1 Berkeley Mews London W1H 7AT

This site has had 3 applications since 2025: 2 approved, 0 refused.

• 25/07954/NMA Granted

  1 Berkeley Mews London W1H 7AT

  Amendments to planning permission dated 22nd May 2024 (RN 23/07126/FULL) for: Partial demolition behind partially retained facades, use of 2 Berkeley Mews as office accommodation (Class E) and amalgamation with existing office (Class E) use at 1 Berkeley Mews, associated internal and external alterations, provision of external plant and repair works all in connection with a land use swap with 28 Dorset Street (RN: 23/07147/FULL) NAMELY, to add an additional access conservation rooflight to the rear pitch of the main roof on 2 Berkeley Mews.

  Decided 18 Nov 2025 Amendments
• 25/06703/ADFULL Granted

  1 Berkeley Mews London W1H 7AT

  Details of new windows and doors pursuant to condition 9 of planning permission dated 22 May 2024 (RN: 23/07126/FULL).

  Decided 1 Oct 2025 Full applications

1. 27 Aug 2026

   Received by Westminster

2. 4 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 22 October 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 86 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.

• 5 - 6 Berkeley Mews London W1H 7PB

  08/01511/FULL Submitted 13 Feb 2008 50 yards away

  Use of ground floor as offices, installation of new windows at ground floor level and replacement of windows at first floor level.

  Granted Full applications Windows or glazing 15 docs

• 5 - 6 Berkeley Mews London W1H 7PB

  06/00159/FULL Submitted 9 Jan 2006 50 yards away

  Use of ground floor of 6 Berkeley Mews as offices and alterations to front ground floor elevation including replacement of garage doors with new entrance doorway and windows.

  Refused Full applications Windows or glazing 7 docs

• 1 Berkeley Mews London W1H 7AT

  25/07954/NMA Submitted 3 Nov 2025 50 yards away

  Amendments to planning permission dated 22nd May 2024 (RN 23/07126/FULL) for: Partial demolition behind partially retained facades, use of 2 Berkeley Mews as office accommodation (Class E) and amalgamation with existing office (Class E) use at 1 Berkeley Mews, associated internal and external alterations, provision of external plant and repair works all in connection with a land use swap with 28 Dorset Street (RN: 23/07147/FULL) NAMELY, to add an additional access conservation rooflight to the rear pitch of the main roof on 2 Berkeley Mews.

  Granted Amendments Loft or dormer Demolition 10 docs

• 14 Seymour Street London W1H 7HT

  26/04820/LBC Submitted 20 Jul 2026 50 yards away

  90% historically approved · decision due ~14 Sep

  Replacement of the existing roof asphalt roof to the rear terrace of the ground floor flat with bitumen roofing felt including porcelain paving tiles on pedestals.

  Decided Heritage and listed buildings 14 docs

• 30 Portman Square London W1H 7BH

  25/07308/TELNOT Submitted 30 Sep 2025 50 yards away

  Proposed 2No. 300 to be added to the stub mast headframe (C/L 34.50m AGL). Proposed 6No. antennas to be added to headframe and 3No existing antennas to be removed (top of proposed and existing antennas 37.60m AGL). Proposed 15No. RRUs to replaced existing 9No. RRUs. Existing equipment room to be upgraded internally

  Decided Telecoms

• Flat 3 7 New Quebec Street London W1H 7RH

  26/05457/LBC Submitted 11 Aug 2026 50 yards away

  90% historically approved · decision due ~17 Nov

  Internal refurbishment and new boiler flue to rear elevation.

  Awaiting decision Heritage and listed buildings

• 26/05984/FULL Decided

  41 Sutherland Street London SW1V 4JX

  Replacement of front, side and rear windows with double glazed timber framed sash windows and replacement of a door with a double glazed timber framed door.

  Received 2 Sep, published by the council 11 Sep 2026 Full applications
• 26/06134/FULL Decided

  Flat 10H Hyde Park Mansions Cabbell Street London NW1 5BG

  Replacement of front and rear second floor level windows with slim-profile double-glazed panels, retaining the existing window and door frames.

  Received 8 Sep, published by the council 15 Sep 2026 Full applications
• 26/07258/FULL Awaiting decision

  16A Croxley Road London W9 3HL

  Installation of air to air heat pumps to offices and bedrooms.

  Received 22 Oct, published by the council 23 Oct 2026 Full applications
• 26/07193/FULL Awaiting decision

  98 Victoria Street London SW1E 5JL

  Shopfront alterations. (Linked with 26/07194/ADV)

  Received 21 Oct, published by the council 22 Oct 2026 Full applications
• 26/07187/FULL Awaiting decision

  Ground Floor Flat 151 Portnall Road London W9 3BN

  Erection of a single storey rear extension.

  Received 21 Oct, published by the council 22 Oct 2026 Full applications