Planning application
26 Collingwood Avenue, Hornsey, London, N10 3ED
Works: Extension Loft or dormer Windows or glazing
Relates to HGY/2025/2421
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Non-Material Amendment application following a grant of planning permission HGY/2025/2421 in relation to the alteration to the line of the wall of the front part of the extension adjacent to the boundary with No.24; removal of the external door to the front part of the extension; a change to the shape of the roof of the extension from a shallow curve to a shallow pitch shape; the addition of 1x small rooflight over the utility room; changes to the dormer fenestration to windows omitting the Juliet balcony.
As published by the council, reference HGY/2026/0587
Application record
- Reference
- HGY/2026/0587
- Type
- Non-Material Amendment
- Status
- Decision Made
- Decision
- Approve
- Received
- 2 Mar 2026
- Validated
- 2 Mar 2026
- Decided
- 30 Mar 2026
- Ward
- Fortis Green
- Decision by
- Delegated Decision
- Postcode
- N10 3ED
Site history
Applications at this address on the Haringey register
This site has had 2 applications since 2025: 2 approved, 0 refused.
-
HGY/2025/2421 Granted
26 Collingwood Avenue, Hornsey, London, N10 3ED
Enlargement and alterations to existing single storey ground floor extension to the rear and flank of the house; Enlargement and alterations to the existing rear roof dormer and rear roof; Associated internal and external alterations including the alteration of layout and number of rooflights.
Timeline
Dates from the published record
-
2 Mar 2026
Received by Haringey
-
30 Mar 2026
Decision issued: Approve
-
24 Jul 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
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HGY/2025/2421 Granted
26 Collingwood Avenue, Hornsey, London, N10 3ED
Enlargement and alterations to existing single storey ground floor extension to the rear and flank of the house; Enlargement and alterations to the existing rear roof dormer and rear roof; Associated internal and external alterations including the alteration of layout and number of rooflights.
Documents
Plans, drawings, consultee responses and the officer's report
16 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat this grant of permission means
Haringey granted permission on 30 March 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About amendment applications
An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.
Nearby applications
Within 500 metres
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26 Collingwood Avenue, Hornsey, London, N10 3ED
Enlargement and alterations to existing single storey ground floor extension to the rear and flank of the house; Enlargement and alterations to the existing rear roof dormer and rear roof; Associated internal and external alterations including the alteration of layout and number of rooflights.
Granted Householder Extension Loft or dormer 26 docsSmall domestic -
10 Collingwood Avenue, Hornsey, London, N10 3ED
99% historically approved · decision due ~2 Nov
T1- large Yew tree in the rear garden to reduce by 1m all over and crown lift 3m remove deadwood
Awaiting decision Trees 3 docs -
44 Collingwood Avenue, Hornsey, London, N10 3ED
Erection of a ground floor rear side infill
Granted Householder Extension 10 docsDomestic -
22 Collingwood Avenue, Hornsey, London, N10 3ED
T1 -Pear tree in garden of number 24 - crown reduction of approximately 3m on all aspects of tree. Removal of climbing plant and Ivy from tree, prune back branches overhanging garden of number 22 back to boundary. T2-Apple tree in garden of number 24- crown reduction of approximately 3m. T3-Neighbours Yew tree- prune back close to boundary whilst maintain green foliage. T4- Bay tree - prune back small diameter overhanging branches by up to approximately 40cm.
Granted Trees 7 docs -
38, Collingwood Avenue, London, N10 3ED
T1 Sycamore (identified with * on the plan) - located NE corner of garden at 38 Collingwood Avenue: trim back re-growths to previous cut points on the upper branches only (i.e. re-growths above the red line in the enclosed photo). Works to be carried out before the tree commences growth this spring. Reason: shading of garden at 35 Leaside Avenue in the afternoons.
Granted Trees 4 docs -
19 Leaside Avenue, Hornsey, London, N10 3BT
T3 Laburnum with Dogwood understorey of the submitted MWA Arboricultural Report Works: Remove (fell) both to near ground level and treat stumps to inhibit regrowth. Reason: Clay shrinkage subsidence damage at the subject property.
Granted Trees 3 docs
Other amendment applications
In Haringey
-
HGY/2026/2100 Granted
Unit 3a, High Cross Centre, Fountayne Road, Tottenham, London, N15 4QN
Non-material amendment to planning permission ref. HGY/2025/2192 for the re-roofing with removal of slates with composite panels, with installation of solar panels to south roof sections. Amendment to use artificial slates instead of composite panels.
-
HGY/2026/1302 Awaiting decision
328 Alexandra Park Road, Wood Green, London, N22 7BD
Minor Material Amendment application under Section 73 of the Town and Country Planning Act for variation to conditions 2 (approved plans) and condition 3 (limitation of use) attached to planning permission HGY/2024/1358 relating to a single storey outbuilding, to enable the outbuilding use as a residential annex/ ancillary accommodation.
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HGY/2026/2461 Awaiting decision
196 Page Green Terrace, Tottenham, London, N15 4NP
Variation of condition 2 (approved plans) of planning permission HGY/2026/0549 for Excavation of front and rear lightwells and installation of stairs in front garden to basement level, basement extension, single storey rear extension, first and second floor rear extension, installation of waste and bike storage in front garden, reconfiguration and enlargement of existing 3 flats. Proposed amendment to include steps down to basement, with basement entrance provided for basement/ground floor flat, with railings infront of lightwell instead of safety/security grilles.
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HGY/2026/2429 Awaiting decision
Flat 4, 1 Willoughby Road, Hornsey, London, N8 0HR
Non-Material Amendment to planning permission HGY/2015/1594 to convert existing storage room into an additional bedroom, to convert existing 2-bedroom split level flat into a 3-bedroom flat.
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HGY/2026/1890 Granted
20 Victoria Road, Hornsey, London, N4 3SQ
Non-Material Amendment to planning permission HGY/2025/2901 for the substitution of the approved concealed zinc flat roof covering with a concealed GRP (Glass Reinforced Plastic) flat roof covering to the approved single-storey rear extension.