Planning application
25/01703/LBC
St Mary Abchurch House 123 - 127 Cannon Street London EC4N 5AU
Proposal
Amendment to the ground floor Cannon Street elevation to accommodate a revised smoke vent; Spatial reconfiguration of the ground floor lobby including installation of a dropped ceiling
As published by the council, reference 25/01703/LBC
Timeline
Dates from the published record
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4 Dec 2025
Received by City of London
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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 City of London 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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26/00109/NMA Awaiting decision
St Mary Abchurch House 123 - 127 Cannon Street London EC4N 5AU
Non material amendments under section 96A of the Town and Country Planning Act 1990 (as amended) to planning permission ref 24/00995/FULL (dated 12/09/2024), to: (i) accommodate a revised smoke vent.
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26/00024/ADVT Awaiting decision
St Mary Abchurch House 123 - 127 Cannon Street London EC4N 5AU
Installation and display of externally illuminated banner advertising on temporary hoarding, including: (i) one PVC banner measuring 700mm x 1075mm at a height of 3.5m on the southern elevation, (ii) one PVC banner measuring 700mm x 3000mm at a height of 3.5m on the southern elevation, (iii) two PVC banners measuring 700mm x 3000mm at a height of 3.5m on the southern elevation, (iv) two PVC banners measuring 650mm x 1380mm at a height of 5.7m, on the eastern and western elevations (v) two PVC banners measuring 700mm x 2200mm at a height of 4.3m on the eastern elevation (Abchurch Yard).
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26/00408/FULL Granted
Offices 131 - 133 Cannon Street London EC4N 5AX
Change of use of the basement and first to fifth floors of this building from office to an apart-hotel (Use Class C1) along with minor changes to access at ground floor level to accommodate bin storage, servicing and fire safety and M&E plant at 6th floor and roof void levels.
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25/01320/FULL Refused
131 - 133 Cannon Street London EC4N 5AX
Change of use from Class E (g)(i) to residential C3 at first to sixth floor to provide 1 x 3 bedroom apartment with amenity space at sixth floor, Class E at ground floor and basement, and works associated with the scheme including provision of a lift overrun at roof level, refuse storage, cycle store, plant and alterations to fenestration.
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25/01244/FULL Granted
The Guild Church of St Mary Abchurch Abchurch Yard London EC4N 7BA
Installation of external lighting.
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25/01290/LBC Granted
117 Cannon Street London EC4N 5AX
Alterations to a Listed building including: (i) re-decoration of shopfront and stone facade, (ii) internal reconfigurations and installation of counter, (iii) removal of existing internal door and re-tiling of bathroom. In associated with application for advertisement consent (ref. 25/01287/ADVT).
Other heritage and listed buildings applications
In City of London
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26/00746/LBC Granted
Offices 4 Moorgate London EC2R 6DA
Internal refurbishment works to communal areas of existing office building at basement and ground levels and stair and lift cores, including removal and replacement of existing glazed secondary entrance door on Moorgate; refurbishment of existing external entrances on Moorgate and King Arms Yard Entrance; installation of a condenser unit in the basement lightwell; and retrospective consent for replacement of two passenger lifts.
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26/00490/LBC Granted
312 Cromwell Tower Barbican London EC2Y 8NB
Refurbishment of the existing bathroom and separate shower/WC, including replacement sanitary ware, finishes, and fittings, together with the installation of new full-height internal doors to both rooms.
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26/00785/LBC Granted
5 St Michael's Alley London EC3V 9DS
Internal alterations at basement level of Jamaica Wine House associated with refurbishment of customer bar areas and toilets.
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26/00621/LBC Granted
89 Speed House Barbican London EC2Y 8AU
Internal alterations to a fifth-floor flat within Speed House, including the partial removal of the existing non-structural outer kitchen partition wall to create open-plan between the kitchen and living room.
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26/00522/LBC Granted
The Irish Chamber 1 Guildhall Yard London EC2V 5AE
Alterations to a Listed Building including: (i) upgrades to mechanical heating systems, (ii) upgrade to and provision of new ground floor W/C's, (iii) upgrades to electrical wiring, lighting, alarm systems, (iv) installation of L.E.D lighting to replace existing on all floor levels, (v) installation of floor boxes on Ground and First floor levels, (vi) sustainability improvements including sealant to windows (viii) installation of a replacement kitchen alongside retained existing cupboards, (ix) installation of carpet, and; (x) associated minor repairs, redecorating and removal of redundant wiring.