51 Park Avenue, Hounslow, TW3 2LY

This site has had 2 applications since 2024: 1 approved, 0 refused.

• P/2024/3835 Granted

  51 Park Avenue, Hounslow, TW3 2LY

  Erection of a single storey side and rear extension

  Decided 20 Jan 2025 Householder

1. 9 Jan 2026

   Received by Hounslow

2. 12 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 6 March 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 lawful development applications in a median of 56 days. More in our guide to how long planning decisions take.

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.

• 51 Park Avenue, Hounslow, TW3 2LY

  P/2024/3835 Submitted 16 Nov 2024 50 yards away

  Erection of a single storey side and rear extension

  Granted Householder Extension 15 docs
  Small domestic

• 133, Argyle Avenue, Hounslow, TW3 2LL

  PA26/1328 Submitted 15 Apr 2026 50 yards away

  P/2026/117 - Erection of a first floor side extension above the existing ground floor side extension.

  Granted Outline Extension 2 docs

• 44 Park Avenue, Hounslow TW3 2LX

  PA26/0488 Submitted 12 Feb 2026 100 yards away

  Lawful development certificate for the existing rear roof dormer, hip-to-gables and 4no. front rooflights.

  Granted Lawful development Loft or dormer 10 docs

• 80 ARGYLE AVENUE, HOUNSLOW, TW3 2LN

  PA/2023/0680 Submitted 2 Mar 2023 100 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

• 58 Wills Crescent Whitton Hounslow TW3 2JB

  21/1772/HOT Submitted 17 May 2021 100 yards away

  single storey side and rear extension following removal of existing side garage

  Granted Householder Extension 9 docs
  Small domestic

• 76 Argyle Avenue, Hounslow, TW3 2LN

  P/2026/1490 Submitted 18 May 2026 100 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

• 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