Planning application
2016/3470/L
1 Leigh Street London WC1H 9EW
Proposal
Erection of a mansard roof extension and alterations to internal partitions at basement, ground and third floor levels.
As published by the council, reference 2016/3470/L
Timeline
Dates from the published record
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5 Oct 2016
Decision issued: Refused
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22 Jul 2026
Added to PlanIndex
What refusal means
The process from here
The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.
Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.
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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2012/6623/P Granted
Pavement adjacent to Commonwealth Hall 1-11 Cartwright Gardens London WC1H 9EB
Installation of 1 x telecommunications equipment cabinet on the public footpath.
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2016/2895/P Refused
1 Leigh Street London WC1H 9EW
External alterations including erection of a mansard roof extension.
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2010/1977/P Granted
1 Leigh Street Camden London WC1H 9EW
Change of use to a Hotel (Class C1)
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2020/2201/L Refused
1 Leigh Street London WC1H 9EW
Creation of a new enclosed reception area at ground floor level through the removal of the former small guest room Removal of former reception kiosk Introduction of a double guest room and en suite bathroom on the basement floor level in the former breakfast room, breakfast room moved to rear of building in former single guest room Introduction of a new fire escape corridor allowing escape access to the front of the building from the new basement bedroom, entailing: The introduction of a new partition between this corridor and the adjacent kitchen Swapping the location of the window and door on the basement's northern facade, re-using the door and replacing the non-original window frame with a new timber framed sash (Retrospective).
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2012/0188/L Refused
3 LEIGH STREET LONDON WC1H 9EW
Works in association with the replacement of existing roof extension staircase enclosure and installation of new enclosure with glazed balustrade associated with the use as a roof terrace ancillary to residential maisonette (Class C3).
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2011/6371/P Refused
3 LEIGH STREET LONDON WC1H 9EW
The replacement of existing roof extension staircase enclosure and installation of new enclosure with glazed balustrade associated with the use as a roof terrace to residential maisonette (Class C3).
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.
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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
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2026/2318/L Granted
90 Frognal London NW3 6XB
Structural strengthening of underground vault and underpinning of northern side of ground-floor boot room.
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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).