21 Elmhurst Avenue London N2 0LT Data via plota.co.uk

26/3872/192 - Proposed Lawful Development Certificate Pending Consideration
Extensions & alterations

Proposal

Erection of a single storey garden room within the rear garden Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
26 Oct 2026
Decision
Expected by 21 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 8 Dec 2026 and 20 Dec 2026, from Barnet's recent extensions.

Documents 3

Plans & drawings 1

PDF EXISTING/PROPOSED Drawing · 25 Oct 2026 View ↗

Application forms 2

PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application Form · 25 Oct 2026 View ↗ PDF COMMUNITY INFRASTRUCTURE LEVY - COMPLETED FORM CIL Document · 25 Oct 2026 View ↗

All documents on the council site ↗

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 Named permitted development rights are withdrawn here.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 2 (poor), 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 27 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
Proposed Lawful Development Certificate
Postcode
N2 0LT
Received
26 Oct 2026
Validated
26 Oct 2026
Ward
East Finchley
Case officer
Show
Target decision
21 Dec 2026
Applicant
Show
Agent
Show

Decision outlook

Day 2 of the 56-day target. Barnet usually decides extensions by day 52.

Day 254 days to the 56-day target
87%decided within 8 weeks
75%approved
1,888decided 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 27 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15309661
Planning Portal ref
PP-15309661
Statutory expiry
21 Dec 2026

Historical activity at this location

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

This property

Previous applications at this address

2018 Approved
Extension to roof including hip to gable with rear dormer window and 3no. front rooflights
18/1649/192
2017 Approved
Single storey rear extension following demolition of existing rear conservatory and exist…
17/7710/HSE
Within ~100m

Nearby activity

2025 Approved
13 Talbot Avenue London N2 0LS
Single storey rear extension with 1no. rooflight, extension to existing patio area and al…
25/3403/HSE
2025 Approved
13 Talbot Avenue London N2 0LS
Roof extension involving hip to gable, rear dormer windows with 2no. front facing rooflig…
25/3404/192
2025 Approved
Flat 2 Elmhurst Court Elmhurst Avenue London N2 0LU
Roof extension involving rear dormer window
25/1404/FUL
2024 Approved
Footpath O/s 23 Elmhurst Avenue London N2 0LT
Installation of 1no. green Virgin Media cabinet
24/4742/LIC
2022 Approved
20 Elmhurst Avenue London N2 0LT
Erection of a front outbuilding
22/3595/HSE
2024 Withdrawn
Rear Of 15 Talbot Avenue London N2 0LS
Erection of a cottage following demolition of the existing rear studio. Associated refuse…
24/0390/FUL
2023 Approved
29 Elmhurst Avenue London N2 0LT
Roof extension involving hip to gable, rear dormer, 2no. front facing rooflights and new…
23/0250/192
2022 Approved
117 And 119 Leslie Road London N2 8BH
Erection of a single storey rear extension with 2no. rooflights. New external staircase t…
22/5377/FUL
2022 Approved
8 Trinity Avenue London N2 0LX
Single storey side/rear extension
22/1274/HSE
2020 Approved
23 Elmhurst Avenue London N2 0LT
Single storey rear extension with pitched green roof
20/3592/HSE
2020 Approved
2 Elmhurst Avenue London N2 0LT
Single storey side and rear extension with green roof, new green wall to side elevation o…
20/2067/HSE
2020 Approved
2 Elmhurst Avenue London N2 0LT
Roof extension involving hip to gable, rear dormer and 3no front facing rooflights. Erect…
20/1758/192
2019 Approved
35 Elmhurst Avenue London N2 0LT
Single storey rear extension with a proposed depth of 4.48 metres from original rear wall…
19/2936/PNH
2019 Approved
23 Elmhurst Avenue London N2 0LT
Single storey rear extension with green roof
19/1834/HSE
2019 Approved
2 Elmhurst Avenue London N2 0LT
Roof extension including, hip to gable, rear dormer window and 3no. front facing roofligh…
19/2120/192
2019 Refused
2 Elmhurst Avenue London N2 0LT
Roof extension involving hip to gable, rear dormer window and 3no front facing rooflights…
19/1154/192
2018 Approved
2 Elmhurst Avenue London N2 0LT
Single storey rear extension with a proposed depth of 6.0 metres from original rear wall…
18/7657/PNH
2018 Approved
23 Elmhurst Avenue London N2 0LT
Single storey rear extension with a proposed depth of 5 metres from original rear wall, e…
18/6631/PNH
2018 Refused
23 Elmhurst Avenue London N2 0LT
Single storey rear extension with a proposed depth of 5 metres from original rear wall, e…
18/5047/PNH
2018 Refused
23 Elmhurst Avenue London N2 0LT
Single storey rear extension with a proposed depth of 5 metres from original rear wall, e…
18/5042/PNH
2018 Withdrawn
23 Elmhurst Avenue London N2 0LT
Single storey rear extension
18/1199/HSE
2017 Refused
23 Elmhurst Avenue London N2 0LT
Single storey rear extension with a proposed maximum depth of 5.5 metres from original re…
17/3068/PNH
2016 Approved
23 Elmhurst Avenue London N2 0LT
Single storey rear extension
16/7447/HSE
2016 Withdrawn
12 Elmhurst Avenue London N2 0LT
Erection of a single storey outbuilding to rear
16/6212/HSE
2016 Approved
23 Elmhurst Avenue London N2 0LT
Single storey rear extension
16/2215/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