76 Argyle Avenue, Hounslow, TW3 2LN

This site has had 3 applications since 2026: 2 approved, 0 refused.

• P/2026/1490 Granted

  76 Argyle Avenue, Hounslow, TW3 2LN

  Certificate of Lawfulness for the proposed erection of a rear roof extension, including a hip-to-gable roof conversion and installation of three front roof windows, erection of a front porch, and erection of a single-storey detached outbuilding in the rear garden.

  Decided 15 Jul 2026 Lawful development
• PA/2026/1491 Granted

  76 Argyle Avenue, Hounslow, TW3 2LN

  Ground floor rear extension 6.00 metres deep, maximum height of 3.00 metres, 2.82 metres high to the eaves

  Decided 3 Jul 2026 Prior approval

1. 19 Aug 2026

   Received by Hounslow

2. 3 Sep 2026

   Validated

   Checked as complete and ready for consideration.

3. 5 Sep 2026

   Added to PlanIndex

4. 30 Sep 2026

   Status changed to REGISTERED: Under Assessment

   Previously REGISTERED: Under Consultation.

5. Decision

   Awaiting decision

   Decision expected by 29 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Hounslow took a median of 56 days over the applications it decided in the last year.

This application is with Hounslow for determination, against a statutory target of eight weeks. Over the last year Hounslow decided householder applications in a median of 63 days. More in our guide to how long planning decisions take.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 76 Argyle Avenue, Hounslow, TW3 2LN

  P/2026/1490 Submitted 18 May 2026 50 yards away

  Certificate of Lawfulness for the proposed erection of a rear roof extension, including a hip-to-gable roof conversion and installation of three front roof windows, erection of a front porch, and erection of a single-storey detached outbuilding in the rear garden.

  Granted Lawful development Extension Loft or dormer +1 11 docs
  Small domestic

• 76 Argyle Avenue, Hounslow, TW3 2LN

  PA/2026/1491 Submitted 18 May 2026 50 yards away

  Ground floor rear extension 6.00 metres deep, maximum height of 3.00 metres, 2.82 metres high to the eaves

  Granted Prior approval Extension 4 docs

• 80 ARGYLE AVENUE, HOUNSLOW, TW3 2LN

  PA/2023/0680 Submitted 2 Mar 2023 50 yards away

  Ground floor rear extension 6.00 metres deep, maximum height 2.95 metres, 2.95 metres high to the eaves

  Granted Prior approval Extension 6 docs

• 3 HAMILTON CRESCENT, HOUNSLOW, TW3 2LJ

  P/2023/0297 Submitted 31 Jan 2023 50 yards away

  Certificate of lawfulness for the use of one room as office for taxi services

  Granted Lawful development 7 docs

• 31 PARK AVENUE, HOUNSLOW, TW3 2LY

  P/2021/2068 Submitted 24 May 2021 100 yards away

  Certificate of Lawfulness for the erection of a side and rear roof extension to the house

  Granted Lawful development Extension 9 docs

• 51 Park Avenue, Hounslow, TW3 2LY

  P/2026/0058 Submitted 9 Jan 2026 100 yards away

  100% historically approved · decision due ~6 Mar

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

  Awaiting decision Lawful development Extension Loft or dormer +1 8 docs

• P/2026/2304 Granted

  18 Clifden Road, Brentford, TW8 0PF

  Erection of a side and rear extensions.

  Received 7 Aug, published by the council 12 Aug 2026 Householder
• P/2026/2804 Awaiting decision

  128 Durham Road, Feltham, TW14 0AE

  Erection of a detached outbuilding in the rear garden following demolition of existing shed.

  Received 2 Oct, published by the council 9 Oct 2026 Householder
• P/2026/2301 Granted

  4 Glebe Street, Chiswick, W4 2BG

  Erection of a front side and rear side infill extensions with alterations to the rear elevation, a rear side first floor infill extension with replacement of windows to the rear elevation and installation of new rooflights to the existing ground floor infill extension of the house

  Received 7 Aug, published by the council 16 Aug 2026 Householder
• P/2026/1167 Granted

  20 Firs Drive, Hounslow, TW5 9TD

  Erection of part one, part two-storey side extension following demolition of existing garage and part one, part two-storey rear extension. Raising of roof ridge, erection of rear roof extensions, and installation of one front roof window.

  Received 15 Apr, published by the council 26 Jul 2026 Householder
• P/2026/2025 Granted

  1 Kneller Gardens, Isleworth, TW7 7NP

  Erection of a single storey rear and first floor side extension incorporating the conversion of the existing garage to a habitable room

  Received 8 Jul, published by the council 26 Jul 2026 Householder