Planning application
50 Berkeley Street London W1J 8HA
Works: Extension Loft or dormer Demolition
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
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
As published by the council, reference 25/05290/NMA
Application record
- Reference
- 25/05290/NMA
- Type
- Non-material amendments
- Status
- Decided
- Decision
- Granted As published: Application Permitted
- Received
- 29 Jul 2025
- Validated
- 29 Jul 2025
- Decided
- 12 Aug 2025
- Ward
- West End
- Decision by
- Delegated Decision
- 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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26/04542/NMA Decided
50 Berkeley Street London W1J 8HA
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.
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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).
Timeline
Dates from the published record
-
29 Jul 2025
Received by Westminster
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12 Aug 2025
Decision issued: Application Permitted
-
21 Jul 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
CBRE Ltd Agent, registered in London
Active · incorporated 1998 · London
365 applications on PlanIndex · across 80 councils · 99% granted
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Plans, drawings, consultee responses and the officer's report
19 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.
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Open the documentsWhat this grant of permission means
Westminster granted permission on 12 August 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. 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
93% historically approved · decision due ~2 Sep
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.
Decided Amendments Extension Loft or dormer +1 -
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 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.
Granted Amendments Extension Demolition 15 docs -
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)
Granted Full applications 5 docs -
8 Berkeley Street London W1J 8DN
Alterations to shopfront and entrance.
Granted Full applications Windows or glazing 6 docs -
Other amendment applications
In Westminster
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26/06232/NMA Awaiting decision
37 Trevor Place London SW7 1LE
Amendments to planning permission dated 17th July 2026 (RN 26/03030/FULL) for the Alterations including enlargement of louvres and installation of new plant in basement; landscaping of roof terrace; second floor windows replaced with door sets; partial demolition at ground and first floor levels to create new lightwell and landscaped courtyard. NAMELY, addition of a free-standing sauna to the second-floor roof terrace.
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26/06256/NMA Awaiting decision
Queens Court Queensway London W2 4QN
Amendments to planning permission dated 21st May 2026 (RN:25/05013/FULL) for Variation of conditions 1, 3, 8, 9 and 17 of planning permission dated 11th May 2022 (RN 18/09765/FULL) for the Change of use of rear part of Queensway Market to Retail, Financial and Professional services, Office and Restaurant (within Class E) use and 5 residential units facing Princes Court, reconfiguration of retail units along Queensway including introduction of Retail uses at Nos.23 and 33 (current entrances to Queensway Market) and use of Nos.25 and 41-43 Queensway as Restaurant uses, installation of new shopfronts to Nos.23 to 43 Queensway 23-43, erection of infill extension to rear at ground floor level, erection of two new pavilion structures for Retail use and associated new hard and soft landscaping on land between Queens Court and Princes Court, installation of green roofs, rooflights and mechanical plant within enclosures to first floor level roofs between projecting rear wings of Queens Court installation of kitchen extract ducts to rear elevations, and associated cycle parking, waste storage, plant and other ancillary alterations ('Application 2'). Namely, to vary the hours of operation for the refrigeration plant controlled by condition 6.
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26/06251/NMA Awaiting decision
19 Cumberland Street London SW1V 4LS
Amendments to planning permission dated 20th March 2026 (RN:25/08960/FULL) for Lower ground floor rear infill extension with terrace above, replacement of rear first floor conservatory, new roof level rear single dormer with access to third floor roof terrace, alterations to windows and external refurbishment, namely the change of conservatory gable roof to a flat GRP roof.
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26/06201/NMA Awaiting decision
Almack House 28 King Street St James's London SW1Y 6QW
Amendments to planning permission dated 16th April 2026 (RN:26/01487/FULL) for Installation of a mechanical plant at lower ground floor and installation of two grilles to two lower ground floor windows, namely change to approved grille.
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26/06212/NMA Awaiting decision
10 - 11 Lancaster Gate London W2 3LH
Amendment to Condition 12 (Whole Life Carbon) of planning permission dated 19th April 2024 (RN 23/04044/FULL) for Change of use from hotel to residential use (Class C3) with associated internal alterations to create 11 new units and external alterations comprising reconfiguration and recladding of the rear extension and restoration of the existing building. Namely to include additional requirement to evidence and justify where benchmarks cannot be achieved, consider mitigation measures and if none, evidence that all mitigation measures have been exhausted. (Linked with RN 26/06213/ADFULL)