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Planning application

1 Great St Helen's London EC3A 6AP

Awaiting decision City of London 26/00839/FULL Full Planning Permission

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Installation of replacement ventilation and condenser plant, including associated ductwork and servicing infrastructure, at ground, first and eleventh floor levels.

As published by the council, reference 26/00839/FULL

Application record

Reference
26/00839/FULL
Type
Full Planning Permission
Status
Under Consideration
Received
9 Jun 2026
Validated
9 Jun 2026
Ward
Lime Street
Decision by
Delegated
Postcode
EC3A 6AP

Site history

Applications at this address on the City of London register

This site has had 6 applications since 2022: 5 approved, 0 refused.

  • 24/01022/MDC Granted

    1 Great St Helen's London EC3A 6AP

    Submission of (a) Details of all new facades to include fenestration, entrances, soffits, balustrades, solar shading, screening/plant enclosure, external surfaces within the site; (b) Details of all new materials and sample panel photographed on site to demonstrate that materials match where this is the intention; and (c) Details of all landscaping and green roofs pursuant to condition 5 of planning permission 21/01067/FULL dated 01/03/2022.

    Decided 17 Dec 2024 Conditions
  • 24/00065/ADVT Granted

    1 Great St Helen's London EC3A 6AP

    Installation and display of one non-illuminated hoarding advertisement measuring 2.39m high, 57 metres wide, situated at ground floor level, associated with the development of the site, for a temporary period until 31 August 2025.

    Decided 11 Apr 2024 Advertising
  • 23/00378/MDC Granted

    1 Great St Helen's London EC3A 6AP

    Submission of details of a Construction Logistics Plan pursuant to Conditions 3 of planning permission dated 01/03/2022 (ref: 21/01067/FULL)

    Decided 19 Feb 2025 Conditions
  • 23/00341/MDC Granted

    1 Great St Helen's London EC3A 6AP

    Submission of a Deconstruction Logistics Plan pursuant to Conditions 2 of planning permission dated 01/03/2022 (ref. 21/01067/FULL)

    Decided 19 Feb 2025 Conditions
  • 22/00789/MDC Granted

    1 Great St Helen's London EC3A 6AP

    Submission of a Plant Noise Impact Assessment pursuant to condition 7 of planning permission 21/01067/FULL dated 01 March 2022.

    Decided 27 Sep 2022 Conditions

Timeline

Dates from the published record

  1. 9 Jun 2026

    Received by City of London

  2. 24 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 4 August 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.

Who's behind it

Company information only, from the register and Companies House

Monmouth Planning Ltd Agent, a planning consultancy registered in London

Active · incorporated 2014 · London

83 applications on PlanIndex · across 10 councils · 88% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

Plans, drawings, consultee responses and the officer's report

15 documents on file for this application

  • COMMENTS - HISTORIC ENGLAND Consultee Comment · 25 Jun 2026
  • LOCATIONPLAN Site Plan · 09 Jun 2026
  • PROPOSED MECHANICAL SERVICES FIRST FLOOR VENTILIATION LAYOUT Drawing · 09 Jun 2026
  • ROOF LEVEL EXISTING MECHANICAL SERVICES Drawing · 09 Jun 2026
  • ROOF LEVEL PROPOSED MECHANICAL SERVICES Other · 09 Jun 2026
  • CIL FORM Other · 09 Jun 2026
  • COVER LETTER Cover Letter · 09 Jun 2026
  • ACOUSTIC PLANNING REPORT Report - Acoustic/Noise Report · 09 Jun 2026
  • APPLICATIONFORMREDACTED Application Form · 09 Jun 2026
  • EXTERNAL ELEVATIONS EXISTING AND PROPOSED Drawing · 09 Jun 2026
  • PROPOSED MECHANICAL SERVICES GROUND FLOOR VENTILIATION LAYOUT Drawing · 09 Jun 2026

Watch members (£5 a month) open the document list from here.

Open the documents

What 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 full applications in a median of 125 days. More in our guide to how long planning decisions take.

About full applications

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.

Nearby applications

Within 0.3 miles

  • 1 Great St Helen's London EC3A 6AP

    22/00789/MDC Submitted 19 Aug 2022 50 yards away

    Submission of a Plant Noise Impact Assessment pursuant to condition 7 of planning permission 21/01067/FULL dated 01 March 2022.

    Granted Conditions 5 docs
  • 1 Great St Helen's London EC3A 6AP

    24/01022/MDC Submitted 24 Sep 2024 50 yards away

    Submission of (a) Details of all new facades to include fenestration, entrances, soffits, balustrades, solar shading, screening/plant enclosure, external surfaces within the site; (b) Details of all new materials and sample panel photographed on site to demonstrate that materials match where this is the intention; and (c) Details of all landscaping and green roofs pursuant to condition 5 of planning permission 21/01067/FULL dated 01/03/2022.

    Granted Conditions Windows or glazing 17 docs
  • 1 Great St Helen's London EC3A 6AP

    23/00341/MDC Submitted 31 Mar 2023 50 yards away

    Submission of a Deconstruction Logistics Plan pursuant to Conditions 2 of planning permission dated 01/03/2022 (ref. 21/01067/FULL)

    Granted Conditions 23 docs
  • 1 Great St Helen's London EC3A 6AP

    23/00378/MDC Submitted 11 Apr 2023 50 yards away

    Submission of details of a Construction Logistics Plan pursuant to Conditions 3 of planning permission dated 01/03/2022 (ref: 21/01067/FULL)

    Granted Conditions 24 docs
  • 1 Great St Helen's London EC3A 6AP

    24/00065/ADVT Submitted 24 Jan 2024 50 yards away

    Installation and display of one non-illuminated hoarding advertisement measuring 2.39m high, 57 metres wide, situated at ground floor level, associated with the development of the site, for a temporary period until 31 August 2025.

    Granted Advertising 9 docs
  • O/S 1 Undershaft London EC3P 3DQ

    21/00248/FULLR3 Submitted 31 Mar 2021 50 yards away

    Temporary installation of two sculptures for a period of up to 24 months, as part of the 10th edition of Sculpture in the City, to be taken down on or before 29 May 2023: Harlequin Four by Mark Handforth and Cosmos by Eva Rothschild.

    Granted Full applications 12 docs

In City of London

  • 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
  • 26/00828/FULL Withdrawn

    88 Wood Street London EC2V 7DA

    Installation of a structure affixed to the existing south elevation at Level 12 roof terrace to provide a frame and enclosure for the installation of an LED screen and associated speakers.

    Received 8 Jun, published by the council 24 Jul 2026 Full applications
  • 26/00200/FULL Granted

    East India Arms Public House 67 Fenchurch Street London EC3M 4BR

    Installation of 1no. external lantern and 3no. external trough lights.

    Received 9 Feb, published by the council 24 Jul 2026 Full applications