Planning application
St Mary Abchurch House 123 - 127 Cannon Street London EC4N 5AU
Relates to 24/00995/FULL
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Non-material amendment under Section 96A of the Town and Country Planning Act 1990 (as amended) to planning permission 24/00995/FULL dated 23 December 2024 to: (i) revise the ground floor entrance arrangement, maintenance requirements, ventilation louvres and (ii) revise the sixth floor layout to include staff WC, increase the plant area, amend fire escape access.
As published by the council, reference 26/01134/NMA
Application record
- Reference
- 26/01134/NMA
- Category
- Amendments
- Status
- Under Consideration
- Received
- 6 Aug 2026
- Validated
- 6 Aug 2026
- Ward
- Candlewick
- Decision by
- Delegated
- Postcode
- EC4N 5AU
Site history
Applications at this address on the City of London register
This site has had 9 applications since 2022: 4 approved, 0 refused.
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26/01212/LBC Awaiting decision
St Mary Abchurch House 123 - 127 Cannon Street London EC4N 5AU
Installation of internal secondary glazing to the existing windows at first to fifth-floor levels
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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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25/01703/LBC Awaiting decision
St Mary Abchurch House 123 - 127 Cannon Street London EC4N 5AU
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
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24/00995/FULL Granted
St Mary Abchurch House 123 - 127 Cannon Street London EC4N 5AU
The conversion of the existing commercial accommodation (Class E) at first to fifth floors into 30 x serviced apartments (Class C1), internal alterations associated with the change of use, the creation a new lobby space with waste and bicycle storage space at ground floor level, installation of a partition to the rear of the ground floor commercial (Class E) unit (retrospective consent), installation of mechanical plant and machinery at ground to the rear of the ground floor commercial (Class E) unit with access from a new door to Abchurch Yard, alterations to the existing ground floor entrance door, alterations at roof level including the provision of replacement plant and machinery, and other associated works.
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24/00996/LBC Granted
St Mary Abchurch House 123 - 127 Cannon Street London EC4N 5AU
The conversion of the existing commercial accommodation (Class E) at first to fifth floors into 30 x serviced apartments (Class C1), internal alterations associated with the change of use, the creation a new lobby space with waste and bicycle storage space at ground floor level, installation of a partition to the rear of the ground floor commercial (Class E) unit (retrospective consent), installation of mechanical plant and machinery at ground to the rear of the ground floor commercial (Class E) unit with access from a new door to Abchurch Yard, alterations to the existing ground floor entrance door, alterations at roof level including the provision of replacement plant and machinery, and other associated works.
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22/01031/LBC Granted
St Mary Abchurch House 123 - 127 Cannon Street London EC4N 5AU
The conversion of the existing commercial accommodation (Class E) at first to fifth floors into 20 x serviced apartments (Class C1), internal alterations associated with the change of use, the creation a new lobby space with waste and bicycle storage space at ground floor level, alterations to the existing ground floor entrance door, alterations at roof level including the provision of replacement plant and machinery and a single storey lounge area with associated terrace space, and other associated works.
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22/01030/FULL Granted
St Mary Abchurch House 123 - 127 Cannon Street London EC4N 5AU
The conversion of the existing commercial accommodation (Class E) at first to fifth floors into 20 x serviced apartments (Class C1), internal alterations associated with the change of use, the creation a new lobby space with waste and bicycle storage space at ground floor level, alterations to the existing ground floor entrance door, alterations at roof level including the provision of replacement plant and machinery and a single storey lounge area with associated terrace space, and other associated works.
Timeline
Dates from the published record
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6 Aug 2026
Received by City of London
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18 Aug 2026
Added to PlanIndex
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Decision
Awaiting decision
Decision expected by 1 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
City of London took a median of 85 days over the applications it decided in the last year.
Related applications
Cases linked to this one on the register
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24/00995/FULL Granted
St Mary Abchurch House 123 - 127 Cannon Street London EC4N 5AU
The conversion of the existing commercial accommodation (Class E) at first to fifth floors into 30 x serviced apartments (Class C1), internal alterations associated with the change of use, the creation a new lobby space with waste and bicycle storage space at ground floor level, installation of a partition to the rear of the ground floor commercial (Class E) unit (retrospective consent), installation of mechanical plant and machinery at ground to the rear of the ground floor commercial (Class E) unit with access from a new door to Abchurch Yard, alterations to the existing ground floor entrance door, alterations at roof level including the provision of replacement plant and machinery, and other associated works.
Who's behind it
Company information only, from the register and Companies House
Agent on file, registered in London
660 applications on PlanIndex · across 83 councils · 95% granted
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itApplicant on file
1 application on PlanIndex
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
Plans, drawings, consultee responses and the officer's report
14 documents on file for this application
- PROPOSED FRONT ELEVATION (A)
- PROPOSED GROUND FLOOR
- DESIGN & ACCESS STATEMENT
- 0182-S8F-XX-CO-DR-T-0004-PROPOSED L06 PLAN
- 0182-S8F-XX-CO-DR-T-0005-PROPOSED ROOF PLAN
- 0182-S8F-XX-CO-DR-T-0007-PROPOSED EAST ELEVATION
- 0182-S8F-XX-CO-DR-T-0008-PROPOSED REAR ELEVATION
- 0182-S8F-XX-CO-DR-T-0009-PROPOSED WEST ELEVATION
- DELIVERY AND SERVICING PLAN ADDENDUM (JULY 2026)
- FIRE STRATEGY
- HERITAGE STATEMENT ADDENDUM (JULY 2026)
- COVER LETTER
- APPLICATIONFORMREDACTED
- SITE PLAN
Trade members open them from here.
Open the documentsWhat happens while it is decided
This application is with City of London for determination, against a statutory target of eight weeks. Over the last year City of London decided amendment applications in a median of 73 days. More in our guide to how long planning decisions take.
About amendment applications
An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.
Nearby applications
Within 500 metres
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St Mary Abchurch House 123 - 127 Cannon Street London EC4N 5AU
100% historically approved · decision due ~21 Oct
Installation of internal secondary glazing to the existing windows at first to fifth-floor levels
Awaiting decision Heritage and listed buildings Windows or glazing -
131 - 133 Cannon Street London EC4N 5AX
Change of use from Class E at basement and ground floor to cafe/bar Class E(b) and from office Class E(gi) to residential C3 at first to fifth floor for 1 x studio flat and 2 x maisonette flats with shared amenity space at sixth floor, external alterations, cycle store, refuse storage, plant room and other works associated with the proposed development.
Refused Full applications New dwelling 43 docs -
St Mary Abchurch House 123 - 127 Cannon Street London EC4N 5AU
100% historically approved · decision due ~23 Mar
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.
Awaiting decision Amendments 16 docs -
St Mary Abchurch House 123 - 127 Cannon Street London EC4N 5AU
100% historically approved · decision due ~29 Jan
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
Awaiting decision Heritage and listed buildings 17 docs -
St Mary Abchurch House 123 - 127 Cannon Street London EC4N 5AU
The conversion of the existing commercial accommodation (Class E) at first to fifth floors into 30 x serviced apartments (Class C1), internal alterations associated with the change of use, the creation a new lobby space with waste and bicycle storage space at ground floor level, installation of a partition to the rear of the ground floor commercial (Class E) unit (retrospective consent), installation of mechanical plant and machinery at ground to the rear of the ground floor commercial (Class E) unit with access from a new door to Abchurch Yard, alterations to the existing ground floor entrance door, alterations at roof level including the provision of replacement plant and machinery, and other associated works.
Granted Full applications New dwelling 74 docs -
St Mary Abchurch House 123 - 127 Cannon Street London EC4N 5AU
The conversion of the existing commercial accommodation (Class E) at first to fifth floors into 30 x serviced apartments (Class C1), internal alterations associated with the change of use, the creation a new lobby space with waste and bicycle storage space at ground floor level, installation of a partition to the rear of the ground floor commercial (Class E) unit (retrospective consent), installation of mechanical plant and machinery at ground to the rear of the ground floor commercial (Class E) unit with access from a new door to Abchurch Yard, alterations to the existing ground floor entrance door, alterations at roof level including the provision of replacement plant and machinery, and other associated works.
Granted Heritage and listed buildings New dwelling 68 docs
Other amendment applications
In City of London
-
26/01230/NMA Awaiting decision
Allianz House 60 Gracechurch Street London EC3V 0HR
Non material amendment under section 96A of the Town and Country Planning Act 1990 (as amended) for amendments to Condition 35 (Design), Condition 49 (Accessible Car Parking Space), Condition 50 (Cycle Parking and Facilities), Condition 59 (Floor Areas) and Condition 61 (Approved Plans) of planning permission dated 15.05.2025 (ref: 24/00743/FULEIA as amended).
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26/01228/NMA Awaiting decision
5 Chancery Lane London WC2A 1LG
Non-Material Amendment under S96A of the Town and Country Planning Act 1990 (as amended) to Planning Permission 20/00546/FULMAJ dated 16.09.2021, as amended by 22/01051/NMA dated 12.01.2023, 24/00123/NMA dated 01.03.2024, 24/01244/NMA dated 23.12.2024 and 25/00769/NMA dated 28.08.2025, to vary Condition 40 (Approved Drawings) to allow for the amendments to the rooftop plant structure and louvres; amendments to fourth floor windows to south elevation; and amendments to height of ground floor plant screen.
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26/01150/NMA Awaiting decision
11-13 & 19 Throgmorton Avenue, 21 Austin Friars And 23 Great Winchester Street London EC2N 2HE
Application for a non-material amendment under Section 96A of the Town and Country Planning Act 1990 (as amended) to planning permission reference 4931A (dated 21 April 1986) for the removal of condition 3 restricting the building over of the atrium void area other than by a glazed roof.
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26/01146/NMA Awaiting decision
115 - 123 Houndsditch London EC3A 7BU
Non-material amendment under Section 96A of the Town and Country Planning Act 1990 (as amended) for amendments to Condition 78 (Floorspace) and Condition 79 (Approved Plans) to accommodate design changes to the pedestrian and cycle entrances and associated envelope and layout changes, of planning permission dated 19.08.2025 (ref: 25/00276/FULEIA).
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26/01147/NMA Awaiting decision
11-13 & 19 Throgmorton Avenue, 21 Austin Friars And 23 Great Winchester Street London EC2N 2HE
Application for a non-material amendment under Section 96A of the Town and Country Planning Act 1990 (as amended) to planning permission reference 4931B (dated 16 April 1987) for the removal of the condition restricting the building over of the atrium void area other than by a glazed roof.