Challoner House, 19-21 Clerkenwell Close, London, EC1R 0RR

This site has had 2 applications since 2022: 2 approved, 0 refused.

• P2022/3521/AOD Granted

  Challoner House, 19-21 Clerkenwell Close, London, EC1R 0RR

  Approval of Details pursuant to conditions 3 (materials) & 8 (obscure glazing) of planning permission reference: P2021/3358/FUL, dated:19/08/2022, Reinstatement of 2 pitched roofs and gables at third floor level to No. 19 Clerkenwell Close with new louvred plant enclosure beyond, increase in height of Mansard Roof extension to roof of Nos. 20 and 21 Clerkenwell Close, provision of a green roof at first floor level at rear of Nos. 20 and 21 Clerkenwell Close, thermal upgrade to existing flat roof across Nos. 19, 20 and 21 Clerkenwell Close; historic reinstatements, new replacement windows to Nos. 19, 20 and 21 Clerkenwell Close, altered fenestrations, new side windows to Nos. 20 and 21 Clerkenwell Close, reconfiguration of internal layouts, relocation of plant and other minor external alterations and associated works

  Decided 25 May 2023 Conditions

1. 27 Jan 2023

   Received by Islington

2. 16 Feb 2023

   Validated

   Checked as complete and ready for consideration.

3. 13 Apr 2023

   Decision issued: Approve with conditions

4. 18 Aug 2026

   Added to PlanIndex

Islington granted permission on 13 April 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.

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.

• Challoner House, 19-21 Clerkenwell Close, London, EC1R 0RR

  P2022/3521/AOD Submitted 3 Oct 2022 50 yards away

  Approval of Details pursuant to conditions 3 (materials) & 8 (obscure glazing) of planning permission reference: P2021/3358/FUL, dated:19/08/2022, Reinstatement of 2 pitched roofs and gables at third floor level to No. 19 Clerkenwell Close with new louvred plant enclosure beyond, increase in height of Mansard Roof extension to roof of Nos. 20 and 21 Clerkenwell Close, provision of a green roof at first floor level at rear of Nos. 20 and 21 Clerkenwell Close, thermal upgrade to existing flat roof across Nos. 19, 20 and 21 Clerkenwell Close; historic reinstatements, new replacement windows to Nos. 19, 20 and 21 Clerkenwell Close, altered fenestrations, new side windows to Nos. 20 and 21 Clerkenwell Close, reconfiguration of internal layouts, relocation of plant and other minor external alterations and associated works

  Granted Conditions Extension Loft or dormer +1 13 docs

• 47, Flat A, Clerkenwell Close, London, EC1R 0AJ

  P2025/0073/TRE Submitted 9 Jan 2025 50 yards away

  99% historically approved · decision due ~12 Mar

  Tree location - rear garden Access - rear gate/slide mortice lock to enter GRP1 - Ivy on wall and adjacent building and fence. Sever and remove as much Ivy as practically possible. GRP2 - Beech Box hedge Reduce height by 0.5m and tidy sides. GRP3 - Ivy on Boundary wall Sever and remove as much Ivy as practically possible. GRP4 - Wild Rose on rear boundary fence Crown lift to 4m, Face back encroachment across parking area by 2m back towards fence line. T1 - Approx. H4 S2 10DBH self-set Birch Fell as close as possible to ground level and apply appropriate herbicide T2 - Shrub Reduce height to fence height and tidy sides.

  Decided Trees
  Small domestic

• 34 Farringdon Lane and 22–23 Clerkenwell Close, London, EC1R 3AX

  P2026/2352/LBC Submitted 7 Sep 2026 50 yards away

  93% historically approved · decision due ~2 Nov

  Proposed internal and external alterations to 34 Farringdon Lane and 22-23 Clerk

  Awaiting decision Heritage and listed buildings

• 34 Farringdon Lane and 22–23 Clerkenwell Close, London, EC1R 3AX

  P2026/2332/NMA Submitted 3 Sep 2026 50 yards away

  90% historically approved · decision due ~2 Nov

  Non-material amendment to Planning Permission ref.P2025/1632/S73 dated 13 Nov 2025 (constituting an amendment to planning permission 2022/2739/FUL dated 05 Dec 2022) for Proposed internal and external alterations to 34 Farringdon Lane and 22-23 Clerkenwell Close including infilling of ground floor at 22-23 Clerkenwell Close to provide office space (Class E), improvements to rear courtyard, refurbishment of basement to 4th floor at 34 Farringdon Lane, installation of end of journey facilities, provision of new stair between ground and lower ground floors, provision of partial mezzanine at ground floor level, removal of existing plant at second floor level and replacement with new plant enclosure plus landscaping works for terrace, repair of external fire escape stairs on rear elevation, replacement windows, alteration to rear dormer, removal of front fire door, restoration and repair of clock and associated alterations to front elevation. (Listed building consent ref:P2025/1634/LBC also submitted). The variation seeks the following: - Levelling of the basement lightwell floor - Replacement of the approved paving slabs to the second floor terrace with a decking finish - A minor increase in the height of the lightwell rooflight - Retention of a greater extent of historic brickwork at the basement vault openings - Opaque glazing to windows - Replacement of the Level 04 rear windows - Repairs to the terrace coping stones, extension of the approved paint removal methodology - Removal of modern, aged paint from flank elevation - Internal work includes revised partitioning, reconfiguration of WCs and ancillary areas (Listed Building Consent ref.P2026/2352/LBC also submitted)

  Awaiting decision Amendments Extension Loft or dormer +1 22 docs

• 44 Clerkenwell Close, London, EC1R 0AZ

  P2025/0284/FUL Submitted 24 Jan 2025 50 yards away

  Change of use application from Class E to Class C3 Residential to create a single family dwelling.

  Withdrawn Full applications 16 docs
  Domestic

• 40 Clerkenwell Close, London, EC1R 0AZ

  P2026/2524/FUL Submitted 24 Sep 2026 50 yards away

  87% historically approved · decision due ~30 Nov

  Demolition of existing pods at roof level, installation of replacement plant and

  Awaiting decision Full applications Demolition

• P2026/1670/S73 Granted

  Lower Maisonette, 29A Kelross Road, London, N5 2QS

  Section 73 Application (Minor Material Amendment) to vary Condition 2 (Approved

  Received 7 Aug, published by the council 23 Aug 2026 Amendments
• P2026/2020/S73 Granted

  13 Pleshey Road, London, N7 0RA

  Section 73 Application (Minor Material Amendment) to vary Condition 2 (Approved

  Received 4 Aug, published by the council 8 Aug 2026 Amendments
• P2026/2553/PRA Awaiting decision

  4 - 5 Baltic Street East, London, EC1Y 0UJ

  Notification of Prior Approval for the change of use of the first, second, and third floors from office use (Use Class E) to form one self-contained two-bedroom, four-person dwelling (Use Class C3), with the existing ground-floor office (Use Class E) retained.

  Received 23 Sep, published by the council 11 Oct 2026 Amendments
• P2026/2503/NMA Awaiting decision

  145 - 157 St John Street, London, EC1V 4QJ

  Non-material amendment of planning consent reference P2018/1229/FUL dated 8th Ma

  Received 23 Sep, published by the council 29 Sep 2026 Amendments
• P2026/1380/NMA Decided

  Hylo Building, 105 Bunhill Row, London, EC1Y 8LZ

  Non-material amendment to planning consent reference P2023/2566/FUL dated 30/11/2023. The amendmens seeks to vary Condition 4 to allow for the amalgamation of Class E floorspace at ground floor and basement levels.

  Received 28 May, published by the council 25 Jul 2026 Amendments