Planning application
26/02764/NMA
4A Abercorn Place NW8 9XR
Proposal
Amendments to planning permission dated 13th February 2026 (RN:25/06416/FULL) for Exterior alterations to existing building, including introduction of new pergola to rear elevation, extension of existing ground floor plant/storage room, modifications to existing windows and doors, new traditional roof lantern rooflight, and changes to existing boundary wall. Namely, a section of the existing masonry boundary wall is to be increased in height to improve privacy and security, and to screen the bin storage area and replace the existing triple sash window with a new timber-framed door and adjacent side window, designed to match the existing widnow.
As published by the council, reference 26/02764/NMA
Timeline
Dates from the published record
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24 Apr 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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26/03542/FULL Awaiting decision
4A Abercorn Place NW8 9XR
Installation of air conditioning unit within front lightwell. Installation of air conditioning unit within an acoustic enclosure within rear garden.
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25/06416/FULL Awaiting decision
4A Abercorn Place NW8 9XR
Exterior alterations to existing building, including introduction of new pergola to rear elevation, extension of existing ground floor plant/storage room, modifications to existing windows and doors, new traditional roof lantern rooflight, and changes to existing boundary wall.
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26/01276/LBC Awaiting decision
6 Abercorn Place NW8 9XP
Replacement of existing lead flat roof covering above single-storey side extension, including improved insulation within the roof build-up. (like-for-like)
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26/00242/FULL Awaiting decision
First Floor Flat 2 Nugent Terrace London NW8 9QB
Amalgamation of two existing flats into a single dwelling; erection of first-floor extension with balcony and stairs down to new rear terrace and associated new railings; installation of air source heat pumps to rear flat roof; replacement of windows and doors; installation of solar panels to roof; installation of rooflights.
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26/00112/FULL Granted
106 Hamilton Terrace London NW8 9UP
Variation of conditions 1 and 13 of planning permission dated 16 June 2023 ( RN 23/02171/FULL), which in itself was a variation of Condition 18 (Construction Management Plan (CMP) of the planning permission dated 26th November 2021 (RN 21/05740/FULL); and a variation of Condition 1 of planning permission dated 16 March 2016 (RN: 16/00374/FULL) and further to the varied condition 1 of planning permission dated 28 July 2015 (RN: 15/02336/FULL) for excavation of a basement beneath existing building, part of front and rear gardens, demolition of rear facade, extensions to the rear and at roof level in connection with the use of the building as a single house. NAMELY, to reposition the ASHP condenser and acoustic enclosure and also accompanied by a revised Garden Masterplan.
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25/08168/TDD Awaiting decision
13 Abercorn Place NW8 9EA
1 x dead Himalayan birch - fell
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.