5 Firs Avenue Hornsey London N10 3LY Data via plota.co.uk

HGY/2026/1900 - Approval of details reserved by a condition Approved
Admin / procedural

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. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
around 7 Jul 2026
✓
Approved
13 Jul 2026

Approved on 13 Jul 2026 · Delegated Decision · Last checked 22 Aug 2026

Documents 5

Decision & officer reports 2

PDF DM Final Officer Report.pdf PDF · 13 Jul 2026 View ↗ PDF DM Decision.pdf PDF · 13 Jul 2026 View ↗

Plans & drawings 1

PDF LocationPlan.pdf PDF · 7 Jul 2026 View ↗

Other documents 2

PDF 225267 DOC LET confirmation appointment_Redacted PDF · 10 Jul 2026 View ↗ PDF ApplicationFormRedacted.pdf PDF · 7 Jul 2026 View ↗

All documents on the council site ↗

Associated applications 3

Site constraints 7

26 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.
Air quality management area: Haringey 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 ↗
5 listed buildings within 150 m of the postcode pin
Nearest: 1, Firs Avenue, Grade II, about 57 m from the postcode pin · 1 Grade II*, 4 Grade II
The site itself is not listed. 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 all 5 with distances
Historic England ↗
Local nature reserve about 316 m away: Parkland Walk
Work nearby can need a habitats assessment.
Harm to a protected site is only accepted where there is no alternative and an overriding public interest.
Also on the record
Inside the Haringey built-up area; Public transport access: PTAL 3 (moderate), TfL 2023, for the 100 m square; Town centre about 42 m away: Muswell Hill.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. 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.

Sales history 1

Last sold for £1,750,000 in January 2018. Terraced house, freehold.

26 January 2018£1,750,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area198 m² (2,131 sq ft)
Energy ratingF (27 out of 100), could reach C
PropertyMid-terrace house, 9 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in October 2017, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Other new applications on this street

4 Sept 2026Approved

11 Firs Avenue Hornsey London N10 3LY

T1 - sweet gum tree (6m) - take down to ground level. T2 - acer tree (4m) - r...

HGY/2026/2475

Nearby new applications

27 Oct 2026Pending

Flat 2 52 Queens Avenue Hornsey London N10 3NU

Single storey rear extension

HGY/2026/2943
21 Oct 2026Pending

93 Muswell Hill Road Hornsey London N10 3HT

T1 Holm Oak , small tree poorly sited , fell to ground level

HGY/2026/2894
19 Oct 2026Pending

8 Muswell Road Hornsey London N10 2BH

G1 group of conifer situated at the rear of No 10 fell to ground level

HGY/2026/2866
15 Oct 2026Pending

26 Fortis Green Avenue Hornsey London N2 9NA

Erection of a single storey rear extension

HGY/2026/2840
13 Oct 2026Pending

22 Colney Hatch Lane Hornsey London N10 1DU

Small Pear - Crown reduce the height by 1.5m Crown reduce...

HGY/2026/2826
12 Oct 2026Pending

2C Woodberry Crescent Hornsey London N10 1PH

There is a large, mature tree in my garden. I have contacted my qualified tree s...

HGY/2026/2803

Important details

Council
Haringey
Application type
Approval of details reserved by a condition
Postcode
N10 3LY
Received
around 7 Jul 2026
Validated
7 Jul 2026
Ward
Muswell Hill
Decision
Approve
Decision date
13 Jul 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Ella Wright

Public comments

No public comments yet.

Last counted 22 Aug 2026

Read the comments on the council site ↗

Historical activity at this location

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

Within ~100m

Nearby activity

2025 Approved
28 Birchwood Avenue, Hornsey, London, N10 3BE
T1 - Cherry tree (5m) - take down to ground level. T2 - Lilac tree (4m) - take down to gr…
HGY/2025/2824
2025 Approved
19 Birchwood Avenue, Hornsey, London, N10 3BE
Erection of single-storey rear extension; new rooflight on the front roof slope; solar ph…
HGY/2025/3527
2025 Approved
11 Birchwood Avenue, Hornsey, London, N10 3BE
Lime - Crown reduce the height and spread back to previous (approx. 1.5m height and sprea…
HGY/2025/3047
2025 Approved
7 Birchwood Avenue, Hornsey, London, N10 3BE
Hazel: Reduce the two stems overhanging the garden down to a height of 3m. Maintenance wo…
HGY/2025/3019
2025 Approved
Cinema, Fortis Green Road, Hornsey, London, N10 3HP
Works to trees protected by a TPO. Tree work application to reduce the crown by 30% of th…
HGY/2025/1969
2025 Approved
18 Birchwood Avenue, Hornsey, London, N10 3BE
T1 Cherry: Fell Justification - 50% Dieback / dangerous NB: PLEASE TREAT THIS AS A DDD NO…
HGY/2025/2881
2025 Approved
27 Firs Avenue, Hornsey, London, N10 3LY
Proposal: We are proposing to have the large lime tree at the bottom of our garden pruned…
HGY/2025/2393
2025 Approved
28 Birchwood Avenue, Hornsey, London, N10 3BE
T1 - cherry tree (5m) - remove deadwood from crown and reduce branches overhanging paveme…
HGY/2025/2397
2025 Approved
101 Fortis Green Road, Hornsey, London, N10 3HP
Five Day Notice of intent to fell T13 Ash in the rear garden of 101 Fortis Green Road fla…
HGY/2025/2322
2025 Approved
Muswell Hill ATE, Grand Avenue, London, N10 3AY
The installation of 1 no. new rooftop quadpod mast and upgrades to the existing tripod ma…
HGY/2025/1409
2025 Approved
6 Birchwood Avenue, Hornsey, London, N10 3BE
Fig (T1) - Prune back to previous cuts (2m off) . To let more light into the garden. Magn…
HGY/2025/1360
2025 Refused
Cinema, Fortis Green Road, Hornsey, London, N10 3HP
Works to trees protected by a TPO. T1/T2 Lime trees - Remove to ground level T1 is a Semi…
HGY/2025/0731
2025 Approved
17 Grand Avenue, Hornsey, London, N10 3AY
Loft alteration with the erection of a new rear dormer by replacing existing rear dormer…
HGY/2025/0449
2025 Approved
12 Firs Avenue, Hornsey, London, N10 3LY
T1: Lime (6m): Re-pollard to previous points removing 3m of growth to keep tree at a size…
HGY/2025/0145
2024 Approved
Telephone Exchange, Grand Avenue, Hornsey, London, N10 3AY
Remove glass panes from a window on the first floor west elevation. An aluminium louvre w…
HGY/2024/2865
2024 Approved
121 Fortis Green Road, Hornsey, London, N10 3HP
T1 Ash - Reduce tree to previous pruning points T8 Oak - Reduce tree to previous points T…
HGY/2024/2800
2024 Approved
15 Birchwood Avenue, Hornsey, London, N10 3BE
T1 - privet tree (4m) - reduce branches back from lawn by approximately 2m. T2 - photinia…
HGY/2024/3232
2024 Refused
Cinema, Fortis Green Road, Hornsey, London, N10 3HP
T1/T2 Lime trees - Remove to ground level T1 is a Semi Mature lime, its pushing over the…
HGY/2024/2989
2024 Approved
33 Birchwood Avenue, Hornsey, London, N10 3BE
Replacement of the existing rear outrigger and conservatory with a single storey rear ext…
HGY/2024/2698
2024 Approved
9 Grand Avenue, Hornsey, London, N10 3AY
T3 Holly - Remove to ground level and treat stump tp prevent regrowth. G4 Mixed shrubs (n…
HGY/2024/2943
2016 Approved
28 Birchwood Avenue London N10 3BE
Construction of three storey rear extension creating a new kitchen / dining area and incr…
HGY/2016/3911
2016 Approved
25 Firs Avenue London N10 3LY
Demolition of existing rear extension, replaced with new extension. New rooflight on main…
HGY/2016/1902
2016 Approved
1 Firs Avenue London N10 3LY
Listed Building Consent for replace existing roof tiles
HGY/2016/0896
2016 Approved
5 Firs Avenue London N10 3LY
Erection of single storey rear extension with partial glazing to pitched roof.
HGY/2016/0523
2016 Approved
3 Firs Avenue London N10 3LY
Erection of rear ground floor extension with part glazed pitched roof and dormer to main…
HGY/2016/0050
Haringey
Planning Authority Score
4/10
Below average
#192 of 296 councils
Relevant to this application:
Major dwellings

Haringey is slower than most councils at deciding householder applications, ranking #209 out of 296. Householder applications are slightly more likely to be approved here (91%) 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
Haringey decision statistics
Based on MHCLG data, the year to March 2026
85%
Overall approval rate
Below avg (87%) #206 of 296
91%
Householder approved
Above avg (90%) #174 of 296
55%
Decided in 8 weeks
Below avg (63%) #209 of 296
40%
Extended time limit
Below avg (41%) #151 of 296
83%
Minor dwellings approved
279 decided (1-9 homes)
100%
Major dwellings approved
8 decided (10+ homes)
46%
Change of use approved
28 decided
1,469
Total decisions
217 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.