The Mansion House Mansion House Street London EC4N 8BH

This site has had 5 applications since 2019: 5 approved, 0 refused.

• 24/00947/LBC Granted

  The Mansion House Mansion House Street London EC4N 8BH

  Proposed installation of Quattro Seal draughtproofing treatment to windows at The Mansion House.

  Decided 8 Nov 2024 Heritage and listed buildings
• 23/00909/LBC Granted

  The Mansion House Mansion House Street London EC4N 8BH

  Installation of replacement lighting in the form of two (2) sets of three (3) external LED floodlights to illuminate the stained glass windows on the Eastern and Western faces of the Egyptian Hall.

  Decided 12 Dec 2023 Heritage and listed buildings
• 19/01257/MDC Granted

  The Mansion House Mansion House Street London EC4N 8BH

  Details of the final colour finish for static dome, fully functional dome camera and ANPR camera and details of containment and cables to all cameras including routes and colour finish pursuant to conditions 2 (a) and (b) of planning permission dated 25th July 2019 (19/00182/FULL).

  Decided 20 Feb 2020 Conditions
• 19/01256/LDC Granted

  The Mansion House Mansion House Street London EC4N 8BH

  Details of the final colour finish for static dome, fully functional dome camera and ANPR camera and details of containment and cables to all cameras including routes and colour finish pursuant to conditions 2 (a) and (b) of listed building consent dated 25th July 2019 (19/00183/LBC).

  Decided 20 Feb 2020 Lawful development

1. 16 Oct 2023

   Received by City of London

2. 12 Dec 2023

   Decision issued: Approved

3. 29 Sep 2026

   Added to PlanIndex

City of London granted permission on 12 December 2023, 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.

• Lord Mayors Residence The Mansion House Mansion House Street London EC4N 8BH

  25/01205/FULL Submitted 2 Sep 2025 50 yards away

  Installation of Air Source Heat Pumps and Photovoltaic panels at roof level and associated infrastructure and works.

  Granted Full applications 2 docs

• Lord Mayors Residence The Mansion House Mansion House Street London EC4N 8BH

  25/01206/LBC Submitted 2 Sep 2025 50 yards away

  Installation of Air Source Heat Pumps and Photovoltaic panels at roof level and associated infrastructure and works.

  Granted Heritage and listed buildings 37 docs

• The Mansion House Mansion House Street London EC4N 8BH

  24/00947/LBC Submitted 30 Aug 2024 50 yards away

  Proposed installation of Quattro Seal draughtproofing treatment to windows at The Mansion House.

  Granted Heritage and listed buildings Windows or glazing 21 docs

• The Mansion House Mansion House Street London EC4N 8BH

  19/01257/MDC Submitted 4 Dec 2019 50 yards away

  Details of the final colour finish for static dome, fully functional dome camera and ANPR camera and details of containment and cables to all cameras including routes and colour finish pursuant to conditions 2 (a) and (b) of planning permission dated 25th July 2019 (19/00182/FULL).

  Granted Conditions 6 docs

• The Mansion House Mansion House Street London EC4N 8BH

  19/01256/LDC Submitted 4 Dec 2019 50 yards away

  Details of the final colour finish for static dome, fully functional dome camera and ANPR camera and details of containment and cables to all cameras including routes and colour finish pursuant to conditions 2 (a) and (b) of listed building consent dated 25th July 2019 (19/00183/LBC).

  Granted Lawful development 6 docs

• The Mansion House Mansion House Street London EC4N 8BH

  23/00909/LBC Submitted 17 Aug 2023 50 yards away

  Installation of replacement lighting in the form of two (2) sets of three (3) external LED floodlights to illuminate the stained glass windows on the Eastern and Western faces of the Egyptian Hall.

  Granted Heritage and listed buildings Windows or glazing 12 docs

• 25/01794/FULL Granted

  50 Cannon Street London EC4N 6JJ

  Refurbishment of existing office building with works including: creation of roof terraces, extension of existing lift shaft, replacement and relocation of existing rooftop plant and associated structures, changes to internal car and cycle parking arrangements, and improvements to the building's facade.

  Received 22 Dec, published by the council 24 Jul 2026 Full applications
• 26/00865/FULL Granted

  9 Newbury Street London EC1A 7HU

  Extensions and alterations to the rear and interior of the existing office building (Use Class E) to provide (i) upgraded office space at lower ground and ground floors; (ii) conversion from office to one studio flat and one 1-bed dwelling (Use Class C3) at 1st to 3rd floors; and (iii) provision of a 1-bed dwelling within a newly created two storey roof extension at 4th and 5th floors with a roof terrace at 4th floor.

  Received 16 Jun, published by the council 24 Jul 2026 Full applications
• 26/01110/FULL Granted

  200 Aldersgate Street London EC1A 4HD

  Retrospective application for the installation of 2no. condenser units to fifth floor roof.

  Received 3 Aug, published by the council 20 Aug 2026 Full applications
• 26/01109/FULL Granted

  100 Bishopsgate London EC2N 4AA

  Installation of artwork along the junction of the landscaped space and the walls of St Ethelburga's Centre of Reconciliation and Peace: Continuum by Halima Cassell.

  Received 3 Aug, published by the council 21 Aug 2026 Full applications
• 26/01053/FULL Granted

  49 Cheapside London EC2V 6AT

  Shopfront alteration at Unit 1A to replace existing solid blanking panel with clear glass

  Received 27 Jul, published by the council 20 Sep 2026 Full applications