36 Thornhill Road, London, N1 1HW Data via plota.co.uk

Approved P2025/3125/FUL - Full Planning (Householder)
Council
Islington 2.9/10
Date received
6 Nov 2025
Date validated
6 Nov 2025
Decision date
11 Feb 2026
Postcode
N1 1HW
Type
Full Planning (Householder)

Description

Extension of the existing basement Data via plota.co.uk

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Last checked

How this decision compares

Decided in 97 days from validation, 41 days slower than Islington's median of 56 for householder applications. Approved, as 93% of householder applications here are.

51%decided within 8 weeks
93%approved
359decided in the last year

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

Associated applications 2

Site constraints 7

Grade II listed: 1, Thornhill Road
List entry 1195766 · 19 m away · 25 more listed buildings within 150 m (2 Grade II*, 23 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 25 with distances
Historic England ↗
Barnsbury 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: 1A.2 Alexandra Palace viewing terrace 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 ↗
Also on the record
Local nature reserve 356 m away: Barnsbury Wood; Inside the Islington built-up area; Public transport access: PTAL 3 (moderate), 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 8 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.

Sales history 2

Last sold for £1,275,000 in March 2025. Terraced house, freehold.

18 March 2025£1,275,000
4 December 1995£147,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area88 m² (947 sq ft)
Energy ratingD (57 out of 100), could reach C
PropertyEnd-terrace house, 3 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in September 2017, the latest held for this property. The building may have changed since. View the certificate

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Other new applications on this street

19 Oct 2026Pending

Basement & Ground Floor, 35 Thornhill Road, N1 1JR

Conversion of office to residential (retrospective).

P2026/2598/FUL
19 Oct 2026Pending

49, Thornhill Road, London, N1 1JS

Loft conversion with addition of two rear dormers P2026/2671/LBC also submitted

P2026/2670/FUL
7 Oct 2026Pending

29 Thornhill Road, London, N1 1JR

Erection of replacement rear boundary wall and installation of timber access doo...

P2026/2629/FUL

Nearby new applications

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Removal / variation of conditions 02 (drawings) and 03 (materials) of planning p...

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21 Oct 2026Pending

321, Liverpool Road, London, N1 1NQ

Approval of details pursuant to Condition no. 7 Internal Partition on First Floo...

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19 Oct 2026Pending

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Application for approval of details pursuant to the partial discharge of Conditi...

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19 Oct 2026Pending

Basement & Ground Floor, 35 Thornhill Road, N1 1JR

Conversion of office to residential (retrospective).

P2026/2598/FUL
19 Oct 2026Pending

49, Thornhill Road, London, N1 1JS

Loft conversion with addition of two rear dormers P2026/2671/LBC also submitted

P2026/2670/FUL

Historical activity at this location

26 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2025 Approved
Extension of existing mansard roof and replacement of existing roof terrace glass balustr…
P2025/3127/FUL
Within ~100m

Nearby activity

2025 Approved
36, Lonsdale Square, London, N1 1EW
Internal works including part retrospective
P2025/2701/LBC
2025 Approved
27 Londsale Square, London, N1 1EW
Replacement of internal flat entrance doors, architraves and fanlights, installation of n…
P2025/2867/LBC
2025 Withdrawn
36, Lonsdale Square, London, N1 1EW
Renewal and upgrade of roof insulation and boiler. Installation of air conditioning to th…
P2025/2859/FUL
2025 Withdrawn
36, Lonsdale Square, London, N1 1EW
Renewal and upgrade of roof insulation and boiler. Installation of air conditioning to th…
P2025/2860/LBC
2025 Approved
36, Lonsdale Square, London, N1 1EW
REMOVAL OF THE DECORATIVE JAPANESE MAPLE (ACER PALMATUM) TREE IN THE REAR GARDEN
P2025/2903/TRE
2025
25, Lonsdale Square, London, N1 1EW
Lower ground floor damp works to perimeter. Lower ground floor internal layout, wall and…
P2025/2913/FUL
2025
25, Lonsdale Square, London, N1 1EW
Lower ground floor damp works to perimeter. Lower ground floor internal layout, wall and…
P2025/2914/LBC
2025 Approved
9 Ripplevale Grove, London, N1 1HS
Erection of a single storey outbuilding within rear garden.
P2025/0889/FUL
2025
105, Barnsbury Street, London, N1 1EP
internal alterations.
P2025/2167/LBC
2025 Approved
22 Thornhill Road, London, N1 1HW
Creation of a single storey side infill extension with roof light over the extension.
P2025/1174/FUL
2025 Approved
Thornhill Primary School, 11 Thornhill Road, London, N1 1HX
Alteration of two windows to form 2 new external doors and rehanging of existing street g…
P2025/1136/FUL
2024 Approved
9, Ripplevale Grove, London, N1 1HS
Internal reinstatement, repair and improvement works including new shower room, re-plaste…
P2024/2871/LBC
2025 Approved
11, Ripplevale Grove, London, N1 1HS
Rebuilding of chimneystack. Replacement of rooflight to GF side passage. Repositioning of…
P2025/0377/LBC
2025 Approved
Flat C, 27 Lonsdale Square, London, N1 1EW
Replace two casement windows to rear elevation at third floor level
P2025/0817/FUL
2025 Approved
27, Flat C, Lonsdale Square, London, N1 1EW
Replace two casement windows to rear elevation at third floor level, internally forming w…
P2025/0119/LBC
2025
9 Ripplevale Grove, London, N1 1HS
Erection of a single storey shed to the rear of the garden to be used as a home office an…
P2025/1097/LBC
2024 Approved
22 Thornhill Road, London N1 1HW
Erection of a roof extension and formation of a roof terrace.
P2024/2149/FUL
2024 Approved
Flat B, 22 Lonsdale Square, London, N1 1EN
The replacement of an existing timber casement window to a new timber sliding sash window…
P2024/2546/FUL
2024 Approved
Flat B, 22 Lonsdale Square, London, N1 1EN
The replacement of an existing timber casement window to a new timber sliding sash window…
P2024/2547/LBC
2025
11, Ripplevale Grove, London, N1 1HS
Rear garden: Cherry T1 (10M high, 350mm dia.) - Reduce the crown overall by up to 2 metres
P2025/0287/TRE
2016 Refused
12 Ripplevale Grove Islington LONDON N1 1HU
Erection of a single storey rear extension. Listed Building consent P2016/3727 also submi…
P2016/3666/FUL
2016
16 Ripplevale Grove, London, N1 1HU
Rear garden: 1 x Robinia - Reduce back to previous points of reduction whilst leaving fur…
P2016/4607
2016 Approved
1 Thornhill Road, London, N1 1HX
Rear garden: T1 - Robinia - Crown Reduce to previous reduction points (approx 1m) leaving…
P2016/2818/TRE
2016 Approved
Flat B & C 18 Lonsdale Square LONDON N1 1EN
Replacement of rear casement window to the second floor with a sash window. New conservat…
P2016/2114/FUL
2016 Approved
Flat B & C 18 Lonsdale Square LONDON N1 1EN
Replacement of rear casement window to the second floor with a sash window. New conservat…
P2016/1966/LBC
Islington
Planning Authority Score
2.9/10
Poor
#237 of 296 councils
Relevant to this application:
Householder 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

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

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

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.