Postcode record · Islington
N1 1BJ.
N1 1BJ has 46 known premises and 66 planning records — 57 approved of 64 decided (89.1%). 21 EPC records.
Postcode N1 1BJ · boundary not held, centred on the postcodeApprovedRefusedOther65 exact65 on the map — every match
At a glance · this postcodeIslington profile →
46
Premises
known addresses (UPRNs)
66
Applications
64 decided
89.1%
Approval rate
57 approved · 7 refused
21
EPC records
ratings C 6 · D 13 · E 2
65
Mapped applications
inside the postcode shape
Postcode unit boundary from Ordnance Survey; premises and applications inside it. Aggregates describe the area, not any single premises.
Property
What is it?
N1 1BJ has 46 known premises and 66 planning records — 57 approved of 64 decided (89.1%). 21 EPC records.
Premises (18 of 46 shown)
Name
Details
UPRN 5300090292
UPRN 5300090293
UPRN 5300090294
UPRN 5300090295
UPRN 5300090296
UPRN 5300090297
UPRN 5300090298
UPRN 5300090299
UPRN 5300090300
UPRN 5300090301
UPRN 5300090292
UPRN 5300090293
UPRN 5300090294
Show all 10 rows
UPRN 5300090295
UPRN 5300090296
UPRN 5300090297
UPRN 5300090298
UPRN 5300090299
UPRN 5300090300
UPRN 5300090301
Planning
What happened?
66 planning applications across the postcode; 57 approved of 64 decided (89.1%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Construction of a part width extension at rear lower ground floor level, creation of an external staircase leading to the rear lightwell, and the associated enlargement of the rear ground floor landing and rear ground floor staircase leading to garden with related internal works and reinstatement of historic features.
19 Thornhill Crescent, London, N1 1BJ · premises record
Full Planning (Householder)
Approved
2025-09-10
Listed Building Consent in connection with the construction of a part width extension at rear lower ground floor level, creation of an external staircase leading to the rear lightwell, and the associated enlargement of the rear ground floor landing and rear ground floor staircase leading to garden with related internal works and reinstatement of historic features.
19 Thornhill Crescent, London, N1 1BJ · premises record
Listed Building
Approved
2025-09-10
Ground works and associated root severance to install root barrier (16m in length/ 4m deep)
24 Thornhill Crescent, London, N1 1BJ · premises record
Tree Works Notification in Conservation Area
Approved
2025-09-04
Construction of rear conservatory at basement level, lowering part of the garden, changes to roof over kitchen and internal changes including creation of utility room and shower room at lower ground floor and change of bathroom to store at ground level and associated internal alterations. [Listed Building consent reference: P2025/0630/LBC also submitted].
19 Thornhill Crescent, London, N1 1BJ · premises record
Full Planning (Householder)
Refused
2025-03-04
Construction of rear conservatory at basement level, lowering part of the garden and internal alterations at Ground and Basement level to non principal rooms [Full plan application reference: P2025/0629/FUL also submitted].
19 Thornhill Crescent, London, N1 1BJ · premises record
Listed Building
Refused
2025-03-04
Part of Islington Council's Capital works program, the replacement of: Internal flat entrance doors with fire door sets and architraves which are non-original with FD30S. Installation of new fire alarm systems. Emergency lighting within common areas only. Electrical cupboard replacement, like-for-like. Upgrade of consumer unit.
29, Thornhill Crescent, London, N1 1BJ · premises record
Listed Building
Approved
2024-07-12
Erection of an extension at rear lower ground floor level
19 Thornhill Crescent, London, N1 1BJ · premises record
Full Planning (Householder)
Refused
2024-03-05
Listed Building Consent in connection with the erection of an extension at rear lower ground floor level
19 Thornhill Crescent, London, N1 1BJ · premises record
Listed Building
Refused
2024-03-05
Internal alterations and updating of Lower Ground Floor of Listed grade II mid terrace house.
32 Thornhill Crescent, London, N1 1BJ · premises record
Listed Building
Approved
2023-05-15
Internal work including damp treatment and changes to the layout. Reinstating staircase between upper and lower ground floors as permitted in 2006 under consents P052853 & P052862.
32 Thornhill Crescent, London, N1 1BJ · premises record
Listed Building
FINAL DECISION
2023-01-19
Construction of a part width extension at rear lower ground floor level, creation of an external staircase leading to the rear lightwell, and the associated enlargement of the rear ground floor landing and rear ground floor staircase leading to garden with related internal works and reinstatement of historic features.
19 Thornhill Crescent, London, N1 1BJ · premises record
Approved
2025-09-10
More
Full Planning (Householder)
Listed Building Consent in connection with the construction of a part width extension at rear lower ground floor level, creation of an external staircase leading to the rear lightwell, and the associated enlargement of the rear ground floor landing and rear ground floor staircase leading to garden with related internal works and reinstatement of historic features.
19 Thornhill Crescent, London, N1 1BJ · premises record
Approved
2025-09-10
More
Listed Building
Ground works and associated root severance to install root barrier (16m in length/ 4m deep)
24 Thornhill Crescent, London, N1 1BJ · premises record
Approved
2025-09-04
More
Tree Works Notification in Conservation Area
Show all 10 rows
Construction of rear conservatory at basement level, lowering part of the garden, changes to roof over kitchen and internal changes including creation of utility room and shower room at lower ground floor and change of bathroom to store at ground level and associated internal alterations. [Listed Building consent reference: P2025/0630/LBC also submitted].
19 Thornhill Crescent, London, N1 1BJ · premises record
Refused
2025-03-04
More
Full Planning (Householder)
Construction of rear conservatory at basement level, lowering part of the garden and internal alterations at Ground and Basement level to non principal rooms [Full plan application reference: P2025/0629/FUL also submitted].
19 Thornhill Crescent, London, N1 1BJ · premises record
Refused
2025-03-04
More
Listed Building
Part of Islington Council's Capital works program, the replacement of: Internal flat entrance doors with fire door sets and architraves which are non-original with FD30S. Installation of new fire alarm systems. Emergency lighting within common areas only. Electrical cupboard replacement, like-for-like. Upgrade of consumer unit.
29, Thornhill Crescent, London, N1 1BJ · premises record
Approved
2024-07-12
More
Listed Building
Erection of an extension at rear lower ground floor level
19 Thornhill Crescent, London, N1 1BJ · premises record
Refused
2024-03-05
More
Full Planning (Householder)
Listed Building Consent in connection with the erection of an extension at rear lower ground floor level
19 Thornhill Crescent, London, N1 1BJ · premises record
Refused
2024-03-05
More
Listed Building
Internal alterations and updating of Lower Ground Floor of Listed grade II mid terrace house.
32 Thornhill Crescent, London, N1 1BJ · premises record
Approved
2023-05-15
More
Listed Building
Internal work including damp treatment and changes to the layout. Reinstating staircase between upper and lower ground floors as permitted in 2006 under consents P052853 & P052862.
32 Thornhill Crescent, London, N1 1BJ · premises record
FINAL DECISION
2023-01-19
More
Listed Building
Building control
Building-control records are not yet collected for Islington — the register is being gathered borough by borough (held so far: Lambeth, Brent, Ealing, Westminster, City and others).
Place
What affects it?
Every mapped designation touching a premises in this postcode, with how many of its 46 premises each one covers.
Designation
Coverage
Conservation Area
Named designation not supplied · reference COA00000581 · covers 46 of 46 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Conservation Area
Named designation not supplied · reference COA00000581 · covers 46 of 46 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Nearby postcodes and streets
Walk to the next area — linked where the Atlas has a record for it (pilot borough only for now).
People
Who is involved?
Named on the latest 30 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 3 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 3 applications
Applicant on 2 applications
Applicant on 2 applications
Show all 10 rows
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Development
What could it become?
Planning precedent66 applications and 65 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy21 EPC records; ratings C: 6, D: 13, E: 2.
What is not assertedNo capacity, value or ownership claim is made at area level; those belong to individual premises records and their evidence.
Intent signals
The Developer PlanOwnership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.
Thinking about a project here?
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.