24 Western Avenue London NW11 9HJ Data via plota.co.uk

26/1996/HSE - Householder Application Approved
Extensions & alterations

Proposal

Single storey rear extension. First floor rear extension (AMENDED DESCRIPTION) Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
28 May 2026
✓
Consultation
4 Jun 2026
✓
Approved
4 Aug 2026

Approved on 4 Aug 2026 · Delegated Decision · Last checked 8 Aug 2026

Documents 5

Decision & officer reports 1

PDF DN: APPROVE HSE WITH CONDS Decision Notice · 4 Aug 2026 View ↗

Plans & drawings 1

PDF EXISTING/PROPOSED Drawing · 29 May 2026 View ↗

Application forms 2

PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application Form · 28 May 2026 View ↗ PDF COMMUNITY INFRASTRUCTURE LEVY - COMPLETED FORM CIL Document · 28 May 2026 View ↗

Other documents 1

PDF SITE NOTICE Photo · 20 Jul 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 Named permitted development rights are withdrawn here.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
1 listed building within 150 m; Inside the Barnet built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument 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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Other new applications on this street

10 Aug 2026Pending

36 Western Avenue London NW11 9HJ

Single storey rear and infill extension with new roof and 2no. rooflights and so...

26/2957/HSE
8 Sept 2026Pending

2A Western Avenue London NW11 9HH

Demolition of existing dwelling and erection of a part single, part two storey b...

26/3277/FUL
30 Apr 2026Approved

17 Western Avenue London NW11 9HE

Part single, part two storey side and rear extensions. Roof extension with side/...

26/1632/HSE

Nearby new applications

10 Sept 2026Pending

Ground Floor Flat 21 Elmcroft Crescent London NW11 9TB

Single storey rear infill extension

26/3306/FUL
8 Sept 2026Pending

2A Western Avenue London NW11 9HH

Demolition of existing dwelling and erection of a part single, part two storey b...

26/3277/FUL
10 Sept 2026Pending

31 Woodlands London NW11 9QJ

Single storey rear infill extension

26/3319/HSE
9 Sept 2026Pending

61 Montpelier Rise London NW11 9DU

2no. single storey rear extensions with a proposed depth of 6.00 metres, a maxim...

26/3281/PNH
7 Sept 2026Pending

19 The Grove London NW11 9SJ

Roof extension involving crown roof to outrigger, rear dormer window, 3no. front...

26/3273/192
7 Sept 2026Pending

19 The Grove London NW11 9SJ

Single storey rear extension with a proposed depth of 5 metres, maximum height o...

26/3271/PNH

Important details

Council
Barnet
Application type
Householder Application
Postcode
NW11 9HJ
Received
28 May 2026
Validated
28 May 2026
Ward
Golders Green
Case officer
Show
Target decision
23 Jul 2026
Decision
Approve subject to conditions
Decision date
4 Aug 2026
Decision level
Delegated Decision
Applicant
Show
Agent
KDA Designs Ltd

How this decision compares

Decided in 68 days from validation, 15 days slower than Barnet's median of 53 for extensions. Approved, as 74% of extensions here are.

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 8 Aug 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14968823
Site or press notice
4 Jun 2026

Historical activity at this location

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

This property

Previous applications at this address

2025 Approved
Single storey rear extension with a proposed depth of 6.00m, maximum height of 3.00m and…
25/4897/PNH
Within ~100m

Nearby activity

2025
24 Heathfield Gardens London NW11 9HX
Part single, part two storey rear extension. Single storey front porch extension
25/5095/HSE
2025
24 Heathfield Gardens London NW11 9HX
Roof extension involving hip to gable, rear dormer window. Front porch extension (AMENDED…
25/5093/192
2025
24 Heathfield Gardens London NW11 9HX
2no. single-storey rear extensions with a maximum proposed depth of 6.0m, maximum height…
25/5094/PNH
2025 Approved
17 Western Avenue London NW11 9HE
Part single, part two storey rear and single storey side extensions. Roof extension with…
25/4041/HSE
2025 Approved
17 Western Avenue London NW11 9HE
2no. single storey rear extensions with a depth of 6.00 metres, maximum height of 3.50 me…
25/2347/PNH
2025 Approved
17 Western Avenue London NW11 9HE
Roof extension with side/rear wraparound dormers with 4no. front facing rooflights. New s…
25/2348/192
2025 Approved
44 Western Avenue London NW11 9HJ
Roof extension involving wraparound rear and side dormers
25/1208/192
2025
44 Western Avenue London NW11 9HJ
Single storey rear extension. New front porch
25/1269/HSE
2024 Approved
O/S 27 Golders Manor Drive London NW11 9HU
Installation Of 1no. Green Virgin Media Cabinet
24/5204/LIC
2024 Approved
O/S 26 Heathfield Gardens London NW11 9HX
Installation of 1no. Green Virgin Media cabinet
24/5211/LIC
2024 Refused
23 Western Avenue London NW11 9HE
Conversion and extension of an existing outbuilding into a single storey dwelling. Associ…
24/3683/FUL
2024 Withdrawn
23 Western Avenue London NW11 9HE
Conversion of an existing outbuilding into a one and a half storey dwelling. Associated a…
24/2585/FUL
2023 Refused
73 Highfield Gardens London NW11 9HA
Part single, part two storey side and rear extension with new raised terrace area. New fr…
23/5525/HSE
2023 Approved
73 Highfield Gardens London NW11 9HA
Roof extension including hip to gable, enlarged rear dormer and side gable window
23/4475/192
2023 Approved
25 Western Avenue London NW11 9EY
Single storey side and rear extension with succah roofs. New front porch
23/0108/HSE
2022 Approved
20 Heathfield Gardens London NW11 9HX
Part single, part two storey rear extension
22/1201/HSE
2021 Refused
80 Golders Manor Drive London NW11 9HT
Demolition of existing buildings and erection of new building with front and rear dormers…
21/4627/FUL
2021 Approved
15 Western Avenue London NW11 9HE
Single storey side and rear extension
21/4229/HSE
2021
20 Heathfield Gardens London NW11 9HX
Roof extension involving hip to gable, rear dormer window with Juliette balcony, 2no fron…
21/4639/192
2021 Approved
14 Heathfield Gardens London NW11 9HX
Installation of access ramp to front elevation
21/3002/HSE
2017 Approved
Ground Floor Flat 75 Highfield Avenue London NW11 9UB
Retrospective application for amendments involving changes to the shape of the roof of th…
17/0426/FUL
2016 Refused
80 Golders Manor Drive London NW11 9HT
Demolition of existing buildings and erection of 2 no. self-contained dwellinghouse.
16/7774/FUL
2016 Approved
8 Heathfield Gardens London NW11 9HX
Erection of outbuilding to rear of property following demolition of existing outbuilding
16/7124/192
2016 Approved
8 Heathfield Gardens London NW11 9HX
Single storey rear extension and alterations.
16/5402/HSE
2016 Refused
21 Western Avenue London NW11 9HE
Alterations to roof involving including partial removal of existing roof structures and e…
16/1380/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