Planning application
05/03009/FULL
4 Old Park Lane London W1K 1QW
Proposal
Single storey roof extension for office purposes (Class B1), refurbishment including alterations to front and rear windows and re-cladding of side elevation.
As published by the council, reference 05/03009/FULL
Timeline
Dates from the published record
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19 Apr 2005
Received by Westminster
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9 May 2005
Validated
Checked as complete and ready for consideration.
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26 Jul 2005
Decision issued: Application Permitted
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29 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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06/02453/ADFULL Granted
4 Old Park Lane London W1K 1QW
Details of replacement windows to the Old Park Lane elevation pursuant to Condition 7 of planning permission dated 26 July 2005 (RN: 05/03009).
-
06/02189/ADFULL Granted
4 Old Park Lane London W1K 1QW
Details of the northwest facing brickwork and quoins pursuant to Condition 5 of planning permission dated 26 July 2005 (RN: 05/03009).
-
08/02340/ADV Decided
4 Old Park Lane London W1K 1QW
Display of a non-illuminated fascia sign.
-
05/03010/CAC Decided
4 Old Park Lane London W1K 1QW
Demolition of roof and chimneys; internal walls, stairs, ground floor and basement floor; and removal of painted render flank wall skin.
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06/02933/ADFULL Granted
4 Old Park Lane London W1K 1QW
Provision of a structural engineers report pursuant to Condition 8 of planning permission dated 26 July 2005 (RN 05/03009).
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26/04490/LBC Awaiting decision
128 Piccadilly London W1J 7PY
Erection of a single storey extension at 4th floor level facilitating link between existing bedrooms. and internal alterations to door openings and alterations to existing structure to incorporate extension. (Linked with 26/04490/LBC)
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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
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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.