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Planning application

123 Pall Mall London SW1Y 5EA

Awaiting decision Westminster 26/04669/FULL Full applications

Works: Extension Loft or dormer

Relates to 26/04670/LBC

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

Proposal

Partial infill of existing internal lightwell at mezzanine to fifth floors, including installation of new floors and internal façade, alterations to lightwell elevations including removal and modification of existing openings, replacement of existing rooflight, and enclosure of external escape route. (Linked to 26/04670/LBC)

As published by the council, reference 26/04669/FULL

Application record

Reference
26/04669/FULL
Category
Full applications
Status
Pending
Received
13 Jul 2026
Validated
17 Jul 2026
Postcode
SW1Y 5EA

Site history

Applications at this address on the Westminster register

This site has had 3 applications since 2026.

  • 26/05072/LBC Decided

    123 Pall Mall London SW1Y 5EA

    Internal refurbishment works and minor external alterations, including replacement and reconfiguration of modern internal finishes, partitions and fittings; refurbishment of reception, office, WC, end-of-trip and basement areas; accessibility and fire safety improvements; removal of selected suspended ceilings; replacement of entrance screens and doors; and minor alterations to the Pall Mall shopfronts.

    Submitted 28 Jul 2026 Heritage and listed buildings
  • 26/04670/LBC Awaiting decision

    123 Pall Mall London SW1Y 5EA

    Partial infill of existing internal lightwell at mezzanine to fifth floors and associated works, including installation of new floors and internal façade, alterations to lightwell elevations including removal and modification of existing openings, replacement of existing rooflight, and enclosure of external escape route. (Linked to 26/04669/FULL)

    Submitted 13 Jul 2026 Heritage and listed buildings

Timeline

Dates from the published record

  1. 13 Jul 2026

    Received by Westminster

  2. 17 Jul 2026

    Validated

    Checked as complete and ready for consideration.

  3. 25 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 11 September 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 66 days over the applications it decided in the last year.

Cases linked to this one on the register

  • 26/04670/LBC Awaiting decision

    123 Pall Mall London SW1Y 5EA

    Partial infill of existing internal lightwell at mezzanine to fifth floors and associated works, including installation of new floors and internal façade, alterations to lightwell elevations including removal and modification of existing openings, replacement of existing rooflight, and enclosure of external escape route. (Linked to 26/04669/FULL)

    Submitted 13 Jul 2026 Heritage and listed buildings

1 later application on the register refers to this one:

  • 26/04670/LBC Awaiting decision

    123 Pall Mall London SW1Y 5EA

    Partial infill of existing internal lightwell at mezzanine to fifth floors and associated works, including installation of new floors and internal façade, alterations to lightwell elevations including removal and modification of existing openings, replacement of existing rooflight, and enclosure of external escape route. (Linked to 26/04669/FULL)

    Submitted 13 Jul 2026 Heritage and listed buildings

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 91 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

  • 123 Pall Mall London SW1Y 5EA

    26/05072/LBC Submitted 28 Jul 2026 50 yards away

    90% historically approved · decision due ~22 Sep

    Internal refurbishment works and minor external alterations, including replacement and reconfiguration of modern internal finishes, partitions and fittings; refurbishment of reception, office, WC, end-of-trip and basement areas; accessibility and fire safety improvements; removal of selected suspended ceilings; replacement of entrance screens and doors; and minor alterations to the Pall Mall shopfronts.

    Decided Heritage and listed buildings

  • 123 Pall Mall London SW1Y 5EA

    26/04670/LBC Submitted 13 Jul 2026 50 yards away

    90% historically approved · decision due ~11 Sep

    Partial infill of existing internal lightwell at mezzanine to fifth floors and associated works, including installation of new floors and internal façade, alterations to lightwell elevations including removal and modification of existing openings, replacement of existing rooflight, and enclosure of external escape route. (Linked to 26/04669/FULL)

    Awaiting decision Heritage and listed buildings Extension Loft or dormer

  • 14 - 16 Cockspur Street London SW1Y 5BL

    25/08515/LBC Submitted 20 Nov 2025 50 yards away

    Installation of CCTV cameras to front and rear ground floor elevations; new intercom and access control panel to front entrance; alteration to existing rainwater pipe on rear elevation.

    Granted Heritage and listed buildings 33 docs

  • 14 - 16 Cockspur Street London SW1Y 5BL

    25/08514/FULL Submitted 20 Nov 2025 50 yards away

    Installation of CCTV cameras to front and rear ground floor elevations; new intercom and access control panel to front entrance; alteration to existing rainwater pipe on rear elevation.

    Granted Full applications 24 docs

  • 14 - 16 Cockspur Street London SW1Y 5BL

    25/06062/ADV Submitted 26 Aug 2025 50 yards away

    Display of one non-illuminated printed vinyl scaffold shroud measuring 25m x 23.5m and three non-illuminated inset advertisements each measuring 5.5m x 5.5m, for a one year period from 1 October 2025 to 1 October 2026.

    Refused Advertising 9 docs

  • 14 - 16 Cockspur Street London SW1Y 5BL

    25/08513/FULL Submitted 20 Nov 2025 50 yards away

    Installation of dry riser acess cover set into the ground in front of the Cockspur Street entrance to the building.

    Granted Full applications 22 docs

In Westminster

  • 26/06295/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Installation of a new shopfront.

    Received 15 Sep, published by the council 17 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.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06287/FULL Awaiting decision

    Barness Court 6 - 8 Westbourne Terrace London W2 3UW

    Installation of a new riser as per GW10 design comprising a single riser with 7 entries and 9 Taylor valves to be installed. (Linked with 26/06288/LBC)

    Received 14 Sep, published by the council 21 Sep 2026 Full applications
  • 26/06278/FULL Awaiting decision

    40 Wellington Road London NW8 9TJ

    Installation of a new external access ramp/slope to provide accessibility to the Barclays bank ATM.

    Received 14 Sep, published by the council 21 Sep 2026 Full applications
  • 26/06269/FULL Awaiting decision

    Maisonette Basement And Ground Floor 101 Hereford Road London W2 5BB

    Amalgamation of existing lower ground and ground floor maisonette with the first floor flat to create a single dwelling and associated internal works including creation of a staircase. (Linked with 26/06270/LBC)

    Received 14 Sep, published by the council 21 Sep 2026 Full applications