25/09343/LBC
Application Details
Description
Use of ground floor and mezzanine levels to rear as residential (Class C3) use; deconversion of ground floor and mezzanine levels to rear together with two studio flats and one one-bedroom flat to form one three-bedroom maisonette; creation of reconfigured office unit in basement; replacement of all but one window with slimline timber double glazed units installation of secondary glazing to one window; renovation of shopfront; reinstatement of glazed fanlight with opening vent, new solid panel door, and awning; new glazed doors to south elevation of mezzanine garden room; new metal balustrading across rear boundary and raised terrace surface level with walk-on roof lights; replacement of concrete roof tiles with slate and new glazed roof light/ roof access; creation of green roof above mezzanine garden room; removal of modern partition walls and reinstatement of historical plan form as far as possible; reinstatement of historic period features all in connection with the use of building as office at part basement level with the remainder of the building being used as a single residential unit (Class C3) and associated internal alterations. (Linked to 25/09342/FULL)
Council
Westminster
Application Type
Listed Building Consent Application
Date Received
24 Dec 2025
Date Validated
24 Dec 2025
Council Website
View on Westminster websiteLocation
Address
56 Upper Montagu Street London W1H 1SN
Postcode
W1H 1SN
UPRN
Coordinates
51.520797100000000, -0.160576900000000
Source: Application UPRN
Quick Info
- UID
- 25/09343/LBC
- Reference
- 25/09343/LBC
- Status
- Pending
- Last Updated
- 30 May 2026