26 Lancaster Mews London W2 3QE

This site has had 2 applications since 2026: 0 approved, 1 refused.

• 26/00542/FULL Refused

  26 Lancaster Mews London W2 3QE

  Variation of Condition 1 of planning permission dated 17 June 2026 (RN: 25/02702/FULL) for 'Removal of the dormer extension at roof level, construction of a mansard roof extension and alterations to front elevation including new and replacement windows, juliette balcony, entrance door and garage doors and conversion of garage'. NAMELY to amend the approved drawings to allow amendment of first-floor window proportions, removal of Juliette balcony, and the use of reclaimed London stock brick in place of painted brickwork.

  Decided 13 Apr 2026 Full applications

1. 6 Feb 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 3 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 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 full applications in a median of 119 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.

• 35 Lancaster Mews London W2 3QF

  26/03593/FULL Submitted 2 Jun 2026 50 yards away

  88% historically approved · decision due ~28 Jul

  Excavation of basement level, replacement of existing rooflight with proposed rooflight, alteration to garage doors and associated external and internal alterations to mews dwellinghouse.

  Awaiting decision Full applications Loft or dormer 20 docs
  Domestic

• 26 Lancaster Mews London W2 3QE

  26/00542/FULL Submitted 30 Jan 2026 50 yards away

  Variation of Condition 1 of planning permission dated 17 June 2026 (RN: 25/02702/FULL) for 'Removal of the dormer extension at roof level, construction of a mansard roof extension and alterations to front elevation including new and replacement windows, juliette balcony, entrance door and garage doors and conversion of garage'. NAMELY to amend the approved drawings to allow amendment of first-floor window proportions, removal of Juliette balcony, and the use of reclaimed London stock brick in place of painted brickwork.

  Refused Full applications Extension Loft or dormer +1 10 docs

• 36 Lancaster Mews London W2 3QF

  25/09361/ADFULL Submitted 25 Dec 2025 50 yards away

  Details of Glass and rear window restrictor, glass to rear rooflight, signed appendix A and pre-demolition audit pursuant to conditions 4,5,12 and 14 of planning permission dated 5th December 2024 (RN: 24/05136/FULL).

  Granted Full applications Loft or dormer Demolition +1 16 docs

• Flat A 2 Craven Terrace London W2 3QD

  26/06197/LBC Submitted 10 Sep 2026 50 yards away

  90% historically approved · decision due ~17 Nov

  Replacement of existing timber windows and doors at rear with new aluminium double glazed doors and windows, new roof light (AOV). Internal re configuration of the flat at third and 4th floor. (Linked to 26/06196/FULL)

  Awaiting decision Heritage and listed buildings Loft or dormer Roofing +1

• Flat A 2 Craven Terrace London W2 3QD

  26/06196/FULL Submitted 10 Sep 2026 50 yards away

  88% historically approved · decision due ~17 Nov

  Replacement of existing timber windows and doors at rear with new aluminium double glazed doors and windows, new roof light (AOV). Internal re configuration of the flat at third and 4th floor. (Linked to 26/06197/LBC)

  Awaiting decision Full applications Loft or dormer Roofing +1

• Spire House Lancaster Gate London W2 3NP

  08/04991/LBC Submitted 11 Jun 2008 50 yards away

  Replacement mesh fencing to the main Lancaster Gate elevation with metal railings on a stone plinth to match those erected at Cleveland Gardens.

  Granted Heritage and listed buildings 2 docs

• 26/06234/FULL Decided

  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
• 26/07403/FULL Awaiting decision

  Basement Floor And Ground Floor Queen Annes House 34 Queen Anne's Gate London SW1H 9AB

  Refurbishment and enhancement of the building to facilitate its continued use as offices with ancillary residential accommodation, together with associated conservation, restoration, accessibility improvements, building services upgrades, landscaping and ancillary works. Internal and external alterations associated with the repair. (Linked with 26/07404/LBC)

  Received 30 Oct, published by the council 3 Nov 2026 Full applications
• 26/07415/FULL Awaiting decision

  39 Montagu Square London W1H 2LL

  Amalgamation of Flats 3 and 4 (Use Class C3) to form one single dwelling (Use Class C3) including associated internal reconfiguration and refurbishments, alterations to access arrangements and improvements to the existing terrace and private amenity spaces and other associated works. (Linked with 26/07416/LBC)

  Received 30 Oct, published by the council 3 Nov 2026 Full applications
• 26/06015/FULL Decided

  129 Saltram Crescent London W9 3JT

  Erection of a two-storey rear extension.

  Received 3 Sep, published by the council 11 Sep 2026 Full applications
• 26/07382/FULL Awaiting decision

  90 Gloucester Place London W1U 6HS

  Use of the building as an embassy (sui generis)

  Received 28 Oct, published by the council 2 Nov 2026 Full applications