104 Rosemary Avenue, Hounslow, TW4 7JG

This site has had 2 applications since 2026: 1 approved, 0 refused.

• PA/2026/2415 Awaiting decision

  104 Rosemary Avenue, Hounslow, TW4 7JG

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

  Submitted 24 Aug 2026 Prior approval

1. 1 Jul 2026

   Received by Hounslow

2. 26 Jul 2026

   Added to PlanIndex

3. 17 Aug 2026

   Decision issued: GRANT

Hounslow granted permission on 17 August 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.

• 104 Rosemary Avenue, Hounslow, TW4 7JG

  PA/2026/2415 Submitted 24 Aug 2026 0m 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

• 96 ROSEMARY AVENUE, HOUNSLOW, TW4 7JG

  P/2023/0759 Submitted 9 Mar 2023 22m away

  Certificate of lawfulness for the continued use of the outbuilding as a self contained dwelling

  Granted Lawful development 12 docs
  Small domestic

• 79 ROSEMARY AVENUE, HOUNSLOW, TW4 7JQ

  P/2019/3969 Submitted 31 Oct 2019 39m 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

• 14 Manor Avenue, Hounslow, TW4 7JR

  P/2025/0359 Submitted 5 Feb 2025 75m away

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

  Withdrawn Lawful development 3 docs

• 1 IVANHOE ROAD, HOUNSLOW, TW4 7JH

  P/2021/2221 Submitted 4 Jun 2021 89m 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

• 41 Manor Avenue, Hounslow, TW4 7JN

  P/2025/3262 Submitted 28 Oct 2025 89m away

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

  Granted Lawful development Extension Loft or dormer +1 5 docs

• 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