Planning application
2021/0122/L
25 John's Mews London WC1N 2NZ
Proposal
Erection of basement extension and installation of ventilation riser at roof level. Internal alterations
As published by the council, reference 2021/0122/L
Timeline
Dates from the published record
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22 Nov 2021
Decision issued: Granted
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22 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 heritage and listed buildings applications
How this application type works
Heritage applications concern listed buildings and conservation areas. Listed building consent is needed for works, inside or out, that affect the special interest of a listed building, and carrying out such works without consent is a criminal offence. The council weighs harm to the heritage asset against any public benefit of the proposal.
More on heritage and listed buildings applications in our guide
Nearby applications
Within 500 metres
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2022/3610/L Granted
25 John's Mews Holborn London WC1N 2NZ
Repair and replacement of existing roof finishes.
-
2013/4804/P Granted
25 Johns Mews London WC1N 2NZ
Installation an air conditioning plant at roof level.
-
2013/5542/L Granted
25 Johns Mews London WC1N 2NZ
Installation an air conditioning plant at roof level.
-
2024/4400/P Granted
25 John's Mews London WC1N 2NS
Confirmation that planning permission 2020/5883/P and listed building consent 2021/0122/L (dated 19/11/2021 and 22/11/2021) for erection of basement extension and installation of ventilation riser at roof level. Internal alterations were lawfully implemented by the carrying out of material operations prior to the expiry of the permissions.
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2020/5883/P Granted
25 John's Mews London WC1N 2NZ
Erection of basement extension and installation of ventilation riser at roof level
-
2013/3543/L Granted
25 John's Mews London WC1N 2NZ
Details of secondary glazing and windows required by condition no. 2 of listed building consent 2012/5150/L granted on 26th March 2012 for works associated with the change of use from office at ground floor and flat on first floor to a single dwellinghouse.
Other heritage and listed buildings applications
In Camden
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2026/3248/L Awaiting decision
15 Eton Villas London NW3 4SG
Single storey rear extension, internal reconfigurations, installation of double-glazed windows and doors, new air-conditioning units, landscaping to rear garden and erection of outbuilding amongst other alterations to the property.
-
2026/3213/L Awaiting decision
51, 53, 55, 57 Lamb's Conduit Street London Camden WC1N 3NB
Installation of gas infrastructure including an external gas riser, associated pipework, and internal alterations comprising the relocation of gas meters and associated connections
-
2026/2318/L Granted
90 Frognal London NW3 6XB
Structural strengthening of underground vault and underpinning of northern side of ground-floor boot room.
-
2026/2136/L Granted
45 Downshire Hill London NW3 1NU
Proposed repair and replacement of front elevation windows with matching single glazed timber sash units. Replacement modern French doors in slim-profile double glazing. Rear windows retained, and repaired as required.
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2026/2122/L Granted
6 Royal College Street London NW1 0TH
Various internal and external changes, including replacement and alteration to timber windows, adjustments to internal layout, installation of fire-rated doors and emergency lighting, relocation and rearrangement of bathroom and kitchen (retrospective).