear extension to the house.

  Awaiting decision Householder Extension 3 docs
  Small domestic

• 2 Sussex Avenue, Isleworth, TW7 6LA

  P/2026/1603 Submitted 28 May 2026 50 yards away

  Erection of two storey side extension and part single storey part two storey rear extension.

  Granted Householder Extension 6 docs
  Small domestic

• 246 WOODLAND GARDENS, ISLEWORTH, TW7 6LT

  P/2023/0041 Submitted 4 Jan 2023 50 yards away

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

  Granted Lawful development Extension Loft or dormer +1 8 docs

• 136 Woodlands Road, Isleworth, TW7 6JZ

  P/2024/3012 Submitted 9 Sep 2024 50 yards away

  Proposal for the demolition of existing single storey double garage and construction of new single garage and utility area with first floor side extension above. Extension of existing second floor loft conversion above the proposed first floor extension with rear dormer enlarged and side dormer re-designed. Juliette balcony proposed to the second floor rear elevation and 2 Velux roof lights to the front roof slopes.

  Granted Householder Extension Loft or dormer +1 13 docs
  Small domestic

• 136 Woodlands Road, Isleworth, TW7 6JZ

  PA/2026/1956 Submitted 1 Jul 2026 50 yards away

  Ground floor rear extension 6.00 metres deep, maximum height 2.90 metres, 2.90 metres high to the eaves.

  Granted Prior approval Extension 6 docs

• 32 Sussex Avenue, Isleworth, TW7 6LA

  PA/2025/2949 Submitted 1 Oct 2025 50 yards away

  Ground floor rear extension 5.00 metres deep, maximum height of 3.50 metres, 3.20 metres high to the eaves

  Withdrawn Prior approval Extension 5 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