Planning application
25/05281/FULL
1B Chester Row London SW1W 9JF
Proposal
Extension at rear roof level, relocation of existing plant enclosure, simplification of roofscape including new roof maintenance access hatch.
As published by the council, reference 25/05281/FULL
Timeline
Dates from the published record
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29 Jul 2025
Received by Westminster
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24 Sep 2025
Decision issued: Application Permitted
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21 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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26/04485/FULL Awaiting decision
1B Chester Row London SW1W 9JF
New basement extension (under the rear half of the building) to enlarge the existing basement (beneath the front half of the building), including creation of a new lightwell along the rear of the building.
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25/07677/FULL Awaiting decision
First Floor Flat 75 - 77 Elizabeth Street London SW1W 9PJ
Installation of replacement sashes within the existing box frames including new slimline double glazing and integral glazing bars to match the existing fenestration to the front and rear at first floor level; and other associated works. Linked with 25/07678/LBC
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25/07678/LBC Awaiting decision
First Floor Flat 75 - 77 Elizabeth Street London SW1W 9PJ
Installation of replacement sashes within the existing box frames including new slimline double glazing and integral glazing bars to match the existing fenestration to the front and rear at first floor level; and other associated works. Linked with 25/07677/FULL
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25/09022/LBC Granted
1 Chester Row London SW1W 9JF
Installation of scaffold fixings, removal and replacement of render and structural strengthening to cracks in underlying brickwork to front elevation.
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26/01481/ADFULL Granted
First Floor Flat 75 - 77 Elizabeth Street London SW1W 9PJ
Detailed drawings (including sections) of the replacement windows pursuant to Condition 4 of planning permission dated 19 February 2026 (25/07677/FULL).
-
26/01482/ADLBC Granted
First Floor Flat 75 - 77 Elizabeth Street London SW1W 9PJ
Detailed drawings (including sections) of the replacement windows pursuant to Condition 3 of listed building consent dated 19 February 2026 (25/07678/LBC).
Other full applications applications
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26/04824/ADFULL Granted
New Zealand House 80 Haymarket London SW1Y 4TE
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
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.