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 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 Named permitted development rights are withdrawn here.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.

Sales history 3

Last sold for £930,000 in June 2021. Semi-detached house, freehold.

30 June 2021£930,000
3 August 2017£999,950Recorded as a transfer outside a standard sale
8 March 1996£142,500

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area157 m² (1,690 sq ft)
Energy ratingD (68 out of 100), could reach B
PropertySemi-detached house, 9 habitable rooms
Built1930 to 1949
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in April 2023, the latest held for this property. The building may have changed since. View the certificate

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Other new applications on this street

1 Sept 2026Pending

36 Western Avenue London NW11 9HJ

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

26/2957/HSE
10 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
1 May 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

27 Oct 2026Pending

7 Brookside Road London NW11 9ND

Single storey side extension

26/3888/192
26 Oct 2026Pending

9 St Marys Road London NW11 9UE

Rear raised platform with associated access steps, guard rails and privacy scree...

26/3861/HSE
21 Oct 2026Pending

104 Leeside Crescent London NW11 0JY

Roof extension involving side and rear dormer windows

26/3820/192
21 Oct 2026Pending

66 Woodlands London NW11 9QU

Variation of condition 1 (Approved plans) pursuant to planning permission 26/076...

26/3747/S73
16 Oct 2026Pending

9 Mayfield Gardens London NW4 2PY

Part single, part two storey rear extension. Single side extension. New front po...

26/3754/HSE
16 Oct 2026Pending

9 Mayfield Gardens London NW4 2PY

Part single part two storey side and rear extension. New front porch, Two storey...

26/3760/HSE

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, 16 days slower than Barnet's median of 52 for extensions. Approved, as 75% of extensions here are.

87%decided within 8 weeks
75%approved
1,904decided 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
Planning Portal ref
PP-14968823
Comments by
25 Jun 2026
Site or press notice
4 Jun 2026
Statutory expiry
23 Jul 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

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

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.