138 Muswell Hill Road Hornsey London N10 3JD Data via plota.co.uk

HGY/2025/2770 - Full planning permission Approved

Proposal

Internal reconfiguration of first and second floors and conversion of the property from four self-contained flats and a five-bedroom HMO to seven self-contained 1-bedroom flats with no shared facilities (Class C3 Use). Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
around 27 Oct 2025
✓
Approved
30 Jan 2026

Approved on 30 Jan 2026 · Delegated Decision · Last checked 10 Oct 2026

Documents 9

Decision & officer reports 2

PDF DM Decision.pdf PDF · 30 Jan 2026 View ↗ PDF DM Final Officer Report.pdf PDF · 29 Jan 2026 View ↗

Statements & assessments 1

PDF Planning Statement Document · 9 Oct 2025 View ↗

Plans & drawings 5

PDF 370/P5 – Front Garden Plan Plans · 21 Oct 2025 View ↗ PDF 370/1 – Proposed Floor Plans Plans · 9 Oct 2025 View ↗ PDF 370/3 – Block Plan Plans · 9 Oct 2025 View ↗ PDF 370/1 – Existing Floor Plans Plans · 9 Oct 2025 View ↗ PDF Location Plan Plans · 9 Oct 2025 View ↗

Application forms 1

PDF Application Form (Redacted) Application Form · 9 Oct 2025 View ↗

All documents on the council site ↗

Site constraints 6

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 ↗
Local nature reserve 140 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.
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Inside the Haringey built-up area; Public transport access: PTAL 2 (poor), TfL 2023, for the 100 m square; Metropolitan Open Land 56 m away.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 2 November 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.

Building

Floor area192 m² (2,067 sq ft)
Energy ratingD (65 out of 100), could reach C
PropertyMid-terrace house, 8 habitable rooms
Built1930 to 1949
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in November 2025, 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

18 Sept 2026Pending

112 Muswell Hill Road Hornsey London N10 3JD

Amalgamation of 2no. flats to create 1no. self-contained flat (Use Class C3).

HGY/2026/2415
2 Nov 2026Pending

9 Muswell Hill Hornsey London N10 3TH

Approval of details pursuant to condition 6 (lime mortar specification) attached...

HGY/2026/2992
22 Oct 2026Pending

Flat 3 13 Muswell Hill Road Hornsey London N10 3JB

Construction of a rear balcony terrace with associated balustrading, access door...

HGY/2026/2905
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

Nearby new applications

29 Oct 2026Pending

41 Church Crescent Hornsey London N10 3NA

T1: Lime (10m): Re-pollard to previous points removing up to 3m of growth to kee...

HGY/2026/2964
22 Oct 2026Pending

Flat 3 13 Muswell Hill Road Hornsey London N10 3JB

Construction of a rear balcony terrace with associated balustrading, access door...

HGY/2026/2905
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
15 Oct 2026Pending

26 Fortis Green Avenue Hornsey London N2 9NA

Erection of a single storey rear extension

HGY/2026/2840
8 Oct 2026Approved

80C St James's Lane Hornsey London N10 3RD

Rear Garden: T1: Mature Lime: Approximately 13.00m: Growing between No.53 The...

HGY/2026/2786
7 Oct 2026Approved

Primrose House 22 Leaside Avenue Hornsey London N10 3BU

There is a crab apple in the back garden which has been reduced around 2 years a...

HGY/2026/2779

Important details

Council
Haringey
Application type
Full planning permission
Postcode
N10 3JD
Received
around 27 Oct 2025
Validated
27 Oct 2025
Ward
Muswell Hill
Case officer
Show
Decision
Approve with Conditions
Decision date
30 Jan 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Show

How this decision compares

Decided in 95 days from validation, 36 days slower than Haringey's median of 59 for full applications. Approved, as 85% of full applications here are.

45%decided within 8 weeks
85%approved
656decided in the last year

Plota live figures for full applications decided by Haringey in the last twelve months, from validation. Haringey decision record →

Public comments

1comment received
1 objecting

Last counted 10 Oct 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
First And Second Floor Flat, 15 Muswell Hill Road, Hornsey, London, N10 3JB
New dormer window to front elevation to match neighboring properties.
HGY/2025/3201
2024 Approved
Ground Floor Flat, 118 Muswell Hill Road, Hornsey, London, N10 3JD
Erection of a residential outbuilding.
HGY/2024/1305
2023 Approved
Flat 1, 130 Muswell Hill Road, Hornsey, London, N10 3JD
Side infill extension to existing rear extension, replacement of existing flat roof.
HGY/2023/0296
2022 Refused
Flat 1 130 Muswell Hill Road Hornsey London N10 3JD
Side infill extension to existing rear extension, replacement of existing faulty flat roo…
HGY/2022/4026
2022 Approved
Ground Floor Flat, 15, Muswell Hill Road, London, N10 3JB
Single storey rear extension
HGY/2022/2295
2022 Approved
7, Muswell Hill Road, London, N10 3JB
Construction of rear dormer extension to facilitate loft conversion.
HGY/2022/0394
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
2021 Approved
Ground Floor Flat 120 Muswell Hill Road London N10 3JD
Erection of rear garden outbuilding.
HGY/2021/0972
2021 Approved
19, Muswell Hill Road, London, N10 3JB
Proposed ground floor rear extension; first floor terrace and second floor terrace.
HGY/2021/0331
2020 Approved
142, Muswell Hill Road, London, N10 3JE
Change of use of the property from a large HMO (sui generis) to a dwelling house (C3); De…
HGY/2020/2672
2019 Approved
Ground Floor Flat, 120, Muswell Hill Road, London, N10 3JD
Erection of rear garden outbuilding, replacing existing, and associated works to replace…
HGY/2019/2357
2019 Refused
Flat 1, 5, Muswell Hill Road, London, N10 3JB
Proposed single storey ground floor side to rear extension.
HGY/2019/1248
2019 Withdrawn
Ground Floor Flat, 120, Muswell Hill Road, London, N10 3JD
Single storey outbuilding in rear garden (incidental use)
HGY/2019/1591
2019 Approved
19, Muswell Hill Road, London, N10 3JB
Erection of ground floor rear extension and first floor balcony.
HGY/2019/1630
2018 Approved
15, Muswell Hill Road, London, N10 3JB
Conversion of existing property containing 2 x self-contained flats (C3 use) into a House…
HGY/2018/2291
2019 Approved
Ground Floor Flat, 108, Muswell Hill Road, London, N10 3JD
Formation of rear roof dormer extension to replace existing
HGY/2019/0149
2018 Approved
Ground Floor Flat, 120, Muswell Hill Road, London, N10 3JD
Construction of a single storey rear extension, following the demolition of an existing s…
HGY/2018/3266
2018 Approved
Ground Floor Flat 120 Muswell Hill Road London N10 3JD
Construction of a single storey rear extension
HGY/2018/0277
2017 Approved
Ground Floor Flat 120 Muswell Hill Road London N10 3JD
Erection of a single storey rear extension
HGY/2017/0731
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
2025 Refused
140 Muswell Hill Road, Hornsey, London, N10 3JD
Change of Use to Dog Grooming, Daycare, and Boarding Facility (Sui Generis)
HGY/2025/1328
2025 Approved
25 Muswell Hill Road, Hornsey, London, N10 3JB
Lawful development: Existing use, for a first floor roof terrace with associated railings.
HGY/2025/1099
2023 Approved
Ground Floor Flat, 15 Muswell Hill Road, Hornsey, London, N10 3JB
Removal/Variation of condition 2 and 3 of planning permission with ref: HGY/2022/2295 to…
HGY/2023/1166
2021 Approved
142, Muswell Hill Road, London, N10 3JE
Non material amendment to planning permission HGY/2020/2672 for works summarised as ; 1…
HGY/2021/3508
2021 Approved
142, Muswell Hill Road, London, N10 3JE
Approval of details pursuant to condition 5 (professional oversight of basement works) at…
HGY/2021/0270
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

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

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.