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 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 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.

• 35 Lancaster Mews London W2 3QF

  26/03593/FULL Submitted 2 Jun 2026 41m away

  87% 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 42m 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 47m 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

• Spire House Lancaster Gate London W2 3NP

  08/04991/LBC Submitted 11 Jun 2008 58m 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

• Spire House Lancaster Gate London W2 3NP

  08/04990/FULL Submitted 11 Jun 2008 58m 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 Full applications 5 docs

• 21 Spire House Lancaster Gate London W2 3NP

  07/09537/FULL Submitted 1 Nov 2007 58m away

  Single storey extension to enclose terrace of fifth floor flat, erection of new external walls to match existing, new windows and construction of flat roof with rooflights.

  Refused Full applications Extension Loft or dormer +1 21 docs
  Small domestic

• 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