Basement And Ground Floor 9 Mount Street London W1K 3NG

1. 29 Jul 2026

   Received by Westminster

2. 9 Aug 2026

   Added to PlanIndex

3. 11 Aug 2026

   Status changed to Decided

   Previously Pending.

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

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.

• Basement And Ground Floor 9 Mount Street London W1K 3NG

  26/00238/ADV Submitted 16 Jan 2026 0m away

  Display of non illuminated fascia sign (90mm x 700mm) and an awning sign.

  Decided Advertising 4 docs

• Basement And Ground Floor 9 Mount Street London W1K 3NG

  26/04068/ADLBC Submitted 19 Jun 2026 0m away

  89% historically approved · decision due ~14 Aug

  Details/specifications of the new condensors pursuant to Condition 5 of listed building dated 28 May 2026 (26/00240/LBC)

  Decided

• Basement And Ground Floor 9 Mount Street London W1K 3NG

  26/04801/ADLBC Submitted 17 Jul 2026 0m away

  89% historically approved · decision due ~11 Sep

  Details at 1:1 of new grills, sample photographs along with materiality, Details at 1:10 of new stair balustrades, Details of lighting demonstrating where on drawings ; Details of new modern flooring and joinery showing their relationship in conjunction with any existing historic fabric, demonstrating that their installation would not cause harm, pursuant to the partial discharge of condition 4 (Parts A,B,C and E only) of listed building consent dated 28th May 2026(RN: 26/00240/LBC)

  Awaiting decision

• Basement And Ground Floor 9 Mount Street London W1K 3NG

  26/04120/ADFULL Submitted 23 Jun 2026 0m away

  89% historically approved · decision due ~18 Aug

  Details/specifications of the new condensors pursuant to Condition 6 of planning permission dated 28 May 2026 (26/00239/FULL).

  Decided

• Basement And Ground Floor 9 Mount Street London W1K 3NG

  26/00240/LBC Submitted 16 Jan 2026 8m away

  90% historically approved · decision due ~13 Mar

  Installation of external plant, replacement awning, new shop front signage and reconfiguration of the lower ground and ground floor including new flooring, joinery and associated works in connection with the refurbishment of the retail unit. (Linked to 26/00239/FULL)

  Awaiting decision Heritage and listed buildings Windows or glazing 30 docs

• Basement And Ground Floor 9 Mount Street London W1K 3NG

  26/00239/FULL Submitted 16 Jan 2026 8m away

  87% historically approved · decision due ~13 Mar

  Installation of external plant and reconfiguration of the lower ground and ground floor including new flooring, joinery and associated works in connection with the refurbishment of the retail unit. (Linked to 26/00240/LBC)

  Awaiting decision Full applications 32 docs