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Planning application

Pegasus House 37 - 43 Sackville Street London W1S 3EH

Granted Westminster 26/00816/ADFULL Approval of Details (Full PP)

Works: Windows or glazing

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

Proposal

Details of proposed timber windows for the retained facades pursuant to condition 7 (part) of planning permission dated 22 September 2021 (RN: 20/07605/FULL)

As published by the council, reference 26/00816/ADFULL

Application record

Reference
26/00816/ADFULL
Type
Approval of Details (Full PP)
Status
Decided
Decision
Granted As published: Application Permitted
Received
11 Feb 2026
Validated
11 Feb 2026
Decided
7 Apr 2026
Ward
West End
Decision by
Delegated Decision
Postcode
W1S 3EH

Site history

Applications at this address on the Westminster register

This site has had 39 applications since 2025: 27 approved, 0 refused.

  • 26/03619/ADFULL Awaiting decision

    Pegasus House 37 - 43 Sackville Street London W1S 3EH

    Details of servicing management plan pursuant to condition 17 of planning permission dated 19 August 2021 (RN: 20/07605/FULL)

    Submitted 3 Jun 2026 Full applications
  • 26/02535/ADFULL Awaiting decision

    Pegasus House 37 - 43 Sackville Street London W1S 3EH

    Details of design elements for external signage to residential and commercial entrances pursuant to condition 7 (partial) of planning permission dated 19 August 2021 (RN: 20/07605/FULL) [Linked to 26/02617/ADLBC].

    Submitted 17 Apr 2026 Full applications
  • 26/02617/ADLBC Awaiting decision

    Pegasus House 37 - 43 Sackville Street London W1S 3EH

    Details of design elements for external signage to residential and commerial entrances pursuant to condition 5 (partial) of listed building consent dated 12 January 2023 (RN: 22/07005/LBC) [Linked to 26/02535/ADFULL].

    Submitted 17 Apr 2026 Conditions
  • 26/01703/ADLBC Awaiting decision

    Pegasus House 37 - 43 Sackville Street London W1S 3EH

    Detailed drawings of new facades - typical details at all levels including roof level plant and shopfronts pursuant to condition 7 of planning permission dated 21st September 2021 (RN 20/07605/FULL) (Linked to 26/01596/ADFULL)

    Submitted 11 Mar 2026 Conditions
  • 26/01596/ADFULL Awaiting decision

    Pegasus House 37 - 43 Sackville Street London W1S 3EH

    Detailed drawings of new facades - typical details at all levels including roof level plant and shopfronts pursuant to condition 7 of planning permission dated 21st September 2021 (RN 20/07605/FULL) (Linked to 26/01703/ADLBC)

    Submitted 11 Mar 2026 Full applications
  • 26/01323/ADFULL Awaiting decision

    Pegasus House 37 - 43 Sackville Street London W1S 3EH

    Details of new facades and shopfronts pursuant to Condition 7 of planning permission dated 21 September 2021 (RN: 20/07605/FULL)

    Submitted 3 Mar 2026 Full applications
  • 26/01523/ADLBC Awaiting decision

    Pegasus House 37 - 43 Sackville Street London W1S 3EH

    Details of new facades and shopfronts pursuant to Condition 5 of listed building consent dated 13 January 2023 (RN: 22/07005/LBC)

    Submitted 3 Mar 2026 Conditions
  • 26/01926/ADLBC Awaiting decision

    Pegasus House 37 - 43 Sackville Street London W1S 3EH

    Details of new facades and shopfronts on the Piccadilly façade, Sackville Street Façade (southern end), Albany facades and Nuffield House north façades pursuant to Condition 5 (Part A) of listed buildling consent dated 13 January 2023 (RN: 22/07005/LBC)

    Submitted 25 Feb 2026 Conditions
  • 26/01183/ADFULL Awaiting decision

    Pegasus House 37 - 43 Sackville Street London W1S 3EH

    Details of new facades and shopfronts on the Piccadilly façade, Sackville Street Façade (southern end), Albany facades and Nuffield House north façade. pursuant to Condition 7 (Part A) of planning permission dated 08 September 2021 (RN: 20/07605/FULL)

    Submitted 25 Feb 2026 Full applications
  • 26/00819/ADFULL Granted

    Pegasus House 37 - 43 Sackville Street London W1S 3EH

    Details of facing materials (windows and secondary glazing) pursuant to Condition 5 of planning permission dated 22 September 2021 (RN: 20/07605/FULL)

    Decided 31 Mar 2026 Full applications

Timeline

Dates from the published record

  1. 11 Feb 2026

    Received by Westminster

  2. 7 Apr 2026

    Decision issued: Application Permitted

  3. 21 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Newmark LLP Agent

923 applications on PlanIndex · across 40 councils · 97% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

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Documents

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

26 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 7 April 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

  • Pegasus House 37 - 43 Sackville Street London W1S 3EH

    25/05906/ADFULL Submitted 20 Aug 2025 50 yards away

    Detailed drawings of shopfronts pursuant to Condition 7 (b) of planning permission dated 22nd September 2021 (RN:20/07605).

    Granted Full applications 15 docs

  • Pegasus House 37 - 43 Sackville Street London W1S 3EH

    25/08135/ADFULL Submitted 7 Nov 2025 50 yards away

    Detailed drawings of Sackville Street new windows pursuant to Condition 7 (part) of planning permission dated 22nd September 2021 (RN: 20/07605/FULL)

    Granted Full applications Windows or glazing 39 docs

  • Pegasus House 37 - 43 Sackville Street London W1S 3EH

    26/00819/ADFULL Submitted 11 Feb 2026 50 yards away

    Details of facing materials (windows and secondary glazing) pursuant to Condition 5 of planning permission dated 22 September 2021 (RN: 20/07605/FULL)

    Granted Full applications Windows or glazing 11 docs

  • Pegasus House 37 - 43 Sackville Street London W1S 3EH

    26/00817/ADFULL Submitted 11 Feb 2026 50 yards away

    88% historically approved · decision due ~8 Apr

    Details of new facades - typical details at all levels including roof level plant pursuant to condition 7 (part a) of planning permission dated 22 September 20221 (RN: 20/07605/FULL)

    Awaiting decision Full applications 6 docs

  • Pegasus House 37 - 43 Sackville Street London W1S 3EH

    26/00818/ADFULL Submitted 11 Feb 2026 50 yards away

    88% historically approved · decision due ~8 Apr

    Details of facing materials (balustrade details) pursuant to condition 5 of planning permission dated 22 September 2021 (RN:20/07605/FULL)

    Awaiting decision Full applications 2 docs

  • Pegasus House 37 - 43 Sackville Street London W1S 3EH

    26/01323/ADFULL Submitted 3 Mar 2026 50 yards away

    88% historically approved · decision due ~28 Apr

    Details of new facades and shopfronts pursuant to Condition 7 of planning permission dated 21 September 2021 (RN: 20/07605/FULL)

    Awaiting decision Full applications 9 docs

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