Planning application
26/04390/NMA
3 Stanhope Gate London W1K 1AG
Proposal
Amendments to planning permission dated 21 April 2021 (RN: 21/01198/FULL) for the: Replacement windows to 3 Stanhope Gate and 18C Curzon Street elevations from ground to fifth floor with addition of applied external stone window architraves. NAMELY, changes to windows and door frame detail and colour.
As published by the council, reference 26/04390/NMA
Timeline
Dates from the published record
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2 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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11/00506/ADFULL Granted
45 Park Lane London W1K 1PN
Approval of details pursuant to Condition 7 of planning permission dated 17 December 2010 (RN:10/09436), namely drawings illustrating the location of disabled pick up and drop off point.
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10/09436/FULL Granted
45 Park Lane London W1K 1PN
Variation of Condition 16 of planning permission dated 12 January 2009 (RN: 08/04411); namely, to revise waste strategy.
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10/09458/ADFULL Granted
45 Park Lane London W1K 1PN
Details of detailed Service Management Plan pursuant to Condition 9 of planning permission dated 12 January 2009 (RN: 08/04411).
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10/00551/ADLBC Granted
46 Park Lane London W1K 1PN
Details of drawing pursuant to Condition 1 of listed building consents dated 4 August 2009 (RN:09/03617).
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09/09650/FULL Granted
45 Park Lane London W1K 1PN
Alterations during the course of construction for works associated with use of the building as 48 bedroom hotel and external alterations in connection with planning permission dated 12 January 2009 (RN:08/04411) namely; alterations at roof level to incorporate solar panels and changes to fenestration on east elevation.
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09/09652/ADFULL Granted
45 Park Lane London W1K 1PN
Details of drawings showing the removal of the brise soleil at first/mezzanine level on the facades pursuant to Condition 17 of planning permission dated 12 January 2009 (RN:08/04411).
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.