Council planning record

Refurbishment and extension of Roxburghe House and 39 and 40 Margaret Street, including new stair and lift core extension, UKPN substation and the introduction of a rooftop terrace, pavilion and plant enclosure to each building; replacement of windows, shopfronts and new office entrance from Margaret Street and associated ancillary works; and associated works with the use of the buildings as Class E(g) at part basement, part ground floor and upper floors and Class E(a)(b)(c) at part ground and part basement levels. (Linked with 26/05749/LBC)

Roxburghe House 273 - 287 Regent Street London W1B 2HA

PendingReference: 26/05748/FULLCity of Westminster

Last published check: 14 Sept 2026, 18:03. Check the council record for more recent changes.

Application location

Roxburghe House 273 - 287 Regent Street London W1B 2HA

This record has no verified map location.

View council map

Application summary

Status
Pending
Application type
Full Planning Permission Application
Received
21 Aug 2026
Validated
21 Aug 2026
Determination deadline
Not published
Local authority
City of Westminster

Application overview

Refurbishment and extension of Roxburghe House and 39 and 40 Margaret Street, including new stair and lift core extension, UKPN substation and the introduction of a rooftop terrace, pavilion and plant enclosure to each building; replacement of windows, shopfronts and new office entrance from Margaret Street and associated ancillary works; and associated works with the use of the buildings as Class E(g) at part basement, part ground floor and upper floors and Class E(a)(b)(c) at part ground and part basement levels. (Linked with 26/05749/LBC)

Proposal details

Reference
26/05748/FULL
Alternative references
PP-14954031
Ward
West End
Agent
Newmark

Sign in to view all collected council fields and recorded changes.

Sign in to view collected details

Documents 113 of 113

DocumentPublishedAction
NEIGHBOUR NOTIFICATION LETTER (21D)Background Papers · PDF8 Sept 2026View
ACK-GENERAL LETTER (G/P/C)Background Papers · PDF2 Sept 2026View
CNSLT-LA SOCIETYBackground Papers · PDF2 Sept 2026View
ECNSLT-INTERNAL CONSULTSBackground Papers · PDF2 Sept 2026View
ECNSLT-INTERNAL CONSULTSBackground Papers · PDF2 Sept 2026View
ECNSLT-INTERNAL CONSULTSBackground Papers · PDF2 Sept 2026View
CNSLT-CONSULTEE CLOUD STDBackground Papers · PDF2 Sept 2026View
SITE NOTICE 21 OR 28 DAYS IF T&C APPL.Background Papers · PDF2 Sept 2026View
NEIGHBOUR NOTIFICATION LETTER (21D)Background Papers · PDF2 Sept 2026View
RECEIPT OF APPLICATIONOther · PDF26 Aug 2026View
APPLICATIONFORMREDACTEDApplication Form · PDF21 Aug 2026View
WHOLE LIFE CARBON ASSESSMENT (1)Other · PDF21 Aug 2026View
CIRCULAR ECONOMY STATEMENT PART 2 OF 2 (2)Other · PDF21 Aug 2026View
CIRCULAR ECONOMY STATEMENT PART 1 OF 2 (2)Other · PDF21 Aug 2026View
ENERGY ASSESSMENTEnergy Assessment · PDF21 Aug 2026View
273REG SUSTAINABLE DESIGN STATEMENT 05.08.26 (2)Other · PDF21 Aug 2026View
DAYLIGHT AND SUNLIGHT AMENITY REPORTDaylight and Sunlight assessment · PDF21 Aug 2026View
NOISE IMPACT ASSESSMENT (1)Acoustic report · PDF21 Aug 2026View
273 REG - AIR QUALITY ASSESSMENT (1)Background Papers · PDF21 Aug 2026View
ROXBURGHE HOUSE TRANSPORT STATEMENT (1)Other · PDF21 Aug 2026View
260720 273 REGENT STREET OWMS FINAL 1.0Other · PDF21 Aug 2026View
TRAVEL PLAN (1)Travel Plan · PDF21 Aug 2026View
ROXBURGHE HOUSE DELIVERY AND SERVICING PLAN (2)Other · PDF21 Aug 2026View
DRAINAGE STRATEGY REPORT (1)Other · PDF21 Aug 2026View
STRUCTURAL METHODOLOGY STATEMENT PART 1 OF 1Other · PDF21 Aug 2026View
ARCHAEOLOGICAL ASSESSMENT PART 1 OF 1 (2)Background Papers · PDF21 Aug 2026View
HERITAGE STATEMENTHeritage Statement · PDF21 Aug 2026View
APPLICANTS COVER LETTERBackground Papers · PDF21 Aug 2026View
SUSTAINABILITY AND RETROFIT FIRST REQUIREMENTS CHECKLISTOther · PDF21 Aug 2026View
FIRE STATEMENT THE LONDON PLAN (MARCH 2021) PART 1 OF 1 (1)Background Papers · PDF21 Aug 2026View
273REG-RAM-SITE WIDE_ROXBURGHE HOUSE_PART_L_2021_GLA_CARBON_EMISSION_REPORTING-POther21 Aug 2026View
PLANNING STATEMENT - FINALPlanning Statement · PDF21 Aug 2026View
ROXBURGHE HOUSE BIODIVERSITY NET GAIN EXEMPTION STATEMENT 07.08.26Other · PDF21 Aug 2026View
DAS PART 09 OF 17 - PAVILIONS AND ROOF TERRACESDesign and Access Statement · PDF21 Aug 2026View
DAS PART 10 OF 17 - AVR VIEWSDesign and Access Statement · PDF21 Aug 2026View
DAS PART 11 OF 17 - LANDSCAPING AND BIODIVERSITYDesign and Access Statement · PDF21 Aug 2026View
DAS PART 12 OF 17 - HERITAGE RETENTIONDesign and Access Statement · PDF21 Aug 2026View
DAS PART 13 OF 17 - RETROFIT STATEMENTDesign and Access Statement · PDF21 Aug 2026View
DAS PART 14 OF 17 - SERVICING STRATEGYDesign and Access Statement · PDF21 Aug 2026View
DAS PART 15 OF 17 - ACCESS STATEMENTDesign and Access Statement · PDF21 Aug 2026View
DAS PART 16 OF 17 - SECURITYDesign and Access Statement · PDF21 Aug 2026View
DAS PART 17 OF 17 - CONCLUSIONDesign and Access Statement · PDF21 Aug 2026View
DAS PART 01 OF 17 - INTRODUCTIONDesign and Access Statement · PDF21 Aug 2026View
DAS PART 02 OF 17 - SITE AND EXISTING BUILDINGDesign and Access Statement · PDF21 Aug 2026View
DAS PART 03 OF 17 - VISION AND PROPOSED INTERVENTIONSDesign and Access Statement · PDF21 Aug 2026View
DAS PART 04 OF 17 - OFFICE ENTRANCEDesign and Access Statement · PDF21 Aug 2026View
DAS PART 05 OF 17 - RETAIL ENHANCEMENTDesign and Access Statement · PDF21 Aug 2026View
DAS PART 06 OF 17 - THERMAL UPGRADESDesign and Access Statement · PDF21 Aug 2026View
DAS PART 07 OF 17 - NEW CORE AND OFFICE FLOORSDesign and Access Statement · PDF21 Aug 2026View
DAS PART 08 OF 17 - MARGARET STREETDesign and Access Statement · PDF21 Aug 2026View
BLOCK PLANDrawing · PDF21 Aug 2026View
SITE PLAN (1)Background Papers · PDF21 Aug 2026View
LEVEL RH04 MSRF - EXISTINGDrawing · PDF21 Aug 2026View
LEVEL RH05 - EXISTINGDrawing · PDF21 Aug 2026View
LEVEL RH06 - EXISTINGDrawing · PDF21 Aug 2026View
LEVEL RH07 - EXISTINGDrawing · PDF21 Aug 2026View
LEVEL RHRF - EXISTINGDrawing · PDF21 Aug 2026View
NORTH ELEVATION - EXISTINGDrawing · PDF21 Aug 2026View
SECTION AA - EXISTINGDrawing · PDF21 Aug 2026View
SECTION BB - EXISTINGDrawing · PDF21 Aug 2026View
SECTION CC - EXISTINGDrawing · PDF21 Aug 2026View
SECTION DD - EXISTINGDrawing · PDF21 Aug 2026View
SECTION EE - EXISTINGDrawing · PDF21 Aug 2026View
SOUTH ELEVATION - EXISTINGDrawing · PDF21 Aug 2026View
WEST ELEVATION - EXISTINGDrawing · PDF21 Aug 2026View
EAST- NORTH EAST- SOUTH EAST ELEVATION - EXISTINGDrawing · PDF21 Aug 2026View
LEVEL B1 - EXISTINGDrawing · PDF21 Aug 2026View
LEVEL GF - EXISTINGDrawing · PDF21 Aug 2026View
LEVEL GF MEZZANINE - EXISTINGDrawing · PDF21 Aug 2026View
LEVEL MS03 - EXISTINGDrawing · PDF21 Aug 2026View
LEVEL RH01 MS01 - EXISTINGDrawing · PDF21 Aug 2026View
LEVEL RH02 MS02 - EXISTINGDrawing · PDF21 Aug 2026View
LEVEL RH03 MS04 - EXISTINGDrawing · PDF21 Aug 2026View
LEVEL RH02 MS02 - DEMOLITIONDrawing · PDF21 Aug 2026View
LEVEL RH03 MS04 - DEMOLITIONDrawing · PDF21 Aug 2026View
LEVEL RH04 MSRF - DEMOLITIONDrawing · PDF21 Aug 2026View
LEVEL RH05 - DEMOLITIONDrawing · PDF21 Aug 2026View
LEVEL RH06 - DEMOLITIONDrawing · PDF21 Aug 2026View
LEVEL RH07 - DEMOLITIONDrawing · PDF21 Aug 2026View
NORTH ELEVATION - DEMOLITIONDrawing · PDF21 Aug 2026View
SECTION AA - DEMOLITIONDrawing · PDF21 Aug 2026View
SECTION BB - DEMOLITIONDrawing · PDF21 Aug 2026View
SECTION CC - DEMOLITIONDrawing · PDF21 Aug 2026View
SECTION DD - DEMOLITIONDrawing · PDF21 Aug 2026View
SECTION EE - DEMOLITIONDrawing · PDF21 Aug 2026View
SOUTH ELEVATION - DEMOLITIONDrawing · PDF21 Aug 2026View
WEST ELEVATION - DEMOLITIONDrawing · PDF21 Aug 2026View
EAST- NORTH EAST- SOUTH EAST ELEVATION - DEMOLITIONDrawing · PDF21 Aug 2026View
LEVEL B1 - DEMOLITIONDrawing · PDF21 Aug 2026View
LEVEL GF - DEMOLITIONDrawing · PDF21 Aug 2026View
LEVEL GF MEZZANINE - DEMOLITIONDrawing · PDF21 Aug 2026View
LEVEL MS03 - DEMOLITIONDrawing · PDF21 Aug 2026View
LEVEL RH01 MS01 - DEMOLITIONDrawing · PDF21 Aug 2026View
LEVEL RH07 - PROPOSEDDrawing · PDF21 Aug 2026View
LEVEL RHRF - PROPOSEDDrawing · PDF21 Aug 2026View
NORTH ELEVATION - PROPOSEDDrawing · PDF21 Aug 2026View
SECTION AA - PROPOSEDDrawing · PDF21 Aug 2026View
SECTION BB - PROPOSEDDrawing · PDF21 Aug 2026View
SECTION CC - PROPOSEDDrawing · PDF21 Aug 2026View
SECTION DD - PROPOSEDDrawing · PDF21 Aug 2026View
SECTION EE - PROPOSEDDrawing · PDF21 Aug 2026View
SOUTH ELEVATION - PROPOSEDDrawing · PDF21 Aug 2026View
WEST ELEVATION - PROPOSEDDrawing · PDF21 Aug 2026View
EAST- NORTH EAST- SOUTH EAST ELEVATION - PROPOSEDDrawing · PDF21 Aug 2026View
LEVEL B1 - PROPOSEDDrawing · PDF21 Aug 2026View
LEVEL GF - PROPOSEDDrawing · PDF21 Aug 2026View
LEVEL MS03 - PROPOSEDDrawing · PDF21 Aug 2026View
LEVEL RH01 MS01 - PROPOSEDDrawing · PDF21 Aug 2026View
LEVEL RH02 MS02 - PROPOSEDDrawing · PDF21 Aug 2026View
LEVEL RH03 MS04 - PROPOSEDDrawing · PDF21 Aug 2026View
LEVEL RH04 MS05 - PROPOSEDDrawing · PDF21 Aug 2026View
LEVEL RH05 MSRF - PROPOSEDDrawing · PDF21 Aug 2026View
LEVEL RH06 - PROPOSEDDrawing · PDF21 Aug 2026View

Documents open on the council website. Browse council documents if a link has changed.

Application timeline

Council milestones and published deadlines. A deadline passing does not confirm a decision.

  1. Application Received Date

    Published milestoneCouncil source
  2. Application Validated Date

    Published milestoneCouncil source
  3. Target Date

    Published deadline

    A published target or deadline. It does not confirm an outcome.

    Council source

Decision & conditions

Decision not yet published

Understand this planning record

All planning guides
  • Understanding planning · 13 min read

    Planning application documents: what to read first

    Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.

  • Understanding planning · 13 min read

    Planning application statuses explained

    Understand pending consideration, approved, refused and withdrawn planning applications. Compare status labels and find the documents explaining each outcome.

  • Understanding planning · 13 min read

    Planning permission drawings: how to read plans

    Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.