Planning application
25/06416/FULL
4A Abercorn Place NW8 9XR
Proposal
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.
As published by the council, reference 25/06416/FULL
Timeline
Dates from the published record
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8 Sep 2025
Received by Westminster
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3 Oct 2025
Validated
Checked as complete and ready for consideration.
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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 full applications applications
How this application type works
A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.
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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26/02764/NMA Awaiting decision
4A Abercorn Place NW8 9XR
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.
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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
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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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25/08662/FULL Granted
12 Alma Square NW8 9QA
Amalgamation of two self-contained flats into a single family dwelling; replacement of windows with double-glazed painted timber units and installation of five conservation-style rooflights.
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26/04829/ADFULL Granted
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Details of external and internal signage strategy pursuant to Condition 33(E) of planning permission dated 8th April 2024 (RN: 23/00571/FULL)
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26/04841/ADFULL Granted
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Details of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to condition 5 of planning permission dated 18th November 2025 (RN:25/06159).
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26/04989/FULL Awaiting decision
1 Kildare Terrace London W2 5JT
Erection of a mansard roof extending over the main house and side wing, replacement lower ground rear extension with roof terrace above, lowering of lower ground floor slab, installation of an air source heat pump in rear garden, new front boundary treatment, and new second floor window on the north elevation.
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26/04986/FULL Awaiting decision
Inver Court Inverness Terrace London W2 6JB
Replacement of combustible materials in the render facades; timber decking and plastic soffits/ fascias to terraces with non-combustible materials on the 5th and 6th floors.