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5 Sebastian Street, London, EC1V 0HE

P2026/0169/FULFull Planning (Householder)Approved
Householder

Approved on 17 June 2026

Council decision: Approve with conditionsDelegated (officer decision)

Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Replacement windows and doors. Replacement roof and installation of roof insulation increasing height. Installation of new windows and doors, gate, external staircase and timber screen to vault. Refurbishing rear terrace and installation of sliding doors. Alterations to rear courtyard steps and landscaping. Installation of air source heat pump.

Received
22 January 2026
Decision level
Delegated (officer decision)
Ward
Clerkenwell
  1. Received22 Jan
  2. Validated2 Feb
  3. Consult.7 Mar
  4. Target29 Mar
  5. Decided17 Jun

Decided in 135 days (council typically 56)

About this application

This is a full planning application for window replacement at 5 Sebastian Street, London, EC1V 0HE. Islington has handled 1,802 applications of this type. This one was decided in 146 days, 13 weeks longer than Islington's typical decision time. The site is in a conservation area, with 6 listed buildings nearby. There has been 1 other application at this address. In the past year there have been 143 applications across Clerkenwell. We hold 1,024 applications in total for the EC1V 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
EC1V 0HE
Application type
Full Planning (Householder)
Scale / size
Small

Planning application dates

Date validated
2 February 2026
Consultation expiry
7 March 2026
Consultation end
7 March 2026
Target decision date
29 March 2026
Application expires
6 March 2026

Planning decision

Statutory period
55 days

Publicity

First advertised
12 February 2026
Site notice start
12 February 2026

Additional information

Planning Portal ID
PP-14602387
UPRN
5300081440
Documents
26

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

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, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, 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.

Associated applications

  1. 2026
    22 Jan

    Replacement windows and doors. Replacement roof and installation of roof insulation increasing height…

    This applicationApprovedFullP2026/0169/FUL
  2. 2026
    22 Jan

    Replacement windows and doors. Replacement roof and installation of roof insulation increasing height…

    ApprovedListed building consentFiled alongsideP2026/0170/LBC

Source: Islington

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

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