26 Onslow Gardens Hornsey London N10 3JU Data via plota.co.uk

Under Consultation HGY/2026/1669
Extensions & alterations
Council
Haringey 4/10
Date received
24 Jun 2026
Date validated
24 Jun 2026
Postcode
N10 3JU

Description

Erection of a wrap around ground floor rear extension and extension of first floor rear outrigger; erection of two front roof lights. Data via plota.co.uk

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Other new applications on this street

24 Onslow Gardens Hornsey London N10 3JU

Certificate of lawfulness for the proposed erection of a rear dormer.

HGY/2026/0940 - 30 Mar 2026

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53 Talbot Road Hornsey London N6 4QX

Replacement timber windows

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HGY/2026/1510 - 24 Jun 2026

50 Woodland Gardens Hornsey London N10 3UA

Removal/variation of condition 3 (Design and Materials) as attached to planning ...

HGY/2026/1413 - 23 Jun 2026

Tetherdown Primary School Grand Avenue Hornsey London N10 3BP

Five Day Notice. Cut down a dead tree (believed to be a Quince) in the playgrou...

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Historical activity at this location

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

Within ~100m

Nearby activity

2025 Approved
50 Woodland Gardens, Hornsey, London, N10 3UA
De-conversion of 3 x self-contained flats back into a single dwelling house.
HGY/2025/2672
2025 Approved
31 Onslow Gardens, Hornsey, London, N10 3JT
Replacement of all existing timber windows with double glaze windows, replacement of exis…
HGY/2025/1491
2025 Approved
7 Onslow Gardens, Hornsey, London, N10 3JT
Demolition of existing ground floor rear extension and first floor conservatory. Erection…
HGY/2025/0466
2024 Approved
7 Onslow Gardens, Hornsey, London, N10 3JT
Demolition of existing ground floor rear extension and first floor conservatory. Erection…
HGY/2024/3042
2024 Approved
36 Woodland Gardens, Hornsey, London, N10 3UA
Replacement of existing single storey conservatory with glazed ground floor rear extensio…
HGY/2024/2736
2024 Approved
Second Floor Flat C, 26 Woodland Gardens, Hornsey, London, N10 3UA
Replacement window to front dormer window on the second floor.
HGY/2024/1065
2023 Approved
13 Onslow Gardens, Hornsey, London, N10 3JT
Retention of use of the property as a large HMO (sui generis), including its reduction fr…
HGY/2023/2202
2023 Approved
15 Onslow Gardens, Hornsey, London, N10 3JT
Formation of new crossover and off street parking to front of property
HGY/2023/2695
2023 Refused
13 Onslow Gardens, Hornsey, London, N10 3JT
Use of existing outbuilding, to provide sleeping accommodation ancillary to existing prop…
HGY/2023/1659
2023 Approved
13 Onslow Gardens, Hornsey, London, N10 3JT
Construction of an outbuilding
HGY/2023/0540
2023 Approved
Ground Floor Flat, 72 Woodland Gardens, Hornsey, London, N10 3UA
Alterations to existing rear extension, roof light with new external windows
HGY/2023/0721
2022 Approved
19, Onslow Gardens, London, N10 3JT
Erection of a single storey ground floor side infill to existing outrigger, lower ground…
HGY/2022/1245
2022 Approved
Flat 1, 21, Woodland Gardens, London, N10 3UE
Erection of single storey rear extension, addition of new rear doors and creation of rais…
HGY/2022/1731
2022 Approved
Flat 1, 46, Onslow Gardens, London, N10 3JX
Proposed single storey rear/side infill extension to ground floor garden flat with green…
HGY/2022/1952
2022 Withdrawn
13, Onslow Gardens, London, N10 3JT
Change of use of property from C4 use (accommodation for 3-6 unrelated individuals) to Su…
HGY/2022/0368
2022 Approved
1, Onslow Gardens, London, N10 3JT
Erection of a single storey rear infill kitchen extension.
HGY/2022/1698
2022 Refused
1, Onslow Gardens, London, N10 3JT
Erection of single storey rear infill extension. Alterations and roof extension of existi…
HGY/2022/1170
2021 Approved
15, Onslow Gardens, London, N10 3JT
Single storey ground floor extension to rear of building. Re-modelling of first floor out…
HGY/2021/3354
2021 Approved
Ground Floor Flat A, 26, Woodland Gardens, London, N10 3UA
Replacement of 3 x like for like front timber sash windows; replacement of 1x side timber…
HGY/2021/2079
2021 Approved
5, Woodland Gardens, London, N10 3UE
Rear roof extension and associated roof terrace to existing two storey outrigger and 4 x…
HGY/2021/1723
2017 Approved
12 Woodland Gardens London N10 3UA
Single storey rear extension and installation of three new windows
HGY/2017/0934
2016 Approved
20 Onslow Gardens London N10 3JU
Single storey rear/side extension with 2x sky lanterns, replace existing 1st floor roof w…
HGY/2016/2640
2016 Withdrawn
20 Onslow Gardens London N10 3JU
First floor rear balcony with glazed balustrade and obscure 1.7m high glazed panels to si…
HGY/2016/2735
2016 Approved
20 Onslow Gardens London N10 3JU
Application for a Lawful Development Certificate for rear roof extension to facilitate a…
HGY/2016/2639
2016 Approved
108 Muswell Hill Road London N10 3JD
Change of use from studio to use as studio and residential annex to main building
HGY/2016/0406
Haringey
Planning Authority Score
4/10
Below average
#198 of 292 councils
Relevant to this application:
Householder decisions

Haringey is slower than most councils at deciding householder applications, ranking #202 out of 292. 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 performance
Based on MHCLG data, 2025
85%
Overall approval rate
Below avg (87%) #208 of 292
91%
Householder approved
Above avg (90%) #169 of 292
56%
Decided in 8 weeks
Below avg (64%) #202 of 292
41%
Extended time limit
Above avg (40%) #156 of 292
81%
Minor dwellings approved
281 decided (1-9 homes)
100%
Major dwellings approved
8 decided (10+ homes)
60%
Change of use approved
25 decided
1,414
Total decisions
208 refused in 2025
Source: MHCLG planning statistics · See full council rankings