Planning application
25/06392/LBC
120 Harley Street London W1G 7JW
Proposal
Internal and external alterations in connection with the installation of plant, structural repairs to Juliet balcony and front entrance steps. (Linked to 25/06391/FULL)
As published by the council, reference 25/06392/LBC
Timeline
Dates from the published record
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8 Sep 2025
Received by Westminster
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11 Nov 2025
Decision issued: Application Permitted
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21 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
About heritage and listed buildings applications
How this application type works
Heritage applications concern listed buildings and conservation areas. Listed building consent is needed for works, inside or out, that affect the special interest of a listed building, and carrying out such works without consent is a criminal offence. The council weighs harm to the heritage asset against any public benefit of the proposal.
More on heritage and listed buildings applications in our guide
Nearby applications
Within 500 metres
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25/06391/FULL Granted
120 Harley Street London W1G 7JW
Internal and external alterations in connection with the installation of plant, structural repairs to Juliet balcony and front entrance steps. (Linked to 25/06392/LBC)
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13/03948/FULL Granted
3 Devonshire Mews North London W1G 7BJ
External alterations to front and rear elevation, demolition of existing garage, erection of a new single storey front and rear extension at ground floor level and alterations at roof level to single family dwelling (Class C3).
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12/11070/FULL Granted
3 Devonshire Mews North London W1G 7BJ
External alterations to front and rear elevation, demolition of existing garage, erection of a new single storey front and rear extension at ground floor level and alterations at roof level to create additional residential accommodation to existing house..
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04/09114/FULL Granted
Site At 114 To 118 Harley Street And 5 - 6 Devonshire Mews North London W1G 7JL
Redevelopment to include the demolition of 116 Harley Street and 5-6 Devonshire Mews North and facade retention of 114 and 118 Harley Street to provide a new building comprising basement, ground and part two, part four upper floors for use for medical purposes (Class D1(a)) throughout and two self contained flats fronting Devonshire Mews North. (Part use swap with various properties including Collingwood House and buildings in Queen Anne Street, Wimpole Street, Devonshire Place and Marylebone High Street).
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04/09115/CAC Granted
Site At 114 To 118 Harley Street And 5 - 6 Devonshire Mews North London W1G 7JL
Demolition of 116 Harley Street and 5 - 6 Devonshire Mews North and the demolition of 114-118 Harley Street behind retained facades.
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08/05813/ADFULL Granted
Site At 114 To 118 Harley Street And 5 - 6 Devonshire Mews North London W1G 7JL
Details of public art pursuant to Condition 17.2 of planning permission dated 23 December 2005 (RN: 04/09114).
Other heritage and listed buildings applications
In Westminster
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26/04984/LBC Awaiting decision
47G Randolph Avenue London W9 1BQ
Installation of replacement fire surround.
-
26/04997/LBC Awaiting decision
Hanover Lodge Outer Circle Regent's Park London NW1 4HB
Erection of a morning room side extension. (Linked to 26/04996/FULL)
-
26/04979/LBC Awaiting decision
12 Brewer Street London W1F 0SF
Internal alterations including removal of internal enclosures; Replacement flooring, shelving and slatwall systems, staircase handrail repair and other associated joinery works.
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26/04987/LBC Awaiting decision
Basement And Ground Floor 8 Ganton Street London W1F 7QL
Repainting of the existing timber shopfront, hand-painted fascia lettering, installation of a new hanging sign using the existing projecting sign bracket, and installation of a discreet fascia-mounted LED trough light.
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26/04995/LBC Awaiting decision
Hanover Lodge Outer Circle Regent's Park London NW1 4HB
Erection of rear conservatory extensions and an entrance loggia to side with roof terrace above, together with associated landscaping and alterations. (Linked with 26/04994/FULL)