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Planning application

12 Berkeley Street London W1J 8DT

Granted Westminster 25/08196/FULL Full Planning Permission Application

Works: Extension Loft or dormer Windows or glazing

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Variation of Condition 1 of planning permission dated 01 July 2025 (Ref: 25/00526/FULL) for, 'Alterations to 12 Berkeley Street including replacement of mansard roof with additional storey; extension of rear elevation pitch with inset terraces; infill of lightwell at basement and ground level; reconfiguration of shopfront at ground floor level; upgrades to the building's safety and sustainability performance; and associated works'; Namely, to allow the introduction of a new second-floor terrace, elevational refinements, material alterations, and associated detailing changes as part of the permitted works. (Application under Section 73 of the Act).

As published by the council, reference 25/08196/FULL

Application record

Reference
25/08196/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
11 Nov 2025
Validated
11 Nov 2025
Decided
30 Mar 2026
Ward
West End
Decision by
Delegated Decision
Postcode
W1J 8DT

Site history

Applications at this address on the Westminster register

This site has had 2 applications since 2025: 1 approved, 0 refused.

  • 26/02941/FULL Awaiting decision

    12 Berkeley Street London W1J 8DT

    Variation of condition 1 of planning permission dated 30 March 2026 (RN: 25/08196/FULL) for Alterations to 12 Berkeley Street including replacement of mansard roof with additional storey; extension of rear elevation pitch with inset terraces; infill of lightwell at basement and ground level; reconfiguration of shopfront at ground floor level; upgrades to the building's safety and sustainability performance; and associated works' NAMELY, omission of AHU unit on roof and installation of floor-by-floor MVHR system with associated works to windows, and creation of roof terrace. (Application under Section 73 of the Act).

    Submitted 5 May 2026 Full applications

Timeline

Dates from the published record

  1. 11 Nov 2025

    Received by Westminster

  2. 30 Mar 2026

    Decision issued: Application Permitted

  3. 20 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Gerald Eve LLP Agent

909 applications on PlanIndex · across 35 councils · 98% granted

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Documents

Plans, drawings, consultee responses and the officer's report

21 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

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What this grant of permission means

Westminster granted permission on 30 March 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

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

  • 12 Berkeley Street London W1J 8DT

    26/02941/FULL Submitted 5 May 2026 50 yards away

    88% historically approved · decision due ~30 Jun

    Variation of condition 1 of planning permission dated 30 March 2026 (RN: 25/08196/FULL) for Alterations to 12 Berkeley Street including replacement of mansard roof with additional storey; extension of rear elevation pitch with inset terraces; infill of lightwell at basement and ground level; reconfiguration of shopfront at ground floor level; upgrades to the building's safety and sustainability performance; and associated works' NAMELY, omission of AHU unit on roof and installation of floor-by-floor MVHR system with associated works to windows, and creation of roof terrace. (Application under Section 73 of the Act).

    Awaiting decision Full applications Extension Loft or dormer +1 27 docs

  • 13 Berkeley Street London W1J 8DU

    25/06530/LBC Submitted 12 Sep 2025 50 yards away

    Fit out of internal office areas to existing 4th, 5th and 6th floors including strip out of existing non bearing internal partitions and joinery, independent from historic fabric; strip out of existing kitchens at rear rooms to 4th and 5th Floors; replacement of existing carpet floor tiles for new carpet floor, vinyl floor and ceramic tiles on existing non historic suspended subfloor; new proposed plaster board and glazed non bearing partitions and doors to form new layout, fixed to non historic fabric; decoration to existing perimetral independent lining partitions and ceilings; new proposed kitchen and toilets; installation of new lighting, small power and data and security system.

    Granted Heritage and listed buildings Windows or glazing 27 docs

  • 11 Berkeley Street London W1J 8DS

    25/07116/ADV Submitted 2 Oct 2025 50 yards away

    Display of externally illuminated fascia sign measuring 2m X 0.6m

    Granted Advertising 9 docs

  • 11 Berkeley Street London W1J 8DS

    25/07115/FULL Submitted 2 Oct 2025 50 yards away

    Installation of a new shopfront.

    Granted Full applications Windows or glazing 17 docs

  • 13 Berkeley Street London W1J 8DU

    26/07262/FULL Submitted 23 Oct 2026 50 yards away

    88% historically approved · decision due ~30 Dec

    Existing external door to be replaced with new aluminum framed glazed door. (Linked with 26/07263/LBC)

    Awaiting decision Full applications Windows or glazing

  • 13 Berkeley Street London W1J 8DU

    26/07263/LBC Submitted 23 Oct 2026 50 yards away

    90% historically approved · decision due ~30 Dec

    Existing external door to be replaces with new aluminum framed glazed door. (Linked with 26/07262/FULL)

    Awaiting decision Heritage and listed buildings Windows or glazing

In Westminster

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    Installation of new cast iron water pipe on rear courtyard elevation. (Linked with 26/07529/LBC)

    Received 5 Nov, published by the council 6 Nov 2026 Full applications
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    Received 3 Aug, published by the council 28 Aug 2026 Full applications
  • 26/07521/FULL Awaiting decision

    Flat 18 Harlequin Court 20 Tavistock Street London WC2E 7NZ

    Installation of one external condenser unit

    Received 4 Nov, published by the council 6 Nov 2026 Full applications
  • 26/07508/FULL Awaiting decision

    Buckingham Palace The Mall London SW1A 1AA

    Replacement of existing security lighting to the Buckingham Palace Forecourt with 80 compact LED spotlights installed within the lantern clusters across 10 principal piers, with associated concealed cabling and reversible fixings. (Linked with 26/07509/LBC)

    Received 4 Nov, published by the council 5 Nov 2026 Full applications
  • 26/07472/FULL Awaiting decision

    Flat 3 82 New Cavendish Street London W1G 9TA

    Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07473/LBC)

    Received 3 Nov, published by the council 6 Nov 2026 Full applications