67 Oakleigh Park North London N20 9AU Data via plota.co.uk

26/2960/HSE - Householder Application Approved
Extensions & alterations

Proposal

First floor rear extension with terrace area and associated metal balustrade. Alterations and extension to roof to create new mansard roof (as approved under ) with the addition of front, side and rear dormer windows and rooflights to side elevations and flat roof Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
10 Aug 2026
✓
Consultation
20 Aug 2026
✓
Approved
5 Oct 2026

Approved on 5 Oct 2026 · Delegated Decision · Last checked 5 Oct 2026

Documents 9

Decision & officer reports 1

PDF DN: APPROVE HSE WITH CONDS Decision Notice · 5 Oct 2026 View ↗

Plans & drawings 5

PDF THE LOCATION PLAN Site Location Plan · 10 Aug 2026 View ↗ PDF PROPOSED FIRST FLOOR, ATTIC AND ROOF PLANS Drawing · 10 Aug 2026 View ↗ PDF PROPOSED CROSS SECTION Drawing · 10 Aug 2026 View ↗ PDF APPROVED / PROPOSED ELEVATIONS Drawing · 10 Aug 2026 View ↗ PDF EXISTING AND PROPOSED DRAWINGS Drawing · 10 Aug 2026 View ↗

Application forms 2

PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application Form · 10 Aug 2026 View ↗ PDF COMMUNITY INFRASTRUCTURE LEVY - COMPLETED FORM CIL Document · 10 Aug 2026 View ↗

Consultation & comments 1

PDF COMMENT(FULL) Public Comment · 7 Sept 2026 View ↗

All documents on the council site ↗

Associated applications 2

  • Part of

    FullRefusedcouncil archive
    • HouseholderFirst floor rear extension with terrace area and associated metal balustrade. Alterations…This application26/2960/HSE

Site constraints 4

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 Named permitted development rights are withdrawn here.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
Inside the Barnet built-up area; Public transport access: PTAL 1b (very poor), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building 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.

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Important details

Council
Barnet
Application type
Householder Application
Postcode
N20 9AU
Received
10 Aug 2026
Validated
10 Aug 2026
Ward
Whetstone
Case officer
Show
Target decision
5 Oct 2026
Decision
Approve subject to conditions
Decision date
5 Oct 2026
Decision level
Delegated Decision
Applicant
Show
Agent
AD Design Concepts

How this decision compares

Decided in 56 days from validation, 4 days slower than Barnet's median of 52 for extensions. Approved, as 75% of extensions here are.

86%decided within 8 weeks
75%approved
1,845decided in the last year

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

Public comments

1comment received
1 objecting

Last counted 5 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15147251
Planning Portal ref
PP-15147251
Comments by
10 Sept 2026
Site or press notice
20 Aug 2026
Statutory expiry
5 Oct 2026

Historical activity at this location

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

This property

Previous applications at this address

2022 Refused
First floor front infill and rear extensions with terrace area metal balustrades. Alterat…
22/1275/HSE
2021 Refused
First floor front infill and rear extensions with terrace area. Alteration to roof to inc…
21/0160/HSE
2019 Refused
First floor front and rear extension
19/5093/HSE
Within ~100m

Nearby activity

2025
76 Oakleigh Park North London N20 9AS
1 x Horse Chestnut (applicants ref. T3) - Reduce the height and spread by approximately 2…
TPP/0663/25
2023 Approved
79 Oakleigh Park North London N20 9AU
1 x False Acacia (applicants ref. T2) - Remove (fell) to near ground level and treat stum…
TPP/0721/23
2023 Decided
Fairfield Oakleigh Park North London N20 9AW
1 x Oak (applicants ref. T1) - Remove (fell) to near ground level and treat stump to inhi…
TPP/0720/23
2024 Approved
Fairfield Oakleigh Park North London N20 9AW
Ground works and associated fibrous root pruning to install a root barrier 50m in length…
TPP/0456/24
2023 Approved
79 Oakleigh Park North London N20 9AU
1 x False Acacia - Reduce height by 2 meters and lateral spread by 2 meters, remove dead…
TPP/0466/23
2021 Approved
74 Oakleigh Park North London N20 9AS
New front boundary wall and installation of new access gates and door (Amended Plans)
21/5749/HSE
2021 Refused
74 Oakleigh Park North London N20 9AS
New front boundary wall and installation of new access gates and door
21/4474/HSE
2021 Decided
Fairfield Oakleigh Park North London N20 9AW
2 x Oak (applicant's ref. T1 and T2) - Reduce by 30%. T5 and Standing in Group G5 of Tree…
TPP/0591/21
2021 Approved
64 Oakleigh Park South London N20 9JN
Single storey side and rear extension. 3no rooflight's to rear extension. Alteration to f…
21/1934/HSE
2021 Refused
76 Oakleigh Park North London N20 9AS
3 x Oak - Crown reduction throughout the entire crown by removing up to 2.5 meters growth…
TPP/0259/21
2021 Approved
76 Oakleigh Park North London N20 9AS
Two storey rear extension
21/1460/192
2020 Withdrawn
76 Oakleigh Park North London N20 9AS
Part single, part two storey rear extension. Conversion of garage into habitable room, in…
20/4701/HSE
2021 Approved
98 Chandos Avenue London N20 9DZ
Alterations to front roof including insertion of new window
21/0287/HSE
2021 Approved
98 Chandos Avenue London N20 9DZ
Single storey rear extension
21/0058/HSE
2021 Approved
98 Chandos Avenue London N20 9DZ
Roof extension involving hip to gable and side dormer windows
21/0057/192
2020 Refused
94 Chandos Avenue London N20 9DZ
Demolition of existing garage and lean-to. Erection of a single storey rear extension, ex…
20/4792/HSE
2020 Approved
71 Oakleigh Park North London N20 9AU
1 x Oak (shown in agent's photographs) - Fell to ground level. Standing in group G8 of Tr…
TPF/0575/20
2020 Refused
82 Oakleigh Park North London N20 9AX
Conversion of existing dwelling into 3no. self-contained flats with associated amenity sp…
20/0019/FUL
2019 Approved
78 Oakleigh Park North London N20 9AX
First floor front, side and rear extensions, with pitched roof to front. Alterations to r…
19/6083/HSE
2019 Withdrawn
78 Oakleigh Park North London N20 9AX
Erection of first floor front, side and rear extensions, together with internal alteratio…
19/4449/HSE
2017 Refused
76 Oakleigh Park North London N20 9AS
Demolition of existing dwelling and erection of a four storey building, including lower g…
17/0924/FUL
2016 Approved
Fairfield (rear Of 104 Chandos Avenue) Oakleigh Park North London N20 9AW
1 x Chestnut (applicant's ref. T1) - Remove 1 low limb overhanging shed and shrubbery at…
TPP/0804/16
2016 Approved
94 Chandos Avenue London N20 9DZ
Roof extension comprising hip to gable to rear with Juliette balcony and partial hip to g…
16/3952/HSE
2016 Withdrawn
94 Chandos Avenue London N20 9DZ
Addition of front gable extension and 1no rooflight to side elevation
16/3440/HSE
2016 Approved
63 Oakleigh Park North London N20 9AU
Single storey side/rear infill extension and single storey front extension. Extension to…
16/1991/HSE
Barnet
Planning Authority Score
6.2/10
Average
#90 of 296 councils
Relevant to this application:
Householder decisions

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
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