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Planning application

26 - 28 Mount Row London W1K 3SQ

Awaiting decision Westminster 26/06570/FULL Full applications

Works: Extension Roofing

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Rear extension to the building, including creation of balconies at first to fourth floor levels and a new roof terrace, external alterations to the building including new cladding to front and rear facades, together with internal reconfiguration and refurbishment, provision of end of trip facilities in place of basement car park, roof top plant equipment, and other associated works.

As published by the council, reference 26/06570/FULL

Application record

Reference
26/06570/FULL
Category
Full applications
Status
Pending
Received
24 Sep 2026
Validated
24 Sep 2026
Postcode
W1K 3SQ

Site history

Applications at this address on the Westminster register

This site has had 2 applications since 2020: 1 approved, 0 refused.

  • 20/07964/ADV Granted

    26-28 Mount Row London W1K 3SQ

    Display of an internally illuminated (letters only) projecting sign measuring 0.52m x 0.78m.

    Decided 22 Dec 2020 Advertising

Timeline

Dates from the published record

  1. 24 Sep 2026

    Received by Westminster

  2. 1 Oct 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 19 November 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.

What happens while it is decided

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.

About full applications

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.

Nearby applications

Within 0.3 miles

  • 30 Mount Row London W1K 3SH

    20/05838/ADFULL Submitted 17 Sep 2020 50 yards away

    Detailed drawing of each different type of window, external door and perforated screens at front fifth floor level pursuant to conditions 11 and 25 of planning permission dated 29th November 2017 (RN:17/06081).

    Granted Full applications Windows or glazing 7 docs

  • 30 Mount Row London W1K 3SH

    20/05841/ADFULL Submitted 17 Sep 2020 50 yards away

    Details of the installation of 8 off-street cycle parking spaces for the residential part of the development, cycle parking spaces for the retail part of the development and the location of the off-street cycle parking for the retail part of the development pursuant to conditions 4 and 5 of planning permission dated 29th November 2011 (RN:17/06081).

    Granted Full applications 8 docs

  • 30 Mount Row London W1K 3SH

    20/05837/ADFULL Submitted 17 Sep 2020 50 yards away

    Details pursuant to condition 8 of planning permission dated 29 November 2017 (RN:17/06081); Namely details of how waste is going to be stored on the site and how materials for recycling will be stored separately for the residential part of the development.

    Granted Full applications 12 docs

  • 30 Mount Row London W1K 3SH

    20/05839/ADFULL Submitted 17 Sep 2020 50 yards away

    Details samples of the facing materials, including glazing, and elevations and roof plans annotated to show where the materials are to be located; panel of brickwork which shows the colour, texture, face bond and pointing pursuant to conditions 10 and 14 of planning permission dated 29 November 2017 (RN:17/06081)

    Granted Full applications Windows or glazing 8 docs

  • 26-28 Mount Row London W1K 3SQ

    20/07964/ADV Submitted 14 Dec 2020 50 yards away

    Display of an internally illuminated (letters only) projecting sign measuring 0.52m x 0.78m.

    Granted Advertising 15 docs

  • Flat 2 49 Grosvenor Square London W1K 3EP

    25/05833/FULL Submitted 18 Aug 2025 50 yards away

    Installation of two air condenser units at roof level and two ventilation grills in rear first floor windows.

    Granted Full applications Windows or glazing 32 docs

In Westminster

  • 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