Planning application
25 - 27 St George Street London W1S 1FS
Works: Extension Windows or glazing
Decided. The decision notice on the council portal carries the outcome in full, including any conditions.
Proposal
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 alterations to the location of the revolving door on St. George Street; provision of two areas for planters on the front St George Street elevation; amending the location of lighting fixtures to entrance; addition of address signage at ground floor level main entrance; amending level 06 and level 07 window sizes on both St George Street and Masons Arms Mews; and amending the wording of Condition 5 to allow the doors on St George Street to open outwards onto pavement for fire safety purposes.
As published by the council, reference 26/03413/NMA
Application record
- Reference
- 26/03413/NMA
- Category
- Amendments
- Status
- Decided
- Received
- 22 May 2026
- Validated
- 22 May 2026
- Ward
- West End
- Postcode
- W1S 1FS
Site history
Applications at this address on the Westminster register
This site has had 12 applications since 2025: 7 approved, 0 refused.
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26/05866/FULL Decided
25 - 27 St George Street London W1S 1FS
Installation of screened plant enclosure and revised roof equipment layout including associated works.
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26/01754/ADFULL Awaiting decision
25 - 27 St George Street London W1S 1FS
Detailed drawings and a bio-diversity management plan in relation to the green roof at main roof level to include construction method, layout, species and maintenance regime pursuant to condition 11 of planning permission dated 11th August 2025 (RN 25/01410/FULL)
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26/00963/ADFULL Awaiting decision
25 - 27 St George Street London W1S 1FS
Details of supplementary acoustic report pursuant to Condition 9 of planning permission dated 11/08/2025 (RN: 25/01410/FULL)
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26/00885/NMA Awaiting decision
25 - 27 St George Street London W1S 1FS
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
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25/09139/ADFULL Granted
25 - 27 St George Street London W1S 1FS
Details of samples of facing materials pursuant to Condition 17 of planning permission dated 11 August 2025 (RN: 25/01410/FULL)
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25/08990/ADFULL Granted
25 - 27 St George Street London W1S 1FS
Details of balustrade to the lightwell and to the seventh-floor terrace pursuant to conditon 15 (a & b) of planning permission dated 11 August 2025 (RN: 25/01410/FULL)
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25/08147/ADFULL Granted
25 - 27 St George Street London W1S 1FS
Detailed drawings of all new windows and doors pursuant to Condition 15 (C) of planning permission dated 11th August 2025 (RN: 25/01410/FULL)
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25/07446/NMA Granted
25 - 27 St George Street London W1S 1FS
Amendments to planning permission dated 11th August 2025 (RN 25/01410/FULL) for the 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 increase the roof height by 300mm; bring the building line forward by 993mm at seventh floor level; and insertion of additional louvres at the rear of the building at sixth floor level.
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25/06488/ADFULL Granted
25 - 27 St George Street London W1S 1FS
Details of Code of Construction Practice Appendix A checklist pursuant to Condition 18 of planning permission dated 11th August 2025 (RN:25/01410/FULL)
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25/06207/ADFULL Granted
25 - 27 St George Street London W1S 1FS
Details of a scheme of public art pursuant to condition 14 of planning permission dated 11th August 2025 (RN: 25/01410/FULL)
Timeline
Dates from the published record
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22 May 2026
Received by Westminster
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21 Jul 2026
Added to PlanIndex
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12 Oct 2026
Status changed to Decided
Previously Pending.
Documents
Plans, drawings, consultee responses and the officer's report
15 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 documentsAfter the decision
Westminster has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.
About amendment applications
An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
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25 - 27 St George Street London W1S 1FS
Details of a scheme of public art pursuant to condition 14 of planning permission dated 11th August 2025 (RN: 25/01410/FULL)
Granted Full applications 11 docs -
25 - 27 St George Street London W1S 1FS
93% historically approved · decision due ~9 Apr
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
Awaiting decision Amendments Extension 23 docs -
25 - 27 St George Street London W1S 1FS
Detailed drawings of all new windows and doors pursuant to Condition 15 (C) of planning permission dated 11th August 2025 (RN: 25/01410/FULL)
Granted Full applications Windows or glazing 21 docs -
25 - 27 St George Street London W1S 1FS
Details of balustrade to the lightwell and to the seventh-floor terrace pursuant to conditon 15 (a & b) of planning permission dated 11 August 2025 (RN: 25/01410/FULL)
Granted Full applications 4 docs -
25 - 27 St George Street London W1S 1FS
Installation of screened plant enclosure and revised roof equipment layout including associated works.
Decided Full applications -
25 St George Street London W1S 1FS
Landscaping scheme to rear flat roof areas at fourth and fifth floor level.
Decided Full applications 7 docs
Other amendment applications
In Westminster
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26/07459/NMA Awaiting decision
1 Hanover Square London W1S 1HA
Amendments to planning pemrission dated 10 October 2025 (RN: 25/01558/FULL) for the: Partial demolition, refurbishment and extension of the existing building to provide a sub-basement, basement, ground plus eight storey building; infilling and stepped rear extension; excavation of a new sub-basement level; installation of new plant equipment at basement and roof level; terraces at fourth, fifth, sixth, seventh and eighth floor levels; soft and hard landscaping; reprovision of car parking; new cycle parking facilities; and associated external works. Use of the building for retail and/or restaurant (Class E) on part ground floor and office (Class E) on all other floors. NAMELY, to allow alterations to the design of the ground floor frontages on Hanover Square and St George Street.
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26/07438/NMA Awaiting decision
29 - 31 Hill Street London W1J 5LS
Amendments to planning permission dated 1st July 2025 (RN 25/01006/FULL) for the external alterations at roof level including the creation of Level 04 roof terrace for use in association with existing office (Class E), replacement and installation of new plant and landscaping, replacement of windows, introduction of louvres, removal and replacement of rooflights, installation of new rooflight and other associated works. NAMELY, for alterations comprising of the removal of window sash boxes and weights, changes to the window mullion arrangement, the removal of two sash windows, the installation of secondary glazing, the removal of existing chamber hatch and installation of extract vent and integrated bench, the external replacement of rainwater goods and hoppers, the removal of bricks and installation of airbricks, minor demolition works, replacement of roof covering, removal of ductwork, roof plant rearrangement, the installation of a new external door to plant area, minor layout alterations and other associated works.
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26/07389/NMA Decided
Flat 1 5 Grittleton Road London W9 2DD
Amendments to planning permission dated 04 June 2025 (RN: 25/02022/FULL), NAMELY, amendment of Condition 4 to correct the property address from 9 Aldridge Road Villas to Flat 1 5 Grittleton Road.
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26/07377/NMA Awaiting decision
60 Ledbury Road London W11 2AJ
Amendments to planning permission dated 2nd October 2025 (RN 25/04018/FULL) for the Partial demolition, refurbishment, and erection of a mansard roof extension to form a new third floor with dormers to front, side and rear elevations; to form 6 flats (Class C3) on upper floors; external plant equipment and ductwork; lower ground floor excavation to increase floor to ceiling height; replacement windows; cycle parking and associated external alterations; use of the part ground floor and lower ground floor as retail and restaurant (Class E). Site includes 60-68 Ledbury Road) NAMELY, An amendment to the basement and ground floor drawing reference numbers; amendment to the description of development, in reference to restaurant and or retail use; and amendments to C
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26/07375/NMA Awaiting decision
77 Hereford Road London W2 5BB
Amendments to planning permission dated 4th August 2026 (RN 26/03970/FULL) for the Replacement of roof terrace access stair with glazed hatch, new timber decking and front and rear roof railings to roof terrace, with infilling side window of closet wing. NAMELY, Hinged hatch access substituted by sliding hatch.