Planning application
1 Berkeley Mews London W1H 7AT
Works: 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 22nd May 2024 (RN 23/07126/FULL) for: Partial demolition behind partially retained facades, use of 2 Berkeley Mews as office accommodation (Class E) and amalgamation with existing office (Class E) use at 1 Berkeley Mews, associated internal and external alterations, provision of external plant and repair works all in connection with a land use swap with 28 Dorset Street (RN: 23/07147/FULL) NAMELY, to add an additional access conservation rooflight to the rear pitch of the main roof on 2 Berkeley Mews.
As published by the council, reference 25/07954/NMA
Application record
- Reference
- 25/07954/NMA
- Type
- Non-material amendments
- Status
- Decided
- Decision
- Granted As published: Application Permitted
- Received
- 3 Nov 2025
- Validated
- 3 Nov 2025
- Decided
- 18 Nov 2025
- Ward
- Marylebone
- Decision by
- Delegated Decision
- Postcode
- W1H 7AT
Site history
Applications at this address on the Westminster register
This site has had 3 applications since 2025: 2 approved, 0 refused.
-
26/05889/FULL Awaiting decision
1 Berkeley Mews London W1H 7AT
Installation of planters, outdoor furniture, projecting signage, wall-mounted lights and photocell, a post box, an intercom system and a CCTV to the front facade of 1 & 2 Berkeley Mews.
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25/06703/ADFULL Granted
1 Berkeley Mews London W1H 7AT
Details of new windows and doors pursuant to condition 9 of planning permission dated 22 May 2024 (RN: 23/07126/FULL).
Timeline
Dates from the published record
-
3 Nov 2025
Received by Westminster
-
18 Nov 2025
Decision issued: Application Permitted
-
21 Jul 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Garnett Architecture LLP Agent, an architecture practice registered in London
Active · incorporated 2003 · London
23 applications on PlanIndex · across 2 councils · 94% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
10 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 18 November 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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5 - 6 Berkeley Mews London W1H 7PB
Use of ground floor as offices, installation of new windows at ground floor level and replacement of windows at first floor level.
Granted Full applications Windows or glazing 15 docs -
5 - 6 Berkeley Mews London W1H 7PB
Use of ground floor of 6 Berkeley Mews as offices and alterations to front ground floor elevation including replacement of garage doors with new entrance doorway and windows.
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1 Berkeley Mews London W1H 7AT
88% historically approved · decision due ~22 Oct
Installation of planters, outdoor furniture, projecting signage, wall-mounted lights and photocell, a post box, an intercom system and a CCTV to the front facade of 1 & 2 Berkeley Mews.
Awaiting decision Full applications 14 docs -
14 Seymour Street London W1H 7HT
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18 Seymour Street London W1H 7HU
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Details of the repairs and upgrading of the rear oriel window pursuant to condition 5 of listed building consent dated 8th August 2023 (RN:23/02367).
Awaiting decision Conditions Windows or glazing 10 docs -
18 Seymour Street London W1H 7HU
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Details of new vault doors pursuant to condition 3 of listed building consent dated 01 April 2026 (RN: 26/01486/LBC)
Decided
Other amendment applications
In Westminster
-
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.
-
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.
-
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.