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Planning application

10 Warwick Street London W1B 5LZ

Refused Westminster 25/06527/FULL Full Planning Permission Application

Works: Extension Loft or dormer Windows or glazing

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

Replacement shopfront; creation of a roof terrace and erection of associated access structure; addition of two dormer windows to the existing mansard roof; and installation of a lift including lift/stair overrun extension.

As published by the council, reference 25/06527/FULL

Application record

Reference
25/06527/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Refused As published: Application Refused
Received
12 Sep 2025
Validated
19 Sep 2025
Decided
8 Jun 2026
Ward
West End
Decision by
Delegated Decision
Postcode
W1B 5LZ

Site history

Applications at this address on the Westminster register

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

  • 26/04660/FULL Decided

    10 Warwick Street London W1B 5LZ

    Refurbishment of the existing five story building, including a new lift and stair core, refurbished office space including a new mezzanine, replacement of all existing windows and doors, including the glazed screen at ground floor level, formation of a new terrace at roof level with a new low level glazed access, insertion of two new dormers within existing mansard, and installation of a new condenser units located on an existing plant gantry on the rear facade.

    Decided 7 Sep 2026 Full applications

Timeline

Dates from the published record

  1. 12 Sep 2025

    Received by Westminster

  2. 19 Sep 2025

    Validated

    Checked as complete and ready for consideration.

  3. 8 Jun 2026

    Decision issued: Application Refused

  4. 21 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

bubble architects Agent, an architecture practice registered in London

Active · incorporated 2012 · London

12 applications on PlanIndex · across 5 councils · 75% granted

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Documents

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

34 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 refusal means

Westminster refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. 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

  • 10 Warwick Street London W1B 5LZ

    26/04660/FULL Submitted 13 Jul 2026 50 yards away

    Refurbishment of the existing five story building, including a new lift and stair core, refurbished office space including a new mezzanine, replacement of all existing windows and doors, including the glazed screen at ground floor level, formation of a new terrace at roof level with a new low level glazed access, insertion of two new dormers within existing mansard, and installation of a new condenser units located on an existing plant gantry on the rear facade.

    Decided Full applications Loft or dormer Windows or glazing 32 docs
  • 6 Warwick Street London W1B 5LU

    26/01519/ADV Submitted 10 Mar 2026 50 yards away

    82% historically approved · decision due ~5 May

    Display of internally illuminated projecting sign measuring 0.33m X 0.33m X 0.65m.

    Awaiting decision Advertising 8 docs
  • 6 Warwick Street London W1B 5LU

    25/06213/FULL Submitted 2 Sep 2025 50 yards away

    Installation of new kitchen extraction equipment, ducting and associated works.

    Withdrawn Full applications 23 docs
  • Fintex House 19 Golden Square London W1F 9JJ

    17/09446/ADFULL Submitted 24 Oct 2017 50 yards away

    Detailed drawings of all new windows showing key junctions pursuant to condition 12 of planning permission dated 21 March 2017 (RN: 16/10726)

    Granted Full applications Windows or glazing 10 docs
  • 106 - 108 Regent Street London W1B 5RU

    26/06087/ADV Submitted 7 Sep 2026 50 yards away

    82% historically approved · decision due ~2 Nov

    Display of non-illuminated vinyl display to shopfront glazing on Regent Street and Glasshouse Street for a temporary period from 7 September 2026 until 1 March 2027.

    Decided Advertising Windows or glazing
  • 106 - 108 Regent Street London W1B 5RU

    26/06057/LBC Submitted 4 Sep 2026 50 yards away

    90% historically approved · decision due ~2 Nov

    Installation of non-illuminated vinyl display to shopfront glazing on Regent Street and Glasshouse Street for a temporary period from 7 September 2026 until 1 March 2027.

    Decided Heritage and listed buildings Windows or glazing

In Westminster

  • 26/07528/FULL Awaiting decision

    69 Eaton Place London SW1X 8DF

    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
  • 26/05200/FULL Decided

    1 The Court House 165 Seymour Place London W1H 4PU

    Installation of waterproofing system to the existing lead flat roofs

    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