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49, Thornhill Road, N1 1JS

P2025/1011/LBCHouseholder planning & listed building consentApproved
Householder

Approved on 20 January 2026

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

External works including remedial brickwork repairs and replacement of gutters, removal of the modern rear conservatory and installation of a glazed panel French door, replacement of two modern casement windows on the first-floor rear elevation with traditional timber casement windows. Replacement of ground-floor garden door with a glazed panel door in painted timber. Internal alterations including alterations to layouts on the lower ground and first floors.

Submitted
4 April 2025
  1. Received4 Apr
  2. Validated
  3. Consult.
  4. Target
  5. Decided20 Jan

Decided in 291 days (council typically 56)

About this application

This is a planning application for a conservatory at 49, Thornhill Road, N1 1JS. Islington has handled 185 applications of this type. This one was decided in 291 days, 34 weeks longer than Islington's typical decision time. The site is in a conservation area, with 9 listed buildings nearby. There have been 2 other applications at this address. We hold 4,098 applications in total for the N1 postcode area.

85% of householder planning & listed building consent 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
N1 1JS
Application type
Householder planning & listed building consent

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Barnsbury
  • Listed building: Grade II: 49, Thornhill RoadOn this site · +1 more
  • 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, 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. 2025
    4 Apr

    External works including remedial brickwork repairs and replacement of gutters, removal of the modern rear…

    ApprovedListed building consentFiled alongsideP2025/1010/FUL
  2. 2025
    4 Apr

    External works including remedial brickwork repairs and replacement of gutters, removal of the modern rear…

    This applicationApprovedListed building consentP2025/1011/LBC

Source: Islington

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

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