41 Northdown Street, London, N1 9BL Data via plota.co.uk

P2026/2045/LBC - Listed Building VALIDATED
Extensions & alterationsListed buildings

Proposal

Replacement of existing single-glazed timber windows with double-glazed timber units, together with the replacement of the rainwater goods system, fascias and soffits, and associated brickwork and render repairs. [Full planning application P2026/2044/FUL also submitted]. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
3 Aug 2026
✓
Consultation
29 Oct 2026
Decision
Target date was 15 Oct 2026

Under consideration

No decision has been issued yet. Plota predicted a decision soon after comments close on 21 Nov 2026; it is now day 87.

Comments are open until 21 Nov 2026

Comment on this application ↗

Documents

View the documents on the council's website ↗

Associated applications 2

Site constraints 17

Article 4 directionCritical Drainage Group3_006Kenwood viewing gazebo to St Paul's CathedralLocal Plan Strategic and Development Management Policies - Policy B1 DeliveringIslington LU Zones of InterestCrossrail 2Barnsbury and Laycock Liveable NeighbourhoodSite within 100m of a SRN RoadKeystone CrescentWithin 50m ofII
Grade II listed: 27-53, Northdown Street
List entry 1195696 · 15 m away · 9 more listed buildings within 150 m (9 Grade II)
Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show the other 9 with distances
Historic England ↗
Keystone Crescent conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
Protected view corridor: 3A.1 Kenwood viewing gazebo to St Paul's Cathedral
Inside the landmark viewing corridor of a protected vista. A building that rises above the corridor's threshold height should be refused. How high that is depends on where along the view the site is.
The London Plan (policy HC4) designates strategic views, and the Mayor's London View Management Framework (March 2012) gives 13 of them a protected vista toward St Paul's Cathedral, the Palace of Westminster or the Tower of London. A vista has a threshold height that rises or falls with the line of sight. In the landmark viewing corridor, a building above it would harm the view and should be refused. In the wider setting consultation area around the corridor, a building above it is referred for consultation and its effect on the view is judged. The threshold changes along each view and is set out in the framework. A revised framework is out for consultation until 4 December 2026 and is not yet in force.
London View Management Framework ↗
Air quality management area: Islington AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
Article 4 directionCouncil record
Some permitted development rights are withdrawn. The direction is on the council's register but not published as open data.
Council site ↗
Critical Drainage Group3_006Council record
Recorded by the council for this site.
Council site ↗
Kenwood viewing gazebo to St Paul's CathedralCouncil record
Recorded by the council for this site.
Council site ↗
Local Plan Strategic and Development Management Policies - Policy B1 DeliveringCouncil record
Recorded by the council for this site.
Council site ↗
Islington LU Zones of InterestCouncil record
Recorded by the council for this site.
Council site ↗
Crossrail 2Council record
Recorded by the council for this site.
Council site ↗
Barnsbury and Laycock Liveable NeighbourhoodCouncil record
Recorded by the council for this site.
Council site ↗
Site within 100m of a SRN RoadCouncil record
Recorded by the council for this site.
Council site ↗
Keystone CrescentCouncil record
Recorded by the council for this site.
Council site ↗
Within 50m ofCouncil record
Recorded by the council for this site.
Council site ↗
IICouncil record
Recorded by the council for this site.
Council site ↗
Also on the record
Inside the Islington built-up area; Public transport access: PTAL 6b (excellent), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 21 October 2026. Historic England, the Environment Agency, Natural England, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

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Other new applications on this street

22 Jun 2026Approved

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Important details

Council
Islington
Application type
Listed Building
Postcode
N1 9BL
Received
3 Aug 2026
Ward
Caledonian
Case officer
Show
Target decision
15 Oct 2026
Applicant
Show
Agent
Glenn Williams
Freehold owner
Show

Decision outlook

Day 87, past the statutory target. 84% of extensions in Islington are decided within thirteen weeks, which runs to 2 Nov 2026; extensions of time are common, and the council need not decide on the day. Last seen undecided on 28 Oct 2026.

Day 8724 days to the predicted decision (day 111)
60%decided within 8 weeks
94%approved
688decided in the last year

Plota live figures for extensions decided by Islington in the last twelve months, from validation. Islington decision record →

Consultation & key dates

Alt. reference
PP-15092113_C
Comments by
21 Nov 2026
Site or press notice
29 Oct 2026
Statutory expiry
13 Nov 2026

Historical activity at this location

25 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025 Approved
Flat 1, 25 Northdown Street, London, N1 9BL
Erection of a side/rear extension and creation of a new access, a bay window, a new rear…
P2025/2597/FUL
2025 Approved
29 Northdown Street, London
Replacement of internal flat entrance doors, architraves and fanlights, installation of n…
P2025/1727/LBC
2025 Approved
73 Collier Street, London N1 9BE
Removal and installation of roof top plant with accoustic enclosure.
P2025/0487/FUL
2024 Refused
4 Keystone Crescent, London, N1 9DS
Erection of a single-storey rear lower ground floor extension; Erection of new rear dorme…
P2024/3482/LBC
2024 Refused
3 Keystone Crescent, London, N1 9DS
Erection of a single-storey rear lower ground floor extension; erection of a rear dormer…
P2024/3478/LBC
2024 Refused
3 Keystone Crescent, London, N1 9DS
Erection of a single-storey rear lower ground floor extension; erection of a rear dormer…
P2024/3477/FUL
2024 Refused
4 Keystone Crescent, London, N1 9DS
Erection of a single-storey rear lower ground floor extension; Erection of new rear dorme…
P2024/3480/FUL
2025 Approved
73 Collier Street, London N1 9BE
External alterations including relocation of entrance, replacement windows, external land…
P2025/0344/FUL
2025 Approved
73 Collier Street, London N1 9BE
Advertisement Consent for display of internally illuminated fascia sign.
P2025/0345/ADV
2025 Approved
Flat C, 55 - 57 Northdown Street, London, N1 9BL
Installation of 2 replacement rooflights in the front roof.
P2025/0258/FUL
2024 Approved
3 Keystone Crescent, London, N1 9DS
Erection of a single-storey rear lower ground floor extension; reinstatement of the front…
P2024/3475/FUL
2024 Approved
3 Keystone Crescent, London, N1 9DS
Erection of a single-storey rear lower ground floor extension; reinstatement of the front…
P2024/3476/LBC
2024 Approved
4 Keystone Crescent, London, N1 9DS
Erection of a single-storey rear lower ground floor extension; Alterations to the existin…
P2024/3479/FUL
2024 Approved
4 Keystone Crescent, London, N1 9DS
Erection of a single-storey rear lower ground floor extension; Alterations to the existin…
P2024/3481/LBC
2024 Approved
Institute of Physics, 2-8 Balfe Street & 35-45 Caledonian Road, London, N1 9EG
Installation of 2 no. Air Source Heat Pumps (ASHP) at roof level
P2024/3581/FUL
2024 Approved
Ground Floor Shop, 48 Caledonian Road, London, N1 9DP
Installation of 1 externally illuminated fascia sign and 1 internally illuminated project…
P2024/2137/ADV
2024 Approved
Flat 1, 25 Northdown Street, London, N1 9BL
The addition of metal railings and gate at the front of the property.
P2024/1302/FUL
2024 Refused
Flat C, 55 - 57 Northdown Street, London, N1 9BL
Installation of two new front roof dormers and alteration to existing rooflights.
P2024/1438/FUL
2024 Approved
6 Keystone Crescent, London, N1 9DS
Replacement of two existing internal doors with fire doors.
P2024/1231/LBC
2024
52 Caledonian Road, London, N1 9DP
Display of 1 x internally illumninated fascia level sign and 1 x internally illuminated p…
P2024/1731/ADV
2016 Approved
37 Northdown Street Islington LONDON N1 9BL
Retrospective application for the repair and replacement of render to rear wall at ground…
P2016/4912/FUL
2016 Approved
47 Caledonian Road Islington LONDON N1 9BU
Retention of existing extract fan and flue on rear elevation.
P2016/2742/FUL
2016 Approved
Lower Maisonette 67 Caledonian Road Islington LONDON N1 9BT
Alteration to front lighwell steps and railings plus partial infilling of basement, new w…
P2016/2454/FUL
2016 Approved
9 Keystone Crescent London N1 9DS
Erection of a single storey rear extension (Full Planning Application P2016/0283/FUL also…
P2016/0356/LBC
2016 Approved
9 Keystone Crescent London N1 9DS
Erection of a single storey rear extension (Listed Building Consent P2016/0356 also submi…
P2016/0283/FUL
Islington
Planning Authority Score
2.9/10
Poor
#237 of 296 councils
Relevant to this application:
Other decisions

Islington is slower than most councils at deciding householder applications, ranking #260 out of 296. 53% of applications have the time limit extended, above the 41% national average. Householder applications are slightly more likely to be approved here (93%) than the national average (90%).

Slower than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Islington decision statistics
Based on MHCLG data, the year to March 2026
89%
Overall approval rate
Above avg (87%) #132 of 296
93%
Householder approved
Above avg (90%) #130 of 296
43%
Decided in 8 weeks
Below avg (63%) #260 of 296
53%
Extended time limit
Above avg (41%) #241 of 296
89%
Minor dwellings approved
499 decided (1-9 homes)
100%
Major dwellings approved
1 decided (10+ homes)
89%
Change of use approved
19 decided
1,488
Total decisions
167 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

Freehold owner: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.