26/00885/NMAPlanning Application 26/00885/NMA
Amendment application at 25 - 27 St George Street London W1S 1FS, Westminster. View planning documents, track the decision and get email alerts on updates.
Amendments to planning permission dated 11 August 2025 (RN: 25/01410/FULL) for Alterations to the elevations on St. George St and Masons Arms Mews; removal of the car lift to the basement parking from Masons Arms Mews; extensions at fourth, fifth, sixth and seventh floor levels for use as office accommodation (Class E) with new terraces at fourth, fifth, sixth and seventh floor levels. Installation of PV panels and green roof at main roof level; planting on the terraces; new external stair in the lightwell on the southern side of the building; creation of a new lightwell on the St. George Street side of the building including railings; new cycle parking facilities and associated works. NAMELY, to amend the approved position of the balustrade of the approved roof terrace at seventh floor level to increase terrace area
26/00885/NMA
25 - 27 St George Street London W1S 1FS
This is an application to amend a permission at 25 - 27 St George Street London W1S 1FS. Westminster has handled 604 applications of this type and approves 80% of them, typically deciding them in 40 days. It was submitted on 12 February 2026 and is still awaiting a decision. The site is in the Mayfair conservation area, with 18 listed buildings nearby. There have been 6 other applications at this address. In the past year there have been 561 applications across West End. We hold 432 applications in total for the W1S postcode area.
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Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Westminster