Planning application
26/04542/NMA
50 Berkeley Street London W1J 8HA
Proposal
Amendments to planning permission dated 01 December 2021 (RN: 20/06093/FULL) for the: 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; and associated works.
As published by the council, reference 26/04542/NMA
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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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About amendments applications
How this application type works
An amendment application changes a permission that already exists. Non-material amendments cover small adjustments with no wider effect, while minor material amendments, usually made by varying a condition, allow modest design changes without a fresh application. Anything beyond that needs a new permission, so the scope here is deliberately narrow.
Nearby applications
Within 500 metres
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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
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26/03944/ADFULL Awaiting decision
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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25/08602/NMA Granted
50 Stratton Street London W1J 8LL
Amendments to planning permission dated 01 December 2021 (RN:20/06105/FULL) for, 'Demolition of existing roof storeys and rebuilding to create a new sheer storey at fifth floor level and realigned tiered extensions at sixth, seventh and eighth floor level, plus roof top plant room. Erection of full height extension (ground to new eighth floor level) in rear enclosed lightwell. Creation of new terraces on all elevations at sixth, seventh, eighth and roof level. Use of ground floor unit (northern unit) for either retail or office use within Class E and use of the ground floor unit (southern unit) for either retail , restaurant or office use within Class E. Alterations at ground floor to bring the building line forward and align with column line, and including new shopfronts and entrances'; NAMELY amendments to the location of smoke vents.
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25/08601/ADFULL Granted
50 Stratton Street London W1J 8LL
Detailed drawings and full particulars, as appropriate, of the replacement public art pursuant to Condition 29 of planning permission dated 1 December 2021 (RN:20/06105/FULL)
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26/01080/ADFULL Granted
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)
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25/08196/FULL Awaiting decision
12 Berkeley Street London W1J 8DT
Variation of Condition 1 of planning permission dated 01 July 2025 (Ref: 25/00526/FULL) for, 'Alterations to 12 Berkeley Street including replacement of mansard roof with additional storey; extension of rear elevation pitch with inset terraces; infill of lightwell at basement and ground level; reconfiguration of shopfront at ground floor level; upgrades to the building's safety and sustainability performance; and associated works'; Namely, to allow the introduction of a new second-floor terrace, elevational refinements, material alterations, and associated detailing changes as part of the permitted works. (Application under Section 73 of the Act).
Other amendments applications
In Westminster
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26/04962/NMA Awaiting decision
Serpentine Gallery Kensington Gardens Exhibition Road London W2 3XA
Amendments to planning permission dated 27 February 2025 (RN: 24/08940/FULL) for the installation of temporary art sculpture from 24 March 2025 to 09 September 2025; NAMELY to extend the temporary planning consent until 21st March 2027.
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26/04951/NMA Awaiting decision
43 - 45 Portman Square London W1H 6LY
Amendments to planning permission dated 22 April 2026 (25/06153/FULL) for: Variation of Condition 1 of planning permission dated 7 April 2025 (24/04987/FULL) for: Partial demolition of the existing roof and removal of plant equipment; construction of a roof extension providing new office (Class E) floorspace with associated external amenity spaces and plant equipment; refurbishment of the existing building, including infilling of the existing atrium; alterations to the existing façade; provision of cycle parking spaces and end of journey facilities, and all associated and ancillary works NAMELY; to amend the wording of Condition 27 to allow basement demolition work to proceed.
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26/04873/NMA Awaiting decision
Orbis House 5 Mansfield Street London W1G 9NG
Amendments to planning permission dated 05 September 2024 (RN: 24/01895/FULL) for: new courtyard surface including walk-on rooflight; window and door alterations; new window to Mansfield Mews at second floor level; new rooflights; repairs to roof and external brickwork; erection of new staircase in front area lightwell; partial infill of rear lightwell at ground floor level; erection of roof terrace; installation of PV panels at roof level; and associated works namely; to allow provision of guarding system to provide safe access for maintenance across the roof; alteration at south elevation omitting window SFW11 from the new WC, remove the existing RWP from the internal courtyard corner, removal of the existing plastic section of a redundant vent pipe at lower level and retain original lead; new cast iron rain water pipes at west elevation; and internal layout alterations at basement, ground, 2nd, 3rd floors. (Linked with 26/04876/LBC)
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26/04870/NMA Awaiting decision
34 Park Street London W1K 2JD
Amendments to planning permission dated 8 May 2026 (25/07808/FULL) for general refurbishment and M&E upgrade of the office building namely; roof walkable skylight, GF meeting room wall mounted TV, garden bench and planters, fire lobbies, L4 glass partition, reception to hall door swing change, front lightwell electric cupboard change, wall panelling on LGF and L5, LGF modular screen, LGF courtyard window door infill, and LGF cove lighting.
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26/04816/NMA Awaiting decision
Ebury Bridge Estate Ebury Bridge Road London SW1W 8PX
Amendments to planning permission dated 21 July 2023 (RN:23/00331/COOUT) for a mixed use development in outline for residential floorspace and ancillary residential facilities (Class C3) non-residential floorspace comprising flexible retail (Classes A1 - A4), community (Class D1), leisure (Class D2) and workspace (Class B1) floorspace; provision of basement; new pedestrian and vehicular access; and associated amenity space, open space, plant, landscaping, car and cycle parking, refuse storage, servicing area, and other associated infrastructure works; and detailed planning consent for Blocks 7 and 8 comprising residential floorspace and ancillary residential facilities (Class C3); provision of a basement; new pedestrian and vehicular access; and associated amenity space landscaping, car and cycle parking, refuse storage, servicing area, and other associated infrastructure works, namely amendments to the approved Masterplan Phasing to incorporate enabling works and piling in Phase 2a and 3a.