10 Chapel Street London SW1X 7BY

1. 1 Sep 2026

   Received by Westminster

2. 5 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 27 October 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 60 days over the applications it decided in the last year.

This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

This page mirrors an entry on the statutory planning register that Westminster is required to keep. The published feed for this record does not state which type of application it is, which is common for older entries and for some council systems; the register entry on the council portal will say, alongside the case officer and any consultation dates.

Every planning application follows the same broad path: submission, validation, publicity, then a decision by officers or committee. Our guide to planning application types explains the common types and what each can approve.

• 17 Chapel Street London SW1X 7BY

  26/03816/ADFULL Submitted 10 Jun 2026 0m away

  89% historically approved · decision due ~5 Aug

  Details of Arboricultural method statement pursuant to condition 6 of planning permission dated 24 July 2025 (RN: 25/01676/FULL).

  Decided

• 17 Chapel Street London SW1X 7BY

  26/04885/LBC Submitted 21 Jul 2026 0m away

  90% historically approved · decision due ~15 Sep

  Erection of an additional storey at main roof level and a rear extension at lower ground floor level with terrace over and associated internal alterations (Linked with 26/04162/NMA)

  Awaiting decision Heritage and listed buildings Extension

• 10 Chapel Street London SW1X 7BY

  26/04209/ADFULL Submitted 25 Jun 2026 0m away

  89% historically approved · decision due ~20 Aug

  Detailed drawings of window at rear third floor level above the closet wing extension to match the windows in the rear closet wing extension in terms of size and detailed design and the two roof skylights must be conservation area styled rooflights, reduced in size, centrally positioned and closer to the roof ridge; detailed drawings of the new windows within the closet wing extension pursuant to Conditions 6 (parts a and b) and 7 of planning permission dated 10 July 2025 (RN:25/01535/FULL).

  Decided Extension Loft or dormer +1

• 17 Chapel Street London SW1X 7BY

  26/01389/ADFULL Submitted 4 Mar 2026 0m away

  87% historically approved · decision due ~29 Apr

  Details of windows and doors pursuant to Condition 4 of planning permission dated 24 July 2025 (RN: 25/01676/FULL). [Linked to 26/01476/ADLBC]

  Awaiting decision Full applications Windows or glazing 10 docs

• 17 Chapel Street London SW1X 7BY

  26/01476/ADLBC Submitted 4 Mar 2026 0m away

  90% historically approved · decision due ~29 Apr

  Details of new staircase to fourth floor pursuant to Condition 3 of listed building consent dated 24 July 2025 (RN: 25/01677/LBC). [Linked to 26/01389/ADFULL]

  Awaiting decision Conditions 10 docs

• 22 Chapel Street London SW1X 7BY

  26/02319/LBC Submitted 8 Apr 2026 0m away

  90% historically approved · decision due ~3 Jun

  Proposed defect remedial and waterproofing works to:- railings & stone kerb upstand, entrance portico; balcony balustrade and stucco work to elevation and columns at:- lower ground; ground and first storey levels. (Linked to 26/02318/FULL)

  Awaiting decision Heritage and listed buildings 16 docs