Planning application
5 Firs Avenue, Hornsey, London, N10 3LY
Works: Extension Loft or dormer Small domestic
Read from the description, not a valuation. How we read the register
Relates to HGY/2026/0923
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Approval of details pursuant to condition 4 (Chartered Engineer) attached to planning permission ref. HGY/2026/0923 for Erection of lower ground floor single storey rear extension; basement extension; rear dormer extension; associated internal and external changes granted on 22/06/2026.
As published by the council, reference HGY/2026/1900
Application record
- Reference
- HGY/2026/1900
- Type
- Approval of details reserved by a condition
- Status
- Decision Made
- Decision
- Approve
- Received
- 7 Jul 2026
- Validated
- 7 Jul 2026
- Decided
- 13 Jul 2026
- Ward
- Muswell Hill
- Decision by
- Delegated Decision
- Postcode
- N10 3LY
Site history
Applications at this address on the Haringey register
This site has had 3 applications since 2026: 2 approved, 1 refused.
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HGY/2026/1839 Refused
5 Firs Avenue, Hornsey, London, N10 3LY
Minor Material Amendment application under Section 73 of the Town and Country Planning Act for variation to condition 2 attached to planning permission HGY/2026/0923 to enable the construction of a front lightwell and front glazing to lower ground floor.
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HGY/2026/0923 Granted
5 Firs Avenue, Hornsey, London, N10 3LY
Erection of lower ground floor single storey rear extension; basement extension; rear dormer extension; associated internal and external changes.
Timeline
Dates from the published record
-
7 Jul 2026
Received by Haringey
-
13 Jul 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/2026/0923 Granted
5 Firs Avenue, Hornsey, London, N10 3LY
Erection of lower ground floor single storey rear extension; basement extension; rear dormer extension; associated internal and external changes.
Documents
Plans, drawings, consultee responses and the officer's report
5 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 13 July 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 condition discharge and variation applications
This application deals with conditions on an existing permission, supplying the details a condition requires or asking to vary or remove one, without reopening the permission itself. More in our guide to planning application types.
Nearby applications
Within 500 metres
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17 Firs Avenue, Hornsey, London, N10 3LY
SG1 Privet, Holly, Laurel, Dog rose, Choisya (height: 1.9m, distance to damage: 3m) Remove close to ground level and treat stumps with herbicide to inhibit regrowth.
Granted Trees 11 docs -
6 Firs Avenue, Hornsey, London, N10 3LY
T1 - eucalyptus tree (9m) - reduce height by approximately 2m and remove two lowest branches. T2 - four pleached hornbeam trees (5m) - reduce branches overhanging garden by approximately 1m. Front garden- T3 - birch tree (12m) - reduce height by approximately 3m and reduce branches away from house by approximately 2m.
Granted Trees 6 docs -
27 Firs Avenue, Hornsey, London, N10 3LY
Proposal: We are proposing to have the large lime tree at the bottom of our garden pruned professionally, as part of the cycle of regular pruning. The proposed work is a 30% crown reduction and thinning back to previous reduction points. I would estimate that the tree is about 15 metres high, so we are requesting a reduction of some 4-5 metres. The tree was last pruned in 2021 under your reference CON/2021/0518: it is in a Conservation Area, but not subject to a Tree Preservation Order.
Granted Trees 4 docs -
5 Firs Avenue, Hornsey, London, N10 3LY
Minor Material Amendment application under Section 73 of the Town and Country Planning Act for variation to condition 2 attached to planning permission HGY/2026/0923 to enable the construction of a front lightwell and front glazing to lower ground floor.
Refused Amendments Windows or glazing 13 docs -
11 Firs Avenue, Hornsey, London, N10 3LY
99% historically approved · decision due ~30 Oct
T1 - sweet gum tree (6m) - take down to ground level. T2 - acer tree (4m) - reduce lowest limb overhanging patio by approximately 2m to suitable pruning points close to edge of patio. T3 - thorny olive tree (4m) - take down to ground level. T4 - laurel tree (3m) - reduce height to approximately fence height (1.8m) and reduce branches back from bed by approximately 1m. T5 - climbing hydrangea (3m) - reduce height to approximately fence height (1.8m). T6 - ivy on right fence (3m) - remove as much as possible around hydrangea. T7 - ivy on rear fence (3m) - remove as much as possible from top of fence to allow plants beneath space. T8 - winter jasmine & euonymus bushes (2m) - cut back from path. Front garden- T9 - variegated laurel tree (3m) - reduce height to approximately 2.2m and reduce back from driveway. T10 - variegated euonymus hedge (1m) - cut back to wall from pavement and remove branch from rear plant growing wall, leaving acer above.
Awaiting decision Trees 11 docsSmall domestic -
5 Firs Avenue, Hornsey, London, N10 3LY
Erection of lower ground floor single storey rear extension; basement extension; rear dormer extension; associated internal and external changes.
Granted Householder Extension Loft or dormer 11 docsSmall domestic
Other condition discharge and variation applications
In Haringey
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HGY/2025/2722 Withdrawn
47 Mount View Road, Hornsey, London, N4 4SS
Approval of details pursuant to Condition 4 (Landscaping) attached to permission: HGY/2024/2771.
-
HGY/2026/2215 Awaiting decision
1, 15, 16, 18, 23, 25, 26, 31, 32, 34 Teynton Terrace, Tottenham, London, N17 7PZ
Approval of details reserved by a condition 4 (window, door, and roof detail) to approved application HGY/2026/1938 (External repairs inclusive of roofing repairs and replacement of windows and doors)
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HGY/2026/2496 Awaiting decision
Mayfield House, St Anns General Hospital, St Anns Road, Tottenham, London, N15 3TH
Approval of details reserved condition 34 (non-residential hours of operation) attached to Planning Permission Ref: HGY/2022/1833 dated 10 July 2023.
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HGY/2026/2043 Granted
Tottenham Substation, Watermead Way, London, N17 0SG
Approval of Schedule 2 Requirements 13 (CEMP) relating to Stage 4a (as approved under HGY/2026/0364), of The National Grid (North London Reinforcement Project) Order 2014 attached to development consent order HGY/2014/3601.
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HGY/2026/1970 Granted
Parma House, Clarendon Road Off Coburg Road, Wood Green, London, N22 6UL
Approval of details pursuant to Condition 3 (balcony, window, and external door details) of planning permission ref. HGY/2025/3439, granted on 4 February 2026, for alterations to the building façades to incorporate balconies on the exterior of the building.