Planning application
2025/4416/P
38 - 40 Windmill Street London W1T 2BE
Proposal
Certificate of lawfulness (proposed) for strengthening works at fourth floor level.
As published by the council, reference 2025/4416/P
Timeline
Dates from the published record
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15 Oct 2025
Received by Camden
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20 Oct 2025
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 at appeal
The process from here
This application is at appeal, which passes the decision from the council to the national planning inspectorate, or in Scotland usually to a local review body first. The appeal considers the scheme afresh against the same policies.
Anyone who commented on the original application is normally notified and can comment again within the appeal deadline. Appeal decisions take months rather than weeks, and the outcome replaces the council's decision.
About lawful development applications
How this application type works
A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.
Nearby applications
Within 500 metres
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2012/4984/P Granted
38 Windmill Street London W1T 2JX
Details of cycle storage required by condition 3 of planning permission 2010/5167/P dated 05/05/2011 for change of use of third floor offices (class B1a) and vacant first and second floors (Class B8) to create 6x two-bedroom flats (class C3), including rear extensions at first, second, third and fourth floors and associated external alterations.
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2023/4907/P Granted
38-40 Windmill Street London W1T 2BE
Siting of a caravan for use, incidental to the lawful residential use of the land, at the fourth floor.
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2023/3865/P Withdrawn
38-40 Windmill Street London W1T 2BE
Siting of a caravan for use, ancillary to the lawful residential use of the land, at the fourth floor
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2013/4588/P Refused
38 Windmill Street London W1T 2JX
Extensions to the front at fourth and fifth floor level including remodelling the existing elevations and reconfiguring the 2 flats (Class C3).
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2025/0675/P Granted
38-40 Windmill Street London W1T 2BE
Certificate of lawfulness (proposed) for conversion of two flats into one residential unit.
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2024/0862/P Refused
38-40 Windmill Street London W1T 2BE
Siting of a shipping container, for use incidental to the lawful residential use of the land, at the fourth-floor level.
Other lawful development applications
In Camden
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2026/3230/P Awaiting decision
6 Lyndhurst Road London NW3 5PX
Amalgamation of the existing lower ground floor flat and upper maisonette into a single dwellinghouse, involving the formation of a new internal staircase and associated internal alterations.
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2026/2602/P Granted
5 Brookfield Park London NW5 1ES
Erection of a single storey outbuilding in rear garden for purposes incidental to the enjoyment of the dwellinghouse.
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2026/2586/P Granted
Flat Ground Floor 96 Agar Grove London NW1 9TL
Use of rear flat roof area at raised ground level as an amenity terrace, consisting of decking, platform, safety railings and external access door.
-
2026/0791/P Granted
7 A Netherhall Gardens London Camden NW3 5RN
Proposed single storey, timber framed, timber clad garden studio located in the rear garden.
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2026/2569/P Granted
16 Gladys Road London NW6 2PX
Amalgamation of two flats.