Planning application
50 Grosvenor Street London
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Internal alterations at lower ground, ground, first, second, third and fourth floors.
As published by the council, reference 25/08357/LBC
Application record
- Reference
- 25/08357/LBC
- Type
- Listed Building Consent Application
- Status
- Decided
- Decision
- Granted As published: Application Permitted
- Received
- 14 Nov 2025
- Validated
- 4 Dec 2025
- Decided
- 20 Feb 2026
- Ward
- West End
- Decision by
- Delegated Decision
Site history
Applications at this address on the Westminster register
This site has had 8 applications since 2025: 1 approved, 2 refused.
-
26/03813/LBC Decided
50 Grosvenor Street London
Installation of three condenser units within the rear courtyard.
-
26/03812/FULL Decided
50 Grosvenor Street London
Installation of three condenser units within the rear courtyard.
-
26/03477/LBC Awaiting decision
50 Grosvenor Street London
Minor internal works at ground and first floor levels to refurbish and fit-out office accommodation (revised submission of application ref. 26/00764/LBC).
-
26/01504/LBC Awaiting decision
50 Grosvenor Street London
Installation of three condenser units within the rear courtyard. (Linked with 26/01503/FULL)
-
26/01503/FULL Awaiting decision
50 Grosvenor Street London
Installation of three condenser units within the rear courtyard. (Linked with 26/01504/LBC)
-
26/00764/LBC Refused
50 Grosvenor Street London
Internal works at ground and first floor levels to refurbish and fit-out office accommodation.
-
26/00754/LBC Refused
50 Grosvenor Street London
Creation of internal structural opening at ground floor level to provide access between 50 and 51 Grosvenor Street.
Timeline
Dates from the published record
-
14 Nov 2025
Received by Westminster
-
4 Dec 2025
Validated
Checked as complete and ready for consideration.
-
20 Feb 2026
Decision issued: Application Permitted
-
30 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Firstplan Ltd Agent, registered in London
Active · incorporated 2003 · London
844 applications on PlanIndex · across 119 councils · 94% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
73 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.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat this grant of permission means
Westminster granted permission on 20 February 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 heritage and listed building applications
Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
50 Grosvenor Street London
Internal works at ground and first floor levels to refurbish and fit-out office accommodation.
Refused Heritage and listed buildings 47 docs -
50 Grosvenor Street London
Creation of internal structural opening at ground floor level to provide access between 50 and 51 Grosvenor Street.
Refused Heritage and listed buildings 18 docs -
50 Grosvenor Street London
90% historically approved · decision due ~22 Jul
Minor internal works at ground and first floor levels to refurbish and fit-out office accommodation (revised submission of application ref. 26/00764/LBC).
Awaiting decision Heritage and listed buildings 33 docs -
49 Grosvenor Street London W1K 3HP
90% historically approved · decision due ~11 Nov
Internal alterations and refurbishment.
Decided Heritage and listed buildings -
Flat 6 16 Mount Row London W1K 3SE
88% historically approved · decision due ~2 Dec
Installation of a single external air confitioning condenser unit at roof level.
Awaiting decision Full applications -
Investcorp House 48 Grosvenor Street London W1K 3HW
88% historically approved · decision due ~11 May
Infill of vehicle garage access on Mount Row, infill of lightwell and skylights at ground floor level, renewing glass facade of link building, new plant on roof.
Awaiting decision Full applications Extension 50 docs
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