Planning application
2026/2112/L
12 Chalcot Square London NW1 8YA
Proposal
Replacement of solar panels on the front elevation, 2x new sash windows on the rear lower and upper ground floors, new roof skylight to the rear 1st floor half-landing and internal alterations.
As published by the council, reference 2026/2112/L
Timeline
Dates from the published record
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14 May 2026
Received by Camden
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22 May 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 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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2026/1928/P Awaiting decision
12 Chalcot Square London NW1 8YA
Replacement of solar panels on the front elevation, 2x new sash windows on the rear lower and upper ground floors, new roof skylight to the rear 1st floor half-landing and internal alterations.
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2013/1946/L Granted
13 Chalcot Square London NW1 8YA
Erection of lower ground floor rear extension, installation of new windows to the rear elevation at lower ground and ground floor level and replacement of double doors and Juliet balcony with window at first floor level together with alterations to the internal layout (Class C3).
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2010/1147/P Granted
13 Chalcot Square London NW1 8YA
Excavation of front extension to basement level residential flat (Class C3).
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2013/1942/L Refused
13 Chalcot Square London NW1 8YA
External and internal alterations associated with erection of single storey rear extension at first floor level, replacement of Juliet balcony with window and alterations to existing rear windows at ground and first floor level to residential flat (Class C3).
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2013/5964/L Granted
13 Chalcot Square London NW1 8YA
Details pursuant to conditions 2 (detailing) & 3 (structural engineering) of listed building consent 2010/1149/L dated 22/06/2010 (Internal alterations associated with the conversion of two existing residential flats at first, second and third floor levels to provide a single five bedroom maisonette).
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2013/1393/P Refused
13 Chalcot Square London NW1 8YA
Single storey rear extension at first floor level, replacement of Juliet balcony with window and alterations to existing rear windows at ground and first floor level to residential flat (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).