Planning application
39 Thornhill Road, London, N1 1JS
Works: Extension Loft or dormer Windows or glazing Domestic
Read from the description, not a valuation. How we read the register
Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.
Proposal
Erection of roof extension with dormer windows
As published by the council, reference P2025/3541/FUL
Application record
- Reference
- P2025/3541/FUL
- Type
- Full Planning (Householder)
- Status
- 1-Incomplete Application
- Decision
- Refusal of permission
- Received
- 15 Dec 2025
- Validated
- 15 Dec 2025
- Decided
- 6 Feb 2026
- Postcode
- N1 1JS
Site history
Applications at this address on the Islington register
This site has had 5 applications since 2024: 2 approved, 1 refused.
-
P2026/0305/TRE Granted
39, Thornhill Road, London, N1 1JS
T1 - Magnolia - reduce crown by 1-1.5m (not beyond previous points of reduction
-
P2025/1656/TRE Awaiting decision
39, Thornhill Road, London, N1 1JS
Minor pruning of Magnolia tree, particularly the branches overhanging the neighbours at number 37.
-
P2025/0620/TRE Awaiting decision
39, Thornhill Road, London, N1 1JS
T1 - Prickly Cypress - Felling to ground level and treating stump. T2 - Cherry - Felling to ground level and stump grinding.
-
P2024/2774/FUL Granted
39 Thornhill Road, London, N1 1JS
Erection of single storey rear extension at lower ground floor level (replacing existing two storey rear outrigger), second floor roof terrace on top of existing side annex, alterations to the fenestration across the front and rear, front landscaping works, timber bike enclosure to front garden and associated works.
Timeline
Dates from the published record
-
15 Dec 2025
Received by Islington
-
6 Feb 2026
Decision issued: Refusal of permission
-
8 Aug 2026
Added to PlanIndex
What this refusal means
Islington refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.
About householder applications
Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
37 Thornhill Road, London, N1 1JS
92% historically approved · decision due ~9 Feb
Erection of roof extension with dormer windows, alterations to front garden incl
Awaiting decision Householder Extension Loft or dormer +1Domestic -
39, Thornhill Road, London, N1 1JS
T1 - Magnolia - reduce crown by 1-1.5m (not beyond previous points of reduction
Granted Trees -
41, Thornhill Road, London, N1 1JS
100% historically approved · decision due ~17 Apr
A cherry tree located at No. 41 Thornhill Road. The tree has a low crown which overhangs into No. 39 Thornhill Road. Requesting permission to carry our pruning of those branches which overhang No. 39.
Awaiting decision Trees 1 doc -
41, Thornhill Road, London, N1 1JS
100% historically approved · decision due ~22 Apr
T1 False acacia Fell to ground level and provide replacement planting (minimum size 14-16cm girth Extra Heavy Standard)
Awaiting decision Trees 3 docs -
41, Thornhill Road, London, N1 1JS
100% historically approved · decision due ~4 Aug
T1 - Cherry - reduce crown to points of previous reduction (approx. 2m) T2 - Himalayan Birch - Reduce low branch on S side of tree by 2-3m. Balance by reducing surrounding branches by 1-1.5m T3 Cherry - Reduce crown by 1m, crown lift by 1m
Awaiting decision Trees 6 docs -
39, Thornhill Road, London, N1 1JS
100% historically approved · decision due ~29 Apr
T1 - Prickly Cypress - Felling to ground level and treating stump. T2 - Cherry - Felling to ground level and stump grinding.
Awaiting decision Trees 5 docs
Other householder applications
In Islington
-
P2026/2323/FUL Status unknown
146 St John Street, London, EC1V 4UA
Alteration, extension and conversion of existing mixed-use buildings (office and
-
P2026/1890/FUL Granted
17 Belitha Villas, London, N1 1PE
External lighting to front elevation, bin store and garden sauna to rear garden.
-
P2026/2288/FUL Status unknown
34 Sudeley Street, London, N1 8HW
Retrospective application for reroofing the hidden front 'butterfly roof and rea
-
P2026/1899/FUL Granted
8 Sidney Grove, London, EC1V 7LP
Proposed infilling of front first floor and second floor terrace areas and inser
-
P2026/1627/FUL Granted
5 Cumberland Gardens, London, WC1X 9AF
Installation of stone paving to front steps, installation of ASHP in garden and