23 Grafton Street London W1S 4EY

This site has had 9 applications since 2025: 3 approved, 0 refused.

• 26/06193/ADFULL Awaiting decision

  23 Grafton Street London W1S 4EY

  Details of all new windows and doors; pursuant to condition 10(B) of planning permission dated 17th June 2026 (25/01604/FULL)

  Submitted 10 Sep 2026
• 26/01670/ADFULL Awaiting decision

  23 Grafton Street London W1S 4EY

  Detailed drawings of the alterations to party walls and buttress pursuant to part conditions 10a of planning permission dated 17th June 2025 (RN 25/01604/FULL)

  Submitted 13 Mar 2026 Full applications
• 26/01669/ADLBC Awaiting decision

  23 Grafton Street London W1S 4EY

  Detailed drawings of All new windows and doors pursuant to part conditions 4b of listed building consent dated 17th June 2025 (RN 25/01605/LBC)

  Submitted 13 Mar 2026 Conditions
• 26/01033/ADFULL Granted

  23 Grafton Street London W1S 4EY

  Detailed drawings, including sections (scale 1:20 and 1:5) of new rooflight pursuant to Condition 10 (B) (part) of planning permission dated 17th June 2025 (RN: 25/01604/FULL)

  Decided 1 Apr 2026 Full applications
• 26/01025/ADLBC Granted

  23 Grafton Street London W1S 4EY

  Detailed drawings, including sections of rooflight to mansard roof pursuant to Condition 4 (B) (part) of listed building dated 17th June 2025 (RN: 25/01605/LBC)

  Decided 1 Apr 2026 Conditions
• 26/00782/FULL Awaiting decision

  23 Grafton Street London W1S 4EY

  Variation of Conditions 7 and 8 of planning permission dated 17 June 2025 (RN: 25/01604/FULL) for 'Phased development including replacement of rear basement roof slab and creation of a rear extension at ground floor. Removal of rear ground floor toilet block and external fire escape stairs. Demolition of existing, altered mansard roof and construction of a new mansard roof with dormer windows and concealed plant enclosure. Extension of existing lift to serve fourth floor. Replacement of third floor rear windows with double glazed sash windows. Minor internal reconfigurations. Continued use of ground floor as retail (Use Class E(a)) and basement, first, second, third and fourth as office (Use Class E(g))'. NAMELY, to enable the use the lower ground to fourth floor levels for either Class E(a) retail and/or Class E(g) office use.

  Submitted 10 Feb 2026 Full applications
• 26/00555/NMA Granted

  23 Grafton Street London W1S 4EY

  Amendments to planning permission dated 17 June 2025 (RN: 25/01604/FULL) for Phased development including replacement of rear basement roof slab and creation of a rear extension at ground floor. Removal of rear ground floor toilet block and external fire escape stairs. Demolition of existing, altered mansard roof and construction of a new mansard roof with dormer windows and concealed plant enclosure. Extension of existing lift to serve fourth floor. Replacement of third floor rear windows with double glazed sash windows. Minor internal reconfigurations. Continued use of ground floor as retail (Use Class E(a)) and basement, first, second, third and fourth as office (Use Class E(g)). NAMELY, to retain ground floor rear door, retain existing floor slab and rear void, retain ground-floor landing stairs in existing arrangement, and amendment of Condition 11 to require details of waste and recycling to be submitted for approval prior to occupation.

  Decided 21 Apr 2026 Amendments
• 26/00554/LBC Awaiting decision

  23 Grafton Street London W1S 4EY

  Phased development including retention of rear basement roof slab (previously proposed for demolition and replacement), infilling of void creating an internal lightwell and the creation of a rear extension at ground floor. Removal of rear ground floor toilet block and external fire escape stairs. Demolition of existing, altered mansard roof and construction of a new mansard roof with dormer windows and concealed plant enclosure. Extension of existing lift to serve fourth floor. Replacement of third floor rear windows with double glazed sash windows. Minor internal reconfigurations.

  Submitted 30 Jan 2026 Heritage and listed buildings

1. 15 Dec 2025

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 9 February 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 65 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 full applications in a median of 91 days. More in our guide to how long planning decisions take.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 23 Grafton Street London W1S 4EY

  26/01670/ADFULL Submitted 13 Mar 2026 50 yards away

  87% historically approved · decision due ~8 May

  Detailed drawings of the alterations to party walls and buttress pursuant to part conditions 10a of planning permission dated 17th June 2025 (RN 25/01604/FULL)

  Awaiting decision Full applications 12 docs

• 23 Grafton Street London W1S 4EY

  26/01669/ADLBC Submitted 13 Mar 2026 50 yards away

  90% historically approved · decision due ~8 May

  Detailed drawings of All new windows and doors pursuant to part conditions 4b of listed building consent dated 17th June 2025 (RN 25/01605/LBC)

  Awaiting decision Conditions Windows or glazing 13 docs

• 23 Grafton Street London W1S 4EY

  26/00782/FULL Submitted 10 Feb 2026 50 yards away

  87% historically approved · decision due ~7 Apr

  Variation of Conditions 7 and 8 of planning permission dated 17 June 2025 (RN: 25/01604/FULL) for 'Phased development including replacement of rear basement roof slab and creation of a rear extension at ground floor. Removal of rear ground floor toilet block and external fire escape stairs. Demolition of existing, altered mansard roof and construction of a new mansard roof with dormer windows and concealed plant enclosure. Extension of existing lift to serve fourth floor. Replacement of third floor rear windows with double glazed sash windows. Minor internal reconfigurations. Continued use of ground floor as retail (Use Class E(a)) and basement, first, second, third and fourth as office (Use Class E(g))'. NAMELY, to enable the use the lower ground to fourth floor levels for either Class E(a) retail and/or Class E(g) office use.

  Awaiting decision Full applications Extension Loft or dormer +2 13 docs

• 23 Grafton Street London W1S 4EY

  26/01033/ADFULL Submitted 18 Feb 2026 50 yards away

  Detailed drawings, including sections (scale 1:20 and 1:5) of new rooflight pursuant to Condition 10 (B) (part) of planning permission dated 17th June 2025 (RN: 25/01604/FULL)

  Granted Full applications Loft or dormer 10 docs

• 23 Grafton Street London W1S 4EY

  26/01025/ADLBC Submitted 17 Feb 2026 50 yards away

  Detailed drawings, including sections of rooflight to mansard roof pursuant to Condition 4 (B) (part) of listed building dated 17th June 2025 (RN: 25/01605/LBC)

  Granted Conditions Loft or dormer 10 docs

• 23 Grafton Street London W1S 4EY

  26/06193/ADFULL Submitted 10 Sep 2026 50 yards away

  89% historically approved · decision due ~5 Nov

  Details of all new windows and doors; pursuant to condition 10(B) of planning permission dated 17th June 2026 (25/01604/FULL)

  Awaiting decision Windows or glazing

• 26/06295/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Installation of a new shopfront.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications
• 26/06297/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Alterations to rear elevation at basement level comprising repolacement window and installation of double opening door.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications
• 26/06234/FULL Awaiting decision

  40 Grosvenor Place London SW1X 7HJ

  Use of lower ground floor of Unit 3 and ground floor of Unit 2 as gym (Class E(d)) and/ or office (Class E(g))

  Received 11 Sep, published by the council 18 Sep 2026 Full applications
• 26/06249/FULL Awaiting decision

  53 Wimpole Street London W1G 8YH

  Removal and Installation of external rear air condensers and associated pipe work to ground floor, including internal works to ground and first floor. (Linked with 26/06250/LBC)

  Received 11 Sep, published by the council 18 Sep 2026 Full applications
• 26/03576/FULL Decided

  15A Devonshire Terrace London W2 3DW

  Erection of an infill extension to basement courtyard to form new bedroom and internal alterations. (Linked with 26/03577/LBC)

  Received 1 Jun, published by the council 11 Sep 2026 Full applications