6 South Mount 1125 High Road London N20 0PJ Data via plota.co.uk

26/0458/RCU - Retention/Continued Use Approved

Proposal

Change of use of the property from a single family dwelling (Class C3) to a House in Multiple Occupation (HMO) (Class C4) for 3 people (Retrospective application) Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
6 Feb 2026
✓
Validated
10 Feb 2026
✓
Consultation
19 Feb 2026
✓
Approved
7 Apr 2026

Approved on 7 Apr 2026 · Delegated Decision · Last checked 28 Jul 2026

Associated applications 2

Site constraints 5

Article 4 direction
Article 4 Small Houses in Multiple Occupation (HMO) Area 1. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
Air quality management area: Barnet 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
1 listed building within 150 m; Inside the Barnet built-up area; Public transport access: PTAL 4 (good), 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.

Building

Floor area98 m² (1,055 sq ft)
Energy ratingD (61 out of 100), could reach C
PropertyEnd-terrace flat, 4 habitable rooms
Built1900 to 1929
HeatingRoom heaters, electric
WallsCavity wall, as built, no insulation (assumed)

From the energy performance certificate lodged in August 2024, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Barnet
Application type
Retention/Continued Use
Postcode
N20 0PJ
Received
6 Feb 2026
Validated
10 Feb 2026
Ward
Whetstone
Case officer
Show
Target decision
7 Apr 2026
Decision
Approve subject to conditions
Decision date
7 Apr 2026
Decision level
Delegated Decision
Applicant
Show

How this decision compares

Decided in 56 days from validation, about the council's usual 56 days. Approved, as 56% of changes of use here are.

68%decided within 8 weeks
56%approved
191decided in the last year

Plota live figures for changes of use decided by Barnet in the last twelve months, from validation. Barnet decision record →

Consultation & key dates

Alt. reference
PP-14683388
Planning Portal ref
PP-14683388
Comments by
12 Mar 2026
Site or press notice
19 Feb 2026
Statutory expiry
7 Apr 2026
Barnet
Planning Authority Score
6.2/10
Average
#90 of 296 councils
Relevant to this application:
Change of use

Barnet is faster than most councils at deciding householder applications, ranking #42 out of 296. Only 25% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Barnet is also one of the strictest councils - it refuses more householder applications than almost any other, with only 82% approved vs 90% nationally.

One of the strictest councils
only 82% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Barnet decision statistics
Based on MHCLG data, the year to March 2026
75%
Overall approval rate
Below avg (87%) #285 of 296
82%
Householder approved
Below avg (90%) #264 of 296
79%
Decided in 8 weeks
Above avg (63%) #42 of 296
25%
Extended time limit
Below avg (41%) #29 of 296
55%
Minor dwellings approved
319 decided (1-9 homes)
90%
Major dwellings approved
21 decided (10+ homes)
41%
Change of use approved
132 decided
2,541
Total decisions
625 refused in the year to March 2026

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.