6 Masionette First And Second Floors,Marshall Close,Hounslow,TW4 5HJ

1. 29 Jul 2026

   Received by Hounslow

2. 20 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 26 Aug 2026

   Added to PlanIndex

4. 29 Sep 2026

   Decision issued: GRANT

Hounslow granted permission on 29 September 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.

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.

• 311 Wellington Road South, Hounslow, TW4 5HL

  P/2025/2597 Submitted 26 Aug 2025 100 yards away

  Formation of a dropped kerb at front of property

  Refused Householder 5 docs
  Small domestic

• 210B WELLINGTON ROAD SOUTH, HOUNSLOW, TW4 5JL

  P/2022/4097 Submitted 23 Dec 2022 100 yards away

  Certificate of lawfulness for change within Class C3 from dwellinghouse (C3a) to supported housing (C3b)

  Granted Lawful development 8 docs
  Domestic

• 5 ROSEHEATH ROAD, HOUNSLOW, TW4 5HH

  P/2021/2140 Submitted 1 Jun 2021 150 yards away

  Certificate of Lawfulness for the proposed erection of a rear roof extension incorporating hip to gable conversion and two front roof windows to the house

  Granted Lawful development Extension Loft or dormer +1 5 docs

• 196 Wellington Road South, Hounslow, TW4 5JL

  P/2026/1952 Submitted 1 Jul 2026 150 yards away

  Certificate of lawfulness for the proposed replacement of like for like windows and external doors, external wall insulation with a rendered finish to match the existing rendered finish, new main roof mounted photovoltaic solar panel array and battery storage to the House in Multiple Occupation.

  Granted Lawful development Windows or glazing 8 docs

• 66 BERESFORD GARDENS, HOUNSLOW, TW4 5HW

  P/2021/2283 Submitted 8 Jun 2021 150 yards away

  Certificate of Lawfulness for the proposed erection of a rear roof extension incorporating three front roof windows to the house

  Granted Lawful development Extension Windows or glazing 5 docs

• 17 Roseheath Road,Hounslow,TW4 5HH

  P/2026/2548 Submitted 8 Sep 2026 150 yards away

  100% historically approved · decision due ~3 Nov

  Certificate of Lawfulness for the existing use as two self contained flats at ground and first floor

  Awaiting decision Lawful development New dwelling 5 docs

• 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