Planning application
50 Berkeley Street London W1J 8HA
Works: Extension Loft or dormer Demolition
Decided. The decision notice on the council portal carries the outcome in full, including any conditions.
Proposal
Amendments to planning permission dated 01 December 2021 (RN: 20/06093/FULL) for: Erection of two 2 storey infill extensions to the set-back corners at fifth floor level on the Berkeley Street/Mayfair Place elevation and Berkeley Street/Stratton Street elevation, the demolition of the existing mansard roof and its replacement with a single sheer storey (to match the lower floors) on the Mayfair Place elevation and Stratton Street elevation, erection of an additional set back floor at eighth floor level, plus roof top plant room. Associated external alterations, including to existing ground floor entrances, and alterations to the existing plant/ducts. Use of basement (part), ground (part) and 1st to 8th floor as offices (Class E) namely, to allow swapping the male & female shower & change areas; reducing the number of female showers from 11 to 8 - and total showers from 27 to 24; layout changes to location of lockers.
As published by the council, reference 26/04542/NMA
Application record
- Reference
- 26/04542/NMA
- Category
- Amendments
- Status
- Decided
- Received
- 8 Jul 2026
- Validated
- 8 Jul 2026
- Postcode
- W1J 8HA
Site history
Applications at this address on the Westminster register
This site has had 3 applications since 2025: 1 approved, 0 refused.
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26/03944/ADFULL Decided
50 Berkeley Street London W1J 8HA
Details of a post construction stage report which demonstrates that the development meets an "Excellent" rating under BREEAM UK Refurbishment and Fit-Out (RFO) 2014 pursuant to condition 6 (b) of planning permission dated 1st December 2021 (RN: 20/06093).
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25/05290/NMA Granted
50 Berkeley Street London W1J 8HA
Amendments to planning permission dated 1st December 2021 (RN:20/06093/FULL) for Erection of two 2 storey infill extensions to the set-back corners at fifth floor level on the Berkeley Street/Mayfair Place elevation and Berkeley Street/Stratton Street elevation, the demolition of the existing mansard roof and its replacement with a single sheer storey (to match the lower floors) on the Mayfair Place elevation and Stratton Street elevation, erection of an additional set back floor at eighth floor level, plus roof top plant room. Associated external alterations, including to existing ground floor entrances, and alterations to the existing plant/ducts. Use of basement (part), ground (part) and 1st to 8th floor as offices (Class E). Namely, Alterations to balustrade height, amendments to foam inlets, small roof opening enclosure to north core top roof
Timeline
Dates from the published record
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8 Jul 2026
Received by Westminster
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21 Jul 2026
Added to PlanIndex
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9 Aug 2026
Status changed to Decided
Previously Pending.
After 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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50 Berkeley Street London W1J 8HA
Details of a post construction stage report which demonstrates that the development meets an "Excellent" rating under BREEAM UK Refurbishment and Fit-Out (RFO) 2014 pursuant to condition 6 (b) of planning permission dated 1st December 2021 (RN: 20/06093).
Decided -
50 Berkeley Street London W1J 8HA
Amendments to planning permission dated 1st December 2021 (RN:20/06093/FULL) for Erection of two 2 storey infill extensions to the set-back corners at fifth floor level on the Berkeley Street/Mayfair Place elevation and Berkeley Street/Stratton Street elevation, the demolition of the existing mansard roof and its replacement with a single sheer storey (to match the lower floors) on the Mayfair Place elevation and Stratton Street elevation, erection of an additional set back floor at eighth floor level, plus roof top plant room. Associated external alterations, including to existing ground floor entrances, and alterations to the existing plant/ducts. Use of basement (part), ground (part) and 1st to 8th floor as offices (Class E). Namely, Alterations to balustrade height, amendments to foam inlets, small roof opening enclosure to north core top roof
Granted Amendments Extension Loft or dormer +1 19 docs -
51 Berkeley Street London W1J 8NL
90% historically approved · decision due ~14 May
External and internal works including remove existing 3M white reverse cut vinyl texts and replace with suspended statutory signage. Decorations, New flooring to BOH behind self service wall, new secure partitions to fill in void, replace QSP with New Internal ATMs and associated data and power
Awaiting decision Heritage and listed buildings 11 docs -
8 Berkeley Street London W1J 8DN
Alterations to shopfront and entrance.
Granted Full applications Windows or glazing 6 docs -
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8 - 9 Berkeley Street London W1J 8DW
Detailed drawings and a bio-diversity management plan in relation to the planters and green wall pursuant to condition 10 of planning permission dated 7th January 2025 (RN: 24/07177/FULL)
Granted Full applications 9 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.