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Amendments to planning permission dated 2nd September 2021 (21/02158/FULL) for: Demolition of the existing mansard roof and removal of plant and escape stair; erection of new double mansard roof extension and rear extension for additional commercial floorspace (Use Class E); and installation of new escape stair, rear balconies, roof terrace and associated works namely, amendments to allow for the installation of a condenser unit within the rear lightwell.

64 St James's Street London SW1A 1NF

PendingReference: 26/05670/NMACity of Westminster

Last published check: 14 Sept 2026, 19:39. Check the council record for more recent changes.

Application location

64 St James's Street London SW1A 1NF

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Application summary

Status
Pending
Application type
Non-material amendments
Received
19 Aug 2026
Validated
19 Aug 2026
Determination deadline
Not published
Local authority
City of Westminster

Application overview

Amendments to planning permission dated 2nd September 2021 (21/02158/FULL) for: Demolition of the existing mansard roof and removal of plant and escape stair; erection of new double mansard roof extension and rear extension for additional commercial floorspace (Use Class E); and installation of new escape stair, rear balconies, roof terrace and associated works namely, amendments to allow for the installation of a condenser unit within the rear lightwell.

Proposal details

Reference
26/05670/NMA
Alternative references
PP-15165138
Ward
St James's
Agent
Squire and Partners

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Documents 11 of 11

DocumentPublishedAction
ACK - NON-MATERIAL AMENDMENTBackground Papers · PDF25 Aug 2026View
RECEIPT OF APPLICATIONOther · PDF24 Aug 2026View
APPLICATIONFORMREDACTEDApplication Form · PDF19 Aug 2026View
FEECALCULATIONBackground Papers · PDF19 Aug 2026View
ATTACHMENTSUMMARYBackground Papers · PDF19 Aug 2026View
LOWER GROUND FLOOR PLANDrawing · PDF19 Aug 2026View
LOWER GROUND FLOOR PLAN PROPOSEDDrawing · PDF19 Aug 2026View
WEST ELEVATION PROPOSEDDrawing · PDF19 Aug 2026View
WEST ELEVATION PROPOSEDDrawing · PDF19 Aug 2026View
COVER LETTEROther · PDF19 Aug 2026View
NOISE IMPACT ASSESSMENTNoise impact assessment · PDF19 Aug 2026View

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

Application timeline

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  1. Application Received Date

    Published milestoneCouncil source

  2. Application Validated Date

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  3. Target Date

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    Council source

Decision & conditions

Decision not yet published
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