18 Athenaeum Road London N20 9AE Data via plota.co.uk

26/2083/HSE - Householder Application Pending Consideration
Extensions & alterations

Proposal

Two storey side extension following demolition of the existing garage Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
4 Jun 2026
✓
Validated
26 Jun 2026
✓
Consultation
2 Jul 2026
Decision
Expected by 9 Sept 2026

This application is under consideration - no decision has been issued yet. Plota predicted a decision around 14 Sept 2026; it is now day 80. The consultation period closed on 23 Jul 2026.

Documents 6

Plans & drawings 3

PDF EXISTING Drawing · 26 Jun 2026 View ↗ PDF PROPOSED Drawing · 26 Jun 2026 View ↗ PDF LOCATION PLAN Site Location Plan · 4 Jun 2026 View ↗

Application forms 1

PDF APPLICATION FORM REDACTED Application Form · 4 Jun 2026 View ↗

Other documents 2

PDF CIL CIL Document · 4 Jun 2026 View ↗ PDF CIL CIL Document · 4 Jun 2026 View ↗

All documents on the council site ↗

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 Named permitted development rights are withdrawn here.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; Town centre 57 m away: Whetstone.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 11 September 2026. Historic England, the Environment Agency, Natural England 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 9AE
Received
4 Jun 2026
Validated
26 Jun 2026
Ward
Whetstone
Case officer
Show
Target decision
9 Sept 2026
Applicant
Show
Agent
The Design Consultant

Decision outlook

Day 80, past the statutory target. 97% of extensions in Barnet are decided within thirteen weeks, which runs to 25 Sept 2026; extensions of time are common, and the council need not decide on the day. Last seen undecided on 12 Sept 2026.

Day 8024 days past the 56-day target
87%decided within 8 weeks
74%approved
1,436decided in the last year

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

Public comments

No public comments yet.

Last counted 12 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PLP-00002916
Comments by
23 Jul 2026
Site or press notice
2 Jul 2026
Statutory expiry
21 Aug 2026

Historical activity at this location

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

Within ~100m

Nearby activity

2025
16 Oxford Gardens London N20 9AG
Single storey side/rear extension with 3no. rooflights with new patio area. New front por…
25/5161/HSE
2025 Approved
10 Athenaeum Road London N20 9AE
First floor rear extension with part hipped and part gable roof
25/2476/HSE
2025 Approved
10 Athenaeum Road London N20 9AE
Single storey rear extension with a depth of 8.00 metres from the rear wall of the origin…
25/2603/PNH
2024 Approved
28 Athenaeum Road London N20 9AE
Two storey rear extension following demolition of the existing conservatory. Associated r…
24/4979/HSE
2024 Approved
28 Athenaeum Road London N20 9AE
Single storey rear extension with a proposed depth of 5.00 metres, maximum height of 3.00…
24/4034/PNH
2024 Approved
59 Oakleigh Gardens London N20 9AB
Single storey rear extension
24/2031/HSE
2024 Approved
Barrydene Oakleigh Road North London N20 9HG
1 x Cedar - Prune back by 2 meters to boundary of the highway and crown lift to 4m (over…
TPP/0178/24
2023 Approved
1308 - 1312 High Road London N20 9HJ
Part demolition of the existing building, extension to the ground floor commercial (flexi…
23/5437/FUL
2022 Approved
57 Oakleigh Gardens London N20 9AB
Single storey side and rear extension. New front hardstanding to facilitate off street pa…
22/1795/HSE
2022 Approved
2 Oxford Gardens London N20 9AG
Conversion of the existing garage into habitable room, insertion of window to replace the…
22/2662/192
2022 Refused
54 Oakleigh Gardens London N20 9AB
Conversion of existing dwelling into 2no self contained flats. Associated recycling/refus…
22/0064/FUL
2021 Refused
54 Oakleigh Gardens London N20 9AB
Conversion of existing dwelling into 2no self contained flats. Associated recycling/refus…
21/5230/FUL
2021 Refused
59 Oakleigh Gardens London N20 9AB
A single storey rear extension measuring 6.00 metres in depth from the original rear wall…
21/3222/PNH
2021 Withdrawn
59 Oakleigh Gardens London N20 9AB
Part single part two storey rear extension. Roof extension involving rear dormer window w…
21/2480/HSE
2021 Approved
19 Oxford Gardens London N20 9AG
Single storey rear extension. Conversion of garage into habitable rooms, insertion of win…
21/1253/HSE
2021 Approved
18 Oxford Gardens London N20 9AG
New front porch, partial conversion of garage into habitable space. Alteration to rear fe…
21/0433/HSE
2019 Approved
2 Athenaeum Road London N20 9AE
Replacement and relocated antennas, and associated ancillary development
19/2798/LIC
2019 Withdrawn
Prospect House 2 Athenaeum Road London N20 9AE
Removal of existing stub-tower and 6 no. antennas, replacement with 12 no. proposed pole…
19/0330/FUL
2019 Approved
25 And 25A Athenaeum Road London N20 9AA
Single storey rear extension to both properties following demolition of the existing cons…
19/0609/FUL
2018 Approved
43 Oxford Gardens London N20 9AG
Erection of a new two bed dwelling house. Associated refuse and recycling, landscaping, n…
18/7327/FUL
2017 Approved
3 Athenaeum Road London N20 9AA
Demolition of existing building. Construction of four-storey building to provide office s…
17/1418/FUL
2017 Approved
St Mary Magdalen Church Athenaeum Road London N20 9AE
Alterations to existing car park, provision of 7no additional parking spaces following re…
17/1927/FUL
2017 Refused
15 Athenaeum Road London N20 9AA
Erection of conservatory to rear
17/1698/HSE
2016 Refused
27 Athenaeum Road London N20 9AL
Single storey front extension
16/4972/HSE
2016 Approved
Barrydene 53 Oakleigh Road North London N20 9HG
1 x Walnut (applicant's ref. T3) - Remove deadwood, aerial inspection. Standing in Group…
TPP/0129/16
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