101 Third Avenue London W10 4HS

1. 16 Sep 2026

   Received by Westminster

2. 23 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 11 November 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Westminster took a median of 91 days over the applications it decided in the last year.

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided lawful development applications in a median of 106 days. More in our guide to how long planning decisions take.

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.

• 25 Marne Street London W10 4JE

  26/03566/FULL Submitted 1 Jun 2026 50 yards away

  88% historically approved · decision due ~30 Jul

  Erection of a rear single storey side infill extension at ground floor level and replacement of the existing sash windows to match original.

  Awaiting decision Full applications Extension Windows or glazing 13 docs
  Small domestic

• 25 Marne Street London W10 4JE

  26/07032/FULL Submitted 14 Oct 2026 50 yards away

  88% historically approved · decision due ~9 Dec

  Erection of a rear single storey side infill extension at ground floor level and replacement of the existing sash windows to match original.

  Awaiting decision Full applications Extension Windows or glazing
  Small domestic

• 81 Third Avenue London W10 4HU

  25/08184/TCA Submitted 10 Nov 2025 50 yards away

  TT1-T3 3 x cypress: fell

  Granted Trees 6 docs

• 1A Beethoven Street London W10 4LG

  26/07324/ADFULL Submitted 26 Oct 2026 100 yards away

  89% historically approved · decision due ~21 Dec

  Details of writing appropriate arrangements to secure measures to mitigate the potential increased demand for on-street residents car parking in the vicinity of the site pursuant to condition 3 of planning permission dated 22nd July 2025 (RN:25/03668/P3JPA)

  Awaiting decision

• 1A Beethoven Street London W10 4LG

  25/04353/ADFULL Submitted 25 Jun 2025 100 yards away

  88% historically approved · decision due ~20 Aug

  Details of appropriate arrangements to secure measures to mitigate the potential increased demand for on-street residents car parking in the vicinity of the site pursuant to condition 3 of planning permission dated 9th May 2025 (RN:25/01411/P3JPA)

  Awaiting decision Full applications 5 docs

• 1A Beethoven Street London W10 4LG

  25/05971/ADFULL Submitted 21 Aug 2025 100 yards away

  88% historically approved · decision due ~16 Oct

  Details of appropriate arrangements to secure measures to mitigate the potential increased demand for on-street residents car parking in the vicinity of the site pursuant to Condition 3 of planning permission dated 22nd July 2025 RN:25/03668/P3JPA)

  Awaiting decision Full applications 6 docs

• 26/07468/CLOPUD Awaiting decision

  14 - 16 Great Portland Street London W1W 8QW

  Confirmation the demolition of the existing outrigger structure at fifth floor level (the Proposed Works) constitutes the lawful commencement of development pursuant to the Permission.

  Received 3 Nov, published by the council 5 Nov 2026 Lawful development
• 26/07423/CLOPUD Awaiting decision

  103 Elgin Avenue London W9 2NP

  Painting of the decorative stonework, window frames and doors on the front elevation and front boundary wall

  Received 2 Nov, published by the council 4 Nov 2026 Lawful development
• 26/07454/CLOPUD Awaiting decision

  10 Stratton Street London W1J 8LG

  Changes to existing windows and doors

  Received 2 Nov, published by the council 5 Nov 2026 Lawful development
• 26/07381/CLEUD Awaiting decision

  Ground Floor Rear Flat 4 Mozart Street London W10 4LA

  Use of the ground floor rear flat as short-term visitor accommodation.

  Received 28 Oct, published by the council 5 Nov 2026 Lawful development
• 26/07339/CLOPUD Awaiting decision

  123 Victoria Street London SW1E 6DE

  Use of part of ground floor reception area within Class E including, but not limited to, a retail café (Class E(a)).

  Received 27 Oct, published by the council 30 Oct 2026 Lawful development