48 St Marys Crescent, Isleworth, TW7 4NA

1. 7 Mar 2025

   Received by Hounslow

2. 4 Apr 2025

   Validated

   Checked as complete and ready for consideration.

3. 26 Jul 2026

   Added to PlanIndex

The applicant withdrew this application before Hounslow decided it, and is free to submit a revised scheme at any time. 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.

• 54 St Marys Crescent, Isleworth, TW7 4NA

  P/2026/2372 Submitted 17 Aug 2026 50 yards away

  77% historically approved · decision due ~12 Oct

  Erection of a single storey rear infill extension, conversion of garage into a habitable room, increase in roof height to allow creation of additional bedrooms, front porch extension and repositioning of the existing bay window to the house

  Awaiting decision Householder Extension Windows or glazing 8 docs
  Small domestic

• 58 ST MARYS CRESCENT, ISLEWORTH, TW7 4NA

  P/2021/3034 Submitted 26 Jul 2021 50 yards away

  T1. Eucalyptus - Reduce three lowest limbs overhanging shed back to the boundary line. T2. Holly - Reduce all overhanging lateral growth back to the boundary line.

  Granted Trees 4 docs
  Small domestic

• 40 St Marys Crescent, Isleworth, TW7 4NA

  P/2026/0242 Submitted 26 Jan 2026 50 yards away

  Works to trees in a Conservation Area. Cypress (T1). Reduce branches overhanging boundary fence line by up to 3 metres. Cypress (T2). Reduce branches overhanging boundary fence line by up to 4 metres.

  Granted Trees 4 docs
  Small domestic

• 38 St Marys Crescent, Isleworth, TW7 4NA

  P/2025/3827 Submitted 2 Jan 2026 50 yards away

  T1. Hornbeam. Crown lift by removing low branches to 5 metres. Cut back overhang to lawn area by up to 3 metres to reduce overhang and shading. T2. Hawthorn. Crown lift by removing low branches to 4 metres. Cut back overhang to lawn area by up to 2 metres to reduce overhang and shading and balance asymmetric crown. T3. Yew. Fell to ground level. T4. Sycamore. Crown lift by removing low branches to 5 metres (retaining larger southern limb of approximately 160mm diameter and growing towards pergola). Remove crossing branches. Cut back upper crown overhang to pathway by up to 2.5 metres.

  Granted Trees 5 docs

• 255 Jersey Road, Isleworth, TW7 4RF

  P/2025/0505 Submitted 17 Feb 2025 150 yards away

  Works to trees in a Conservation Area - 1 XT1 Sycamore reduce the lateral spread by approximately 2m and 1 X T2 Sycamore reduce the lateral spread by approximately 2m

  Withdrawn Trees 4 docs

• 251 Jersey Road, Isleworth, TW7 4RF

  P/2026/1535 Submitted 21 May 2026 150 yards away

  Erection of single-storey rear and side extensions following demolition of the existing rear extension, new front boundary treatment and a replacement fence to the rear boundary adjoining No. 253.

  Refused Householder Extension Demolition 9 docs
  Small domestic

• P/2026/2651 Awaiting decision

  3 Clayponds Avenue, Brentford, TW8 9QQ

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

  Received 17 Sep, published by the council 20 Sep 2026 Lawful development
• P/2026/2627 Awaiting decision

  23 Elmgate Avenue, Feltham, TW13 7BU

  Certificate of lawfulness for the proposed change of use from residential house Class C3a to a residential home for up to 3 young people aged between 7 and 18 Class C2

  Received 15 Sep, published by the council 20 Sep 2026 Lawful development
• P/2026/2631 Awaiting decision

  17 Northumberland Avenue, Isleworth, TW7 5HZ

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

  Received 15 Sep, published by the council 20 Sep 2026 Lawful development
• P/2026/2606 Awaiting decision

  35 Jersey Road, Hounslow, TW3 4BQ

  Certificate of Lawfulness for the Existing Continued Use as a Five Bedroom House in Multiple Occupation (HMO).

  Received 14 Sep, published by the council 20 Sep 2026 Lawful development
• P/2026/2609 Awaiting decision

  47 Sutton Road, Hounslow, TW5 0PN

  Certificate of lawfulness for the proposed erection of a detached outbuilding in the rear garden.

  Received 14 Sep, published by the council 20 Sep 2026 Lawful development