96 ROSEMARY AVENUE, HOUNSLOW, TW4 7JG

1. 9 Mar 2023

   Received by Hounslow

2. 4 May 2023

   Decision issued: GRANTED (FULL PLANNING PERMISSION NOT REQUIRED)

3. 10 Sep 2026

   Added to PlanIndex

Hounslow granted permission on 4 May 2023, 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.

• 104 Rosemary Avenue, Hounslow, TW4 7JG

  P/2026/1947 Submitted 1 Jul 2026 22m away

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

  Granted Lawful development Extension Loft or dormer +1 6 docs

• 104 Rosemary Avenue, Hounslow, TW4 7JG

  PA/2026/2415 Submitted 24 Aug 2026 22m away

  91% historically approved · decision due ~19 Oct

  Ground floor rear extension 6.00 metres deep, maximum height 3.25 metres, 3.00 metres high to the eaves.

  Awaiting decision Prior approval Extension 3 docs

• 79 ROSEMARY AVENUE, HOUNSLOW, TW4 7JQ

  P/2019/3969 Submitted 31 Oct 2019 37m away

  Erection of a two storey side extension and conversion from a single family dwelling into two 1-bed residential units

  Refused Full applications Extension 12 docs
  Domestic

• 1 IVANHOE ROAD, HOUNSLOW, TW4 7JH

  P/2021/2221 Submitted 4 Jun 2021 67m away

  Erection of a side extension to existing rear roof extension with one front roof window.

  Refused Householder Extension Windows or glazing 7 docs
  Domestic

• 14 Manor Avenue, Hounslow, TW4 7JR

  P/2025/0359 Submitted 5 Feb 2025 79m away

  Lawful development certificate existing for the continue use of the outbuilding as a self-contained unit

  Withdrawn Lawful development 3 docs

• 72 Rosemary Avenue, Hounslow, TW4 7JG

  P/2025/2595 Submitted 26 Aug 2025 95m away

  Erection of single storey detached outbuilding to use as a gym, store and play room in the garden.

  Granted Householder 9 docs
  Small domestic

• P/2026/2118 Granted

  54 Amhurst Gardens, Isleworth, TW7 6AJ

  Certificate of lawfulness for the proposed erection of a rear roof extension with front roof windows.

  Received 20 Jul, published by the council 26 Jul 2026 Lawful development
• P/2026/2580 Awaiting decision

  50B Paxton Road, Chiswick, London, W4 2QX

  Certificate of lawfulness for the existing use of a first floor self contained flat.

  Received 10 Sep, published by the council 17 Sep 2026 Lawful development
• P/2026/2332 Granted

  43 Dawes Avenue, Isleworth, TW7 7JS

  Certificate of Lawfulness for the proposed hip to gable conversion, front roof lights and erection of a rear roof extension to the house.

  Received 12 Aug, published by the council 16 Aug 2026 Lawful development
• P/2026/2089 Granted

  18 Central Avenue, Hounslow, TW3 2QH

  Certificate of lawfulness for the existing use of the rear extension as a self contained flat.

  Received 17 Jul, published by the council 26 Jul 2026 Lawful development
• P/2026/2566 Awaiting decision

  109 Wood Lane, Isleworth, TW7 5EG

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

  Received 9 Sep, published by the council 17 Sep 2026 Lawful development