P/2026/1321

1. 30 Apr 2026

   Received by Hounslow

2. 23 Jun 2026

   Decision issued: GRANT

3. 26 Jul 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• P/2024/3283 Granted

  Herons Place, Isleworth TW7 7BE

  Works to trees in a Conservation Area: T8 – Horse Chestnut (Aesculus hippocastanum), northern boundary, reduce to approximately 1.5m. Final height 9m & final spread 8m. T13 - Horse Chestnut (Aesculus hippocastanum), northern boundary, remove lowest limb on south side. T14 - Common Lime (Tilia x europaea), north eastern boundary, remove 2-3m of new growth. Final height 4m & final spread 3m. T18 - Weeping Willow (Salix babylonica), eastern boundary, re-pollard and all regrowth removed. T28 - Crab Apple (Malus sylvestris), outside the front of No. 33, reduce crown by approximately 3m. Final height 4.5m and spread 4m. T30 - Whitebeam (Sorbus aria), corner plot part of the open greenspace adjacent to the road in the middle of the site, fell to ground. T32 - Whitebeam (Sorbus aria), corner plot part of the open greenspace adjacent to the road in the middle of the site, lift crown to give 5m clearance. T33 - Honey locust (Gleditsia triacanthos), corner plot part of the open greenspace adjacen... read more

  1 Oct 2024 70m away Trees
• P/2026/0285 Withdrawn

  Herons Place, Isleworth, TW7 7BE

  Works to tree within TPO 377. T29 Sessile Oak. (Quercus petraea). Remove previously abrading limb high in crown to the south approximately 23 centimetres in diameter. Reduce low sinuous limb to the northwest - back to large sucker growth just beyond kink in limb at approximately 4.5 metres from trunk. Installing three x Cobra type cable braces to support heavy lateral limbs.

  29 Jan 2026 70m away Trees
• P/2024/3237 Granted

  9 Herons Place, Isleworth, TW7 7BE

  Installation of one front and one rear roof window

  26 Sep 2024 92m away Householder
• PAC/2025/3121 Withdrawn

  Saracen House Swan Street, Isleworth TW7 6RJ

  Prior Approval for the change of use of Saracen House from offices (Use Class E) to a residential (Use Class C3) compromising of 12 flats with associated cycle and refuse storage.

  15 Oct 2025 93m away Outline
• PAC/2026/1120 Granted

  Saracen House, Swan Street, Isleworth, TW7 6RJ

  Prior approval for the change of use of the first and second floors only of Saracen House from office use (Use Class E) to nine self contained flats (Use Class C3)

  2 Apr 2026 103m away Outline
• P/2023/0172 Withdrawn

  6 NORTHUMBERLAND HOUSE LOWER SQUARE, ISLEWORTH, TW7 6RL

  Installation of two modern passive vapour vents

  18 Jan 2023 156m away Heritage and listed buildings

• P/2026/2219 Awaiting decision

  Great West House,993 Great West Road,Brentford,TW8 9DF

  Certificate of lawfulness for the installation of two electricity substations.

  29 Jul 2026 Lawful development
• P/2026/1626 Granted

  2 Oak Avenue, Hounslow, TW5 9EB

  Certificate of lawfulness for the proposed erection of a rear roof extension with hip to gable conversion and the addition of one front roof light.

  2 Jun 2026 Lawful development
• P/2026/2168 Awaiting decision

  49 Durham Road, Feltham, TW14 0AG

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

  24 Jul 2026 Lawful development
• P/2026/1448 Granted

  13 Orchard Avenue, Hounslow, TW5 0DU

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

  13 May 2026 Lawful development
• P/2026/1682 Granted

  133 Swan Road, Feltham, TW13 6LT

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

  5 Jun 2026 Lawful development