20, Adelaide Terrace Great West Road, Brentford, TW8 9PQ

1. 21 Jul 2026

   Received by Hounslow

2. 2 Sep 2026

   Added to PlanIndex

The applicant withdrew this application before the council decided it, so it carries no planning weight and no fee refund is automatic. Withdrawal often follows officer feedback that a refusal was likely.

The applicant is free to submit a revised application at any time, and many withdrawn schemes return in amended form, so the site is worth watching if the proposal affected you.

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

• 20, Adelaide Terrace Great West Road, Brentford, TW8 9PQ

  P/2026/2208 Submitted 29 Jul 2026 0m away

  Erection of a single storey rear and side extension.

  Granted Householder Extension 6 docs
  Small domestic

• 40, Adelaide Terrace Great West Road, Brentford, TW8 9PQ

  P/2025/3800 Submitted 22 Dec 2025 48m away

  Erection of a single storey part rear and a part rear infill extension to allow conversion of the house into two self contained flats

  Granted Full applications New dwelling Extension 11 docs
  Small domestic

• 45 Eastbourne Road, Brentford, TW8 9PF

  PA/2024/3754 Submitted 12 Nov 2024 75m away

  Ground floor rear extension 5.40 metres deep, maximum height of 3.40 metres, 2.70 metres high to the eaves

  Granted Prior approval Extension 7 docs

• 24 YORK ROAD, BRENTFORD, TW8 0QP

  P/2021/2517 Submitted 21 Jun 2021 79m away

  Erection of a single storey rear infill and rear extension to the existing outrigger.

  Granted Householder Extension 8 docs
  Small domestic

• 92 -94 Windmill Road, Brentford, TW8 9NA

  P/2026/2220 Submitted 30 Jul 2026 116m away

  77% historically approved · decision due ~25 Sep

  Installation of two externally illuminated banner signs.

  Awaiting decision Advertising 10 docs

• 92 Windmill Road, Brentford, TW8 9NA

  P/2025/3788 Submitted 22 Dec 2025 116m away

  Variation of Condition 11 (Cycle Parking) to re-provide basement floor car parking bay nine as implied by Planning Permission P/2017/0598 and Condition 14 (Car Parking) to reduce the number of secured cycle parking spaces from thirty one to nineteen and alter the layout and design of cycle parking facilities of Planning Permission P/2017/0598 approved 24/08/2018 by Planning Appeal APP/F5540/W/17/3186406 for the 'Erection of a part three, part four and part five storey building comprising a ground floor office/ showroom with the creation of nine residential flats and associated parking spaces'.

  Refused Conditions New dwelling 8 docs

• P/2026/2033 Granted

  3 Benedict Drive, Feltham, TW14 8JH

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

  8 Jul 2026 Lawful development
• P/2026/2027 Granted

  115 Northumberland Crescent, Feltham, TW14 9SP

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

  8 Jul 2026 Lawful development
• P/2026/2009 Granted

  3 Brainton Avenue, Feltham, TW14 0AZ

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

  7 Jul 2026 Lawful development
• P/2026/2014 Granted

  82 Sussex Avenue, Isleworth, TW7 6LB

  Certificate of lawfulness for the proposed erection of a rear roof extension, a porch to the front of the house, and a front roof window.

  7 Jul 2026 Lawful development
• P/2026/2473 Awaiting decision

  16 Somerset Waye, Hounslow, TW5 9HG

  Certificate of lawfulness for the proposed erection of a rear roof extension with two roof windows to the front and alterations to the existing side roof from flat roof to pitched roof.

  1 Sep 2026 Lawful development