35 Rathcoole Avenue Hornsey London N8 9LY Data via plota.co.uk

HGY/2026/2179 - Lawful development Approved
Extensions & alterations

Proposal

Certificate of Lawfulness (Proposed Use): Outrigger roof extension. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
around 31 Jul 2026
✓
Approved
28 Aug 2026

Approved on 28 Aug 2026 · Delegated Decision · Last checked 24 Sept 2026

Documents 5

Decision & officer reports 2

PDF DM Decision.pdf PDF · 28 Aug 2026 View ↗ PDF DM Final Officer Report.pdf PDF · 28 Aug 2026 View ↗

Plans & drawings 2

PDF P26-50.2 EVANS (LOFT SECTIONS)-PLANNING SUBMISSION.pdf PDF · 31 Jul 2026 View ↗ PDF P26-50.1 EVANS (LOFT PLANS)-PLANNING SUBMISSION.pdf PDF · 31 Jul 2026 View ↗

Other documents 1

PDF ApplicationFormRedacted.pdf PDF · 31 Jul 2026 View ↗

All documents on the council site ↗

Site constraints 3

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 ↗
Also on the record
Inside the Haringey built-up area; Public transport access: PTAL 3 (moderate), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 6 October 2026. 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 2

Last sold for £560,000 in December 2009. Terraced house, freehold.

15 December 2009£560,000
28 May 1997£149,950

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

Building

Floor area134 m² (1,442 sq ft)
Energy ratingE (54 out of 100), could reach C
PropertyMid-terrace house, 6 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in December 2014, 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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Important details

Council
Haringey
Application type
Lawful development
Postcode
N8 9LY
Received
around 31 Jul 2026
Validated
31 Jul 2026
Ward
Hornsey
Case officer
Show
Decision
Permitted Development
Decision date
28 Aug 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Show

How this decision compares

Decided in 28 days from validation, 23 days faster than Haringey's median of 51 for lawful development certificates. Approved, as 84% of lawful development certificates here are.

81%decided within 8 weeks
84%approved
33,528decided in the last year

Plota live figures for lawful development certificates decided across the UK in the last twelve months, from validation; too few recent lawful development certificates in Haringey to go on. Haringey decision record →

Public comments

No public comments yet.

Last counted 24 Sept 2026

Read the comments on the council site ↗

Historical activity at this location

26 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2024 Approved
Erection of single storey rear extension to create a wraparound extension & new pitched r…
HGY/2024/1794
Within ~100m

Nearby activity

2025 Approved
41 Harvey Road, Hornsey, London, N8 9PD
Replacement of existing timber windows with double glazed UPVC units.
HGY/2025/3378
2025 Approved
First Floor Flat A, 56 Rathcoole Avenue, Hornsey, London, N8 9NA
Installation of 2no. front rooflights.
HGY/2025/3420
2025 Approved
5 Rathcoole Avenue, Hornsey, London, N8 9LY
Erection of a rear dormer roof extension next to the existing rear outrigger terrace incl…
HGY/2025/0878
2025 Approved
55 Rathcoole Avenue, Hornsey, London, N8 9LY
Lawful development: Proposed rear dormer and installation of 2 x front and 1 rear rooflig…
HGY/2025/0899
2024 Approved
First Floor Flat B, 43 Harvey Road, Hornsey, London, N8 9PD
Proposed loft outrigger dormer extension and enlargement of rear first floor window
HGY/2024/2433
2024 Approved
Flat A, 8 Rathcoole Avenue, Hornsey, London, N8 9NA
Rear roof extension with solar panels, front roof lights, replacement rear door and all a…
HGY/2024/3180
2024 Approved
Ground Floor Flat A 39 Harvey Road Hornsey London N8 9PD
Replacement of existing timber sash windows with double glazed uPVC windows.
HGY/2024/1397
2024 Approved
Flat B 39 Harvey Road Hornsey London N8 9PD
Replacement of existing timber sash windows with double glazed uPVC windows.
HGY/2024/1393
2024 Approved
39 Harvey Road, Hornsey, London, N8 9PD
Replacement of existing timber sash windows with double glazed uPVC windows.
HGY/2024/0243
2023 Approved
21 Harvey Road, Hornsey, London, N8 9PD
Replaces the existing timber sash windows with modern thick profile double glazed uPVC un…
HGY/2023/2855
2023 Approved
Flat A, 1 Rathcoole Avenue, Hornsey, London, N8 9LY
Part retrospective application for roof extension and alterations to elevations
HGY/2023/1449
2022 Approved
Flat B, 47 Rathcoole Avenue, Hornsey, London, N8 9LY
Erection of rear dormer extension and installation of two roof lights to the front roof s…
HGY/2022/4060
2022 Approved
47 Ground Floor Flat A, Rathcoole Avenue, Hornsey, London, N8 9LY
Erection of single storey rear extension
HGY/2022/4011
2022 Approved
1, Harvey Road, London, N8 9PD
Erection of first floor side/rear extension, removal of existing rear dormer and installa…
HGY/2022/2155
2022 Approved
7, Rathcoole Avenue, London, N8 9LY
New single storey rear extension, incorporating the existing party wall
HGY/2022/2475
2022 Approved
First Floor Flat B, 43, Harvey Road, London, N8 9PD
Alteration of upper floor windows
HGY/2022/0434
2022 Approved
Upper Flat, 46, Rathcoole Avenue, London, N8 9NA
Replacement of existing exterior windows of Flat B with new double glazed windows (uPVC w…
HGY/2022/0415
2021 Refused
1a, Rathcoole Avenue, London, N8 9LY
Creation of part two-storey, part three-storey extension, and creation of roof terrace ab…
HGY/2021/2510
2021 Approved
24 Rathcoole Avenue London N8 9NA
Retention of 1 x 1 bedroom flat and 1 x 3 bedroom flat.
HGY/2021/1200
2021 Approved
Second Floor Flat B, 29, Rathcoole Avenue, London, N8 9LY
Rear roof extension and construction of roof terrace with associated trellis fencing, ins…
HGY/2021/0669
2017 Approved
19 Harvey Road London N8 9PD
Erection of of a single storey rear extension (householder application)
HGY/2017/0263
2016 Approved
Flat A 16 Rathcoole Avenue London N8 9NA
Retention of rear roof terrace with the addition of screening
HGY/2016/4108
2016 Approved
Flat A 10 Rathcoole Avenue London N8 9NA
Conversion of roof over rear outrigger into a dormer extension and roof lights to front r…
HGY/2016/2569
2016 Approved
Flat B 23 Rathcoole Avenue London N8 9LY
Creation of small rear 2nd floor roof terrace, using the area currently under eaves stora…
HGY/2016/1803
2016 Refused
Flat A 10 Rathcoole Avenue London N8 9NA
Conversion of roof over rear outrigger into a dormer extension and roof lights to front r…
HGY/2016/1488
Haringey
Planning Authority Score
4/10
Below average
#192 of 296 councils
Relevant to this application:
Householder decisions

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.