The Leadenhall Building 122 Leadenhall Street London EC3V 4AB

This site has had 2 applications since 2024: 2 approved, 0 refused.

• 24/00652/FULLR3 Granted

  The Leadenhall Building 122 Leadenhall Street London EC3V 4AB

  Temporary installation of an artwork - Deluge by Hilary Jack - for a period of up to two years, suspended within the undercroft of the Leadenhall Building, to be taken down on or before 08 June 2026.

  Decided 2 Aug 2024 Full applications

1. 28 Jul 2025

   Received by City of London

2. 28 Nov 2025

   Decision issued: Approved

3. 24 Jul 2026

   Added to PlanIndex

City of London granted permission on 28 November 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• The Leadenhall Building 122 Leadenhall Street London EC3V 4AB

  24/00652/FULLR3 Submitted 21 Jun 2024 50 yards away

  Temporary installation of an artwork - Deluge by Hilary Jack - for a period of up to two years, suspended within the undercroft of the Leadenhall Building, to be taken down on or before 08 June 2026.

  Granted Full applications 4 docs

• 1 Leadenhall Street London EC3V 4SL

  2018/02073/OBS Submitted 20 Jun 2018 50 yards away

  EIA request for Scoping Opinion to Demolish the existing building and construct a 31 storey building for office use (Class B1) with retail floorspace (Class A1-A4), an office lobby and loading bay at ground floor, an area of retail floorspace (Class A1-A3) at fourth floor level, a publicly accessible terrace at fourth floor level, five levels of plant on the top floors, one level of plant (with mezzanine level) at the mid-levels, and one level of ancillary basement plant (with mezzanine level), and cycle parking and cycle facilities at mezzanine level.

  Granted Demolition 12 docs

• 140 Leadenhall Street London EC3V 4QT

  26/00315/LBC Submitted 3 Mar 2026 50 yards away

  Proposed replacement plant, plant enclosure, metal screen, proposed decking and mesh infill to existing balustrade at level 04, and replacement plant and enclosure at mezzanine level

  Granted Heritage and listed buildings Extension 24 docs

• 140 Leadenhall Street London EC3V 4QT

  26/00314/FULL Submitted 3 Mar 2026 50 yards away

  Proposed replacement plant, plant enclosure, metal screen, proposed decking and mesh infill to existing balustrade at level 04, and replacement plant and enclosure at mezzanine level

  Granted Full applications Extension 24 docs

• 140 Leadenhall Street London EC3V 4QT

  25/00956/ADVT Submitted 21 Jul 2025 50 yards away

  Replacement of building number signage.

  Granted Advertising 33 docs

• 140 Leadenhall Street London EC3V 4QT

  25/00955/FULL Submitted 21 Jul 2025 50 yards away

  External and internal alterations including: (i) structural repair works. (ii) minor alterations to external facade. (iii) refurbishment works. (iv) installation of louvres and roof level plant enclosure. (v) installation of replacement signage. (vi) and all enabling works associated with the development

  Granted Full applications 37 docs

• 26/01083/FULL Granted

  Offices Chapter House St Paul's Churchyard London EC4M 8AD

  Alterations to undercroft of St Paul's Cathedral and minor alterations to Chapter House including (i) Installation of a new passenger lift and associated raised platform within the external contemporary undercroft of St Paul's Cathedral to provide step-free access between the Chapter House and the undercroft (ii) extension of the existing step at the eastern exit of the Chapter House following partial demolition of existing external staircase, landing, and railings to provide level access and replacement of existing security gate (iii) raising the floor level and removal of associated stairs at below-ground level and installation of external, open platform lift in undercroft (No other works to the Cathedral or wider undercroft).

  Received 29 Jul, published by the council 19 Aug 2026 Full applications
• 26/01051/FULL Granted

  55 Mark Lane London EC3R 7NE

  Application under S73 of the Town and Country Planning Act 1990 (as amended) to allow the removal of condition 2 (refuse collection) of planning permission 15/00931/FULL dated 29/10/2015.

  Received 27 Jul, published by the council 9 Aug 2026 Full applications
• 24/00544/FULL Granted

  6 -7 New Street London EC2M 4TP

  Conversion of two dwelling houses into eight studio flats and one two bedroom flat (ii) external alterations to windows on rear elevation of number 7 and mansard roof of number 6.

  Received 28 May, published by the council 30 Oct 2026 Full applications
• 26/00858/FULL Granted

  Condor House 10 St Paul's Churchyard London EC4M 8AL

  Replacement of existing vertical sash window frames and glazing on north, east and northwestern facades with fixed glazing units.

  Received 12 Jun, published by the council 24 Jul 2026 Full applications
• 26/01104/FULL Granted

  30 - 34 Moorgate London EC2R 6DA

  Refurbishment and alterations comprising, (i) alterations to plant equipment at roof level, (ii) installation of CCTV cameras, (iii) alterations to ground floor entrances, and (iv) removal of 2no. ground floor doors and installation of glazing, and associated works.

  Received 31 Jul, published by the council 24 Aug 2026 Full applications