Planning application
2026/1635/P
31 Percy Street London W1T 2DD
Proposal
Erection of replacement ground floor rear extension to provide additional office floorspace, formation of roof terrace at first floor level, minor external alterations to rear elevation and a new condenser unit at roof terrace level.
As published by the council, reference 2026/1635/P
Timeline
Dates from the published record
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23 Apr 2026
Received by Camden
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29 Apr 2026
Validated
Checked as complete and ready for consideration.
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24 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 Camden 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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2010/4227/P Refused
31 Percy Street London W1T2DD
Cantilevered extension at rear first floor level of the existing office.
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2013/7572/P Granted
31 Percy Street London W1T 2DD
Erection of part one, part two storey lower ground floor rear extension to form 2 bedroom maisonette (Class C3) following demolition of existing single storey lower ground floor rear extension and associated excavation.
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2019/6446/A Granted
Offices And Premises At Basement 31 Percy Street London W1T 2DD
Display of non-illuminated hanging sign.
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2011/5047/P Refused
31 Percy Street London W1T 2DD
Cantilevered extension at rear first floor level of the existing office.
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2013/4963/P Granted
31 Percy Street London W1T 2DD
Rear extension at ground and 1st floor (Class B1a office use).
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2021/4408/P Granted
30 Percy Street London W1T 2DB
Amendment to planning permission ref 2019/4241/P dated 28/08/2020, as amended by ref 2021/1374/P dated 13/08/2021 (for External alterations including replacement rear extension at ground floor and basement level with roof terrace above, change of use of existing flat at second and third floor level to office space and use of basement level as social enterprise space), namely to replace a small glazed area within the basement roof of the approved rear extension by a solid floor.
Other full applications applications
In Camden
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2026/0743/P Granted
34-42 Middlesex House Cleveland Street London W1T 4JE
Details pursuant to Condition 6 (Living Roof) of planning permission 2024/2020/P granted on 12/09/2024 "(Minor refurbishment and rooftop works including: upgraded entrance and reception area; new cycle storage and associated end of trip facilities; new/replaced rooftop plant and plant enclosures; creation of a rooftop amenity area with pavilion structure; hard and soft rooftop landscaping; and all associated and ancillary works)."
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2026/3202/P Awaiting decision
Flat 1 94 Goldhurst Terrace London NW6 3HS
Erection of a single storey rear extension.
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2026/0335/P Granted
216A West End Lane London NW6 1UX
Conversion of 1 x 7 bedroom flat (C3) and 1 x 2 bedroom flat (C3) to 1 x 7 bedroom House in Multiple Occupation (Sui-generis) and 1 x 1 bedroom flat (C3) and installation of four rooflights
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2026/3229/P Awaiting decision
52 Neal Street London WC2H 9PA
Alterations to the shopfront and installation of awnings.
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2026/2160/P Granted
120 College Place London NW1 0DJ
Erection of a rear roof extension, formation of a rear roof terrace and installation of 2x rooflights to front roof slope, and associated works.