Planning application
25/08821/FULL
29 Chiltern Street London W1U 7PL
Proposal
Installation of external plant within the rear lightwell.
As published by the council, reference 25/08821/FULL
Timeline
Dates from the published record
-
4 Dec 2025
Received by Westminster
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20 Apr 2026
Decision issued: Application Permitted
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20 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
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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25/06011/ADV Granted
37 Chiltern Street London W1U 7PW
Display of graphic window vinyls on the ground floor windows at 37 Chiltern Street for a temporary period from 01 September 2025 until 31 August 2026.
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26/02432/FULL Awaiting decision
44 Chiltern Street London W1U 7QP
Installation of two external air conditioning condenser units positioned at ground floor level, on top of the existing light well roof.
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25/06012/ADV Granted
44 Chiltern Street London W1U 7QP
Display of three vinyls on the external ground floor windows for a temporary period of one year from 01 September 2025 until 31 August 2026.
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25/06933/FULL Awaiting decision
40 - 42 Chiltern Street London W1U 7QN
Installation of two wall mounted electric heaters, four wall lamps and two awnings. (Linked with 25/06934/ADV)
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25/06934/ADV Awaiting decision
40 - 42 Chiltern Street London W1U 7QN
Display of two non-illuminated fascia signs each measuring 0.50m x 0.12m and a non-illuminated hanging sign measuring 0.38m x 0.38m. (Linked with 25/06933/FULL)
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26/00867/ADV Awaiting decision
Ground Floor 32 Chiltern Street London W1U 7QQ
Display of three vinyls to ground floor windows measuring 2.41m x 1.75m, 1.42m x 0.6m and 0.34m x 0.6m for a temporary period of one year
Other full applications applications
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26/04824/ADFULL Granted
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Detailed design and specification of new blinds to NZH based on mock-up trials on-site. pursuant to condition 32 (i) of planning permission dated 8th April 2024 (23/00571/FULL).
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26/04829/ADFULL Granted
New Zealand House 80 Haymarket London SW1Y 4TE
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
29 Henstridge Place London NW8 6QD
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
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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.