6 Wilton Street London SW1X 7AF

This site has had 4 applications since 2026.

• 26/01274/LBC Awaiting decision

  6 Wilton Street London SW1X 7AF

  Removal of existing roof and rear third floor mansard and replacement with fourth floor mansard extension; replacement of front third floor windows and new rear third floor windows; internal alterations. [Linked to 26/01273/FULL]

  Submitted 27 Feb 2026 Heritage and listed buildings
• 26/01240/LBC Awaiting decision

  6 Wilton Street London SW1X 7AF

  Partial demolition at rear basement, ground and closet wing; extension at rear basement & ground floor with terrace and lantern rooflight over; rebuilding of closet wing with additional storey; replacement windows at rear; internal alterations. (Linked to 26/01239/FULL)

  Submitted 26 Feb 2026 Heritage and listed buildings
• 26/01239/FULL Awaiting decision

  6 Wilton Street London SW1X 7AF

  Partial demolition at rear basement, ground and closet wing; extension at rear basement & ground floor with terrace and lantern rooflight over; rebuilding of closet wing with additional storey; replacement windows at rear. (Linked to 26/01240/LBC)

  Submitted 26 Feb 2026 Full applications

1. 27 Feb 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 24 April 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.

• 26/01274/LBC Awaiting decision

  6 Wilton Street London SW1X 7AF

  Removal of existing roof and rear third floor mansard and replacement with fourth floor mansard extension; replacement of front third floor windows and new rear third floor windows; internal alterations. [Linked to 26/01273/FULL]

  Submitted 27 Feb 2026 Heritage and listed buildings

1 later application on the register refers to this one:

• 26/01274/LBC Awaiting decision

  6 Wilton Street London SW1X 7AF

  Removal of existing roof and rear third floor mansard and replacement with fourth floor mansard extension; replacement of front third floor windows and new rear third floor windows; internal alterations. [Linked to 26/01273/FULL]

  Submitted 27 Feb 2026 Heritage and listed buildings

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 89 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.

• 6 Wilton Street London SW1X 7AF

  26/01274/LBC Submitted 27 Feb 2026 0m away

  90% historically approved · decision due ~24 Apr

  Removal of existing roof and rear third floor mansard and replacement with fourth floor mansard extension; replacement of front third floor windows and new rear third floor windows; internal alterations. [Linked to 26/01273/FULL]

  Awaiting decision Heritage and listed buildings Extension Loft or dormer +1 38 docs

• 6 Wilton Street London SW1X 7AF

  26/01240/LBC Submitted 26 Feb 2026 3m away

  90% historically approved · decision due ~23 Apr

  Partial demolition at rear basement, ground and closet wing; extension at rear basement & ground floor with terrace and lantern rooflight over; rebuilding of closet wing with additional storey; replacement windows at rear; internal alterations. (Linked to 26/01239/FULL)

  Awaiting decision Heritage and listed buildings Extension Loft or dormer +2 27 docs

• 6 Wilton Street London SW1X 7AF

  26/01239/FULL Submitted 26 Feb 2026 4m away

  87% historically approved · decision due ~23 Apr

  Partial demolition at rear basement, ground and closet wing; extension at rear basement & ground floor with terrace and lantern rooflight over; rebuilding of closet wing with additional storey; replacement windows at rear. (Linked to 26/01240/LBC)

  Awaiting decision Full applications Extension Loft or dormer +2 29 docs

• 13 Wilton Street London SW1X 7AF

  22/04803/ADLBC Submitted 15 Jul 2022 11m away

  Detailed assessment of the causes and effects of the damage at the balcony and a detailed written specification of structural repairs proposed at the balcony pursuant to condition 3(c) of listed building permission dated 26 March 2018 (18/01355/LBC).

  Granted Conditions 6 docs

• 3 Wilton Street London SW1X 7AF

  25/06551/LBC Submitted 12 Sep 2025 16m away

  Installation of security bars to front windows of basement and ground floors.

  Refused Heritage and listed buildings Windows or glazing 21 docs

• 3 Wilton Street London SW1X 7AF

  25/08751/LBC Submitted 1 Dec 2025 16m away

  Erection of a mansard roof extension and internal alterations to third floor level.

  Refused Heritage and listed buildings Extension Loft or dormer 15 docs

• 26/06295/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Installation of a new shopfront.

  15 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.

  15 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))

  11 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)

  11 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)

  1 Jun 2026 Full applications