Planning application
HGY/2025/3338
15a, Cholmeley Park, Hornsey, London, N6 5ET
Proposal
Variation of condition 2 (approved plans) of planning permission HGY/2023/2705 for Demolition of existing rear extension, erection of single-storey rear extension, enlargement of existing side extension, replacement of rear dormer roof extension to main roof, replacement of windows in front elevation to match existing in appearance, replacement of front door, changes to fenestration in side and rear elevations. Proposed changes to the fenestration on the side/rear elevations, and alterations to design and height of the side extension. Alterations to rear elevation treatment of rear dormer, increase in height of rear dormer by 0.2 metres.
As published by the council, reference HGY/2025/3338
Timeline
Dates from the published record
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12 Dec 2025
Received by Haringey
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23 Jan 2026
Decision issued: Approve with Conditions
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24 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
About amendments applications
How this application type works
An amendment application changes a permission that already exists. Non-material amendments cover small adjustments with no wider effect, while minor material amendments, usually made by varying a condition, allow modest design changes without a fresh application. Anything beyond that needs a new permission, so the scope here is deliberately narrow.
Nearby applications
Within 500 metres
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HGY/2026/0148 Granted
Annexe 15a, Cholmeley Park, Hornsey, London, N6 5ET
T1, T1 T3 Leyland cypress - remove and stump grind. (Trees form part of an old hedge) client plans ro remove overgrown trees and replant suitable hedge
-
HGY/2025/3442 Granted
Annexe 15a, Cholmeley Park, Hornsey, London, N6 5ET
T1 Monterrey Cypress - reduce from 10m to 7m remove dead
-
HGY/2026/0469 Granted
15A Cholmeley Park, Hornsey, London, N6 5ET
Certificate of lawfulness for proposed use or development, to carry out internal works to the property to remove unauthorised annexe flat, to revert the use solely to as a one single family dwellinghouse (C3).
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HGY/2026/1940 Awaiting decision
24 Cholmeley Park, Hornsey, London, N6 5EU
The application seeks planning permission for alterations to the front and rear elevations. These include the replacement of the internal glazed frame of one existing front window while retaining and restoring its external historic frame, the replacement of six existing front windows, and the replacement of four existing rear windows, together with the installation of an air conditioning unit positioned on the roof of the ground floor rear extension.
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HGY/2026/0650 Withdrawn
24 Cholmeley Park, Hornsey, London, N6 5EU
Approval of details pursuant by condition 3 (Window details) attached to ref: HGY/2024/3143
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HGY/2026/1886 Awaiting decision
24 Cholmeley Park, Hornsey, London, N6 5EU
Non-Material Amendment to permission ref: HGY/2024/3143 to changed description to '‘Erection of a rear ground floor and first floor extension following the demolition of the existing back additions and change two front windows (amended description)"
Other amendments applications
In Haringey
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HGY/2026/1633 Granted
St Matthews Court 7b, Coppetts Road, Hornsey, London, N10 1NW
Non-Material Amendment to planning permission (ref: APP/Y5420/W/22/3308350) dated 03/05/2023 for the construction of a new residential building (use class C3), together with landscaping, cycle and car parking, and associated works; namely to remove of part of enclosing perimeter walls at lower ground floor level, introduction of a predominantly open-sided under croft, with more than 50% of the perimeter open, provision of partially uncovered parking areas & retention of structural support through columns/pilotis rather than enclosed walls.
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HGY/2026/1912 Awaiting decision
12 Canning Crescent, Wood Green, London, N22 5SR
Variation of condition 2 (approved plans) of planning permission HGY/2024/3115 to increase of floor thickness and height necessary to comply with building regulations and addition of lift overrun.
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HGY/2026/2076 Awaiting decision
10 Ellington Road, Hornsey, London, N10 3DG
Demolition of the existing buildings and erection of 5 replacement residential units, arranged as two terraced houses and three flats.
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HGY/2026/2077 Awaiting decision
10 Ellington Road, Hornsey, London, N10 3DG
Non-Material Amendment of HGY/2023/1406 to rename the proposal 'Demolition of the existing buildings and erection of replacement residential units'.
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HGY/2026/1449 Granted
8 Eastern Road, Hornsey, London, N2 9LD
Non-Material Amendment to the application HGY/2025/0897 as approved on 21/08/2025 for: Demolition of side garage and erection of new single storey side extension together with new insulated render finish to side and rear elevations, new and adjusted window openings and internal remodelling. Solar Panel are to be added the rear elevation roof slope. The proposed amendments sought are: - alterations to window positions - amendments to the style of the original windows - installation of PV panels on rear roof slope