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19 - 21 Clerkenwell Close, London, EC1R 0RR

P2019/0442/FULFull Planning ApplicationApproved
Full

Approved on 10 December 2019

Council decision: Approve with conditions and legal agreementDelegated (officer decision)

Approximate location: the centre of the postcode, not the exact property.

Proposal

Provision of additional office space (use class B1) through the erection of a replacement mansard roof to Nos. 20 and 21, the rear extension of Nos. 19, 20 and 21 with a part one, part two storey rear extension, reinstatement of 'butterfly' roof at 4th floor level to No.19 with a modern extension to the rear, the provision of 17 no. photovoltaic panels and a biodiverse roof at first floor roof level at the rear, historic reinstatements including replacement windows to No. 19, and Nos. 20 & 21 with altered fenestrations to the 3rd floor dormers and second floor windows to Nos.20 and 21, exvacation works for extensions at basement level (Alterations to planning permission ref. P2017/2089/FUL).

Received
7 February 2019
Decision level
Delegated (officer decision)
Ward
Clerkenwell
  1. Received7 Feb
  2. Validated7 Feb
  3. Consult.31 Mar
  4. Target4 Apr
  5. Decided10 Dec

Decided in 306 days (council typically 56)

About this application

This is a full planning application for a two storey rear extension at 19 - 21 Clerkenwell Close, London, EC1R 0RR. Islington has handled 1,802 applications of this type. This one was decided in 306 days, 36 weeks longer than Islington's typical decision time. The site is in a conservation area, with 13 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 143 applications across Clerkenwell. We hold 716 applications in total for the EC1R postcode area.

90% of full applications at London Borough of Islington were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Postcode
EC1R 0RR
Application type
Full Planning Application
Development type
Not Required
Scale / size
Small

Planning application dates

Date validated
7 February 2019
Consultation expiry
31 March 2019
Consultation end
31 March 2019
Last date for comments
31 March 2019
Target decision date
4 April 2019
Application expires
31 March 2019
Permission expires
10 December 2022

Planning decision

Statutory period
56 days

Publicity

First advertised
7 March 2019

Additional information

Planning Portal ID
7567953
UPRN
5300020884
Documents
35

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations at the address point. Ones next to the site may also apply.

  • Conservation area: Clerkenwell Green
  • Heritage at Risk Register: Clerkenwell
  • Flood zone 1: Low probability (rivers and sea)

Not published by this council, so not checked: Article 4 directions and tree preservation orders. Ask the council if these matter.

Also checked, none recorded (20)

flood storage areas, listed buildings, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Source: Islington

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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