1,3, 5 & 7 Lamb's Mews, London, N1 8UD Data via plota.co.uk

P2025/3619/FUL - Full Planning Application Approved
Extensions & alterations

Proposal

Remodelling of the existing roofs of Nos 1, 3, 5, and 7 Lambs Mews to form a mansard roof extension including the construction of front and rear dormer windows and associated works. (REASON FOR RECONSULTATION: The description of develoment and design have been updated). Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
23 Feb 2026
✓
Validated
27 Feb 2026
✓
Consultation
28 May 2026
✓
Approved
2 Oct 2026

Approved on 2 Oct 2026 · Delegated · Last checked 3 Oct 2026

Documents

View the documents on the council's website ↗

Site constraints 15

Article 4 directionLocal Plan Strategic and Development Management Policies - Policy B1 DeliveringAPA Islington Village and Manor HouseSite within 100m of a SRN RoadWithin 50m ofDuncan Terrace/Colebrooke Row
Grade II listed: Number 64 and Attached Railings
List entry 1208830 · 30 m away · 27 more listed buildings within 150 m (27 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 27 with distances
Historic England ↗
Duncan Terrace/Colebrooke Row 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 ↗
Archaeological priority area
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
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Some permitted development rights are withdrawn.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 ↗
Local Plan Strategic and Development Management Policies - Policy B1 DeliveringCouncil record
Recorded by the council for this site.
Council site ↗
APA Islington Village and Manor HouseCouncil 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 ↗
Within 50m ofCouncil record
Recorded by the council for this site.
Council site ↗
Duncan Terrace/Colebrooke RowCouncil record
Recorded by the council for this site.
Council site ↗
Also on the record
Heritage at risk 10 m away: Angel; Inside the Islington built-up area; Public transport access: PTAL 6a (excellent), TfL 2023, for the 100 m square; Town centre 10 m away: Angel; Designated open space 38 m away.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 3 November 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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Important details

Council
Islington
Application type
Full Planning Application
Postcode
N1 8UD
Received
23 Feb 2026
Validated
27 Feb 2026
Ward
St Peter's & Canalside
Case officer
Show
Target decision
19 Apr 2026
Decision
Approve with conditions
Decision date
2 Oct 2026
Decision level
Delegated
Applicant
Show
Agent
Zenab Hearn

How this decision compares

Decided in 217 days from validation, 165 days slower than Islington's median of 52 for extensions. Approved, as 94% of extensions here are.

60%decided within 8 weeks
94%approved
814decided 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-14548968
Comments by
20 Jun 2026
Site or press notice
28 May 2026
Statutory expiry
13 Jun 2026

Historical activity at this location

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

Within ~100m

Nearby activity

2025 Withdrawn
45 St Peter's Street, London, N1 8JP
Proposed single storey rear extension, internal refurbishment and all associated works at…
P2025/3163/FUL
2025 Withdrawn
45 St Peter's Street, London
Proposed single storey rear extension, internal refurbishment and all associated works at…
P2025/3164/LBC
2025 Approved
55, Colebrooke Row, London, N1 8AF
Remove existing glazing and replace with vacuum glazing
P2025/2548/LBC
2025
31 Devonia Road, London, N1 8JQ
Erection of a single storey rear wraparound extension and formation of a rear roof balcon…
P2025/3570/FUL
2025
55, Colebrooke Row, London, N1 8AF
Installation of solar PV panels on the rear roof slope of the house and installation of t…
P2025/3561/FUL
2025
55, Colebrooke Row, London, N1 8AF
Installation of photo voltaic solar panels on the rear roof slope of the house and instal…
P2025/3562/LBC
2025 Approved
51 Devonia Road, London, N1 8JQ
Replace existing windows with new double glazed windows to front and rear elevations.
P2025/3078/FUL
2025 Approved
7, Chantry Street, London, N1 8NR
T1 - birch tree (6m) - reduce height by approximately 1m. T2 - birch tree (7m) - reduce h…
P2025/3165/TRE
2025 Approved
31 St Peter's Street, London
New internal door opening between Kitchen and Living Room, Relocation of boiler flue on r…
P2025/2221/LBC
2025
33 St Peter's Street, London
Back garden: Laurel (T1) - cut back, retaining some greenery to allow more light into the…
P2025/2689/TRE
2025
35, St Peter's Street, London, N1 8JP
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P2025/2688/TRE
2025
Colebrooke Works, 46 Colebrooke Row, London, N1 8AF
Change of use of the existing building from a Class E use to a flexible Class E or Class…
P2025/2526/FUL
2025
54, Colebrooke Row, London, N1 8AF
T1 - lilac tree (6m) - take down to ground level.
P2025/2137/TRE
2025 Approved
Flat C, 47 Devonia Road, London, N1 8JQ
Proposed front dormer and proposed rear dormer to roof level with two rooflights and asso…
P2025/0903/FUL
2025
24 Devonia Road, London
T1 - Sycamore - Remove branches that grow towards and overhang the garden of 22 Devonia R…
P2025/1773/TRE
2025 Refused
35 St Peter's Street, London, N1 8JP
Erection of a roof extension.
P2025/0583/FUL
2025 Refused
35 St Peter's Street, London, N1 8JP
Erection of a roof extension.
P2025/0584/LBC
2025 Approved
Flat A, 30 Devonia Road, London, N1 8JH
Excavation to an existing front vault to form bathroom.
P2025/0298/FUL
2025 Refused
25 Devonia Road, London, N1 8JQ
Erection of a roof dormer to rear roof slope and rooflights to front roof slope with incr…
P2025/0236/FUL
2024 Approved
39 St Peter's Street, London, N1 8JP
Erection of glazed single storey rear extension, demolition of closet wing at first floor…
P2024/3502/FUL
2016 Approved
55 Colebrooke Row, London, N1 8AF
Remove 1 x Mimosa (T3) in rear garden.
P2016/4496/TRE
2016
5A St Peter's Street, London, N1 8JD
Pollard 1 x Sycamore in rear garden by 35%
P2016/4004/TRE
2016 Approved
Flat A 36 Grantbridge Street LONDON N1 8JN
Installation of replacement new timber double glazed windows and doors at rear ground and…
P2016/2991/FUL
2016
11 St Peter's Street, London, N1 8JD
1 x Catalpa (Indian Bean Tree) in rear garden: Reduce back property side 2.5-3m and Crown…
P2016/3392/TRE
2016 Approved
38 Grantbridge Street LONDON N1 8JN
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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