49 Haslemere Avenue Barnet EN4 8EU Data via plota.co.uk

26/1532/HSE - Householder Application Approved
Extensions & alterations

Proposal

Single storey rear extension following demolition of the existing lean-to. New front porch Data via plota.co.uk

Track application Save this application and get an email when its status or decision changes. Alerts nearby Get email alerts for new planning applications near this address.
View original council record ↗Last checked

Application progress

✓
Received
24 Apr 2026
✓
Consultation
30 Apr 2026
✓
Approved
26 Jun 2026

Approved on 26 Jun 2026 · Delegated Decision · Last checked 6 Jul 2026

Documents 8

Decision & officer reports 1

PDF DN: APPROVE HSE WITH CONDS Decision Notice · 26 Jun 2026 View ↗

Plans & drawings 4

PDF PROPOSED PLANS AND ELEVATIONS Revised Drawing · 26 Jun 2026 View ↗ PDF EXISTING DRAWINGS Revised Drawing · 26 Jun 2026 View ↗ PDF THE LOCATION PLAN Site Location Plan · 23 Apr 2026 View ↗ PDF BLOCK PLAN OF THE SITE Block plan · 23 Apr 2026 View ↗

Application forms 2

PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application Form · 23 Apr 2026 View ↗ PDF COMMUNITY INFRASTRUCTURE LEVY - COMPLETED FORM CIL Document · 23 Apr 2026 View ↗

Other documents 1

PDF SITE NOTICE Photo · 21 May 2026 View ↗

All documents on the council site ↗

Site constraints 3

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 Named permitted development rights are withdrawn here.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.
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.

Work with planning data?

Every application in Barnet - and every UK council - as a live feed, an API, or a bulk CSV export.

About Plota's data service

Other new applications on this street

3 Jul 2026Approved

32 Haslemere Avenue Barnet EN4 8EZ

Roof extension involving hip to gable, rear dormer window, 3no. front-facing roo...

26/2512/192
26 Mar 2026Approved

46 Haslemere Avenue Barnet EN4 8EZ

Single storey rear extension with extended raised patio area with glass balustra...

26/1165/HSE
20 Mar 2026Approved

42 Haslemere Avenue Barnet EN4 8EZ

Variation of condition 1 (Approved plans) of planning permission reference 25/48...

26/1072/S73

Nearby new applications

10 Sept 2026Pending

25 Grange Avenue Barnet EN4 8NJ

Part lower ground, part single storey and part two storey side and rear extensio...

26/3309/HSE
3 Sept 2026Pending

104B Russell Lane London N20 0AS

Single storey rear extension with alterations to the existing balcony

26/3228/FUL
28 Aug 2026Pending

117 Russell Lane London N20 0AZ

2no. single storey rear extensions following demolition of the existing garage a...

26/3177/HSE
25 Aug 2026Pending

78 Russell Lane London N20 0AP

2no. Single storey rear extension with a proposed depth of 7.00 metres, maximum ...

26/3133/PNH
10 Aug 2026Pending

1 Weirdale Avenue London N20 0AN

Single storey rear extension following demolition of the existing conservatory. ...

26/2952/HSE
31 Jul 2026Approved

20 Derwent Avenue Barnet EN4 8LX

Roof extension involving rear dormer window with juliette balcony

26/2836/192

Important details

Council
Barnet
Application type
Householder Application
Postcode
EN4 8EU
Received
24 Apr 2026
Validated
24 Apr 2026
Ward
Brunswick Park
Case officer
Show
Target decision
19 Jun 2026
Decision
Approve subject to conditions
Decision date
26 Jun 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Clark Designs Ltd

How this decision compares

Decided in 63 days from validation, 10 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 →

Consultation & key dates

Alt. reference
PP-14870926
Site or press notice
30 Apr 2026

Historical activity at this location

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

Within ~100m

Nearby activity

2024 Approved
54 Haslemere Avenue Barnet EN4 8EU
Single storey rear extension with 5no. rooflights with raised patio area and access steps
24/4557/HSE
2024 Approved
42 Gallants Farm Road Barnet EN4 8ES
Single storey side and rear extension with 4no rooflights, following demolition of the ex…
24/2138/HSE
2023 Approved
50 Haslemere Avenue Barnet EN4 8EZ
Single storey rear extension with 2no. rooflights and linking into existing side extensio…
23/5177/HSE
2023 Approved
50 Haslemere Avenue Barnet EN4 8EZ
Roof extension involving hip to gable, rear dormer with juliette balcony and 3no. front f…
23/4966/192
2022 Refused
28 Gallants Farm Road Barnet EN4 8ET
Part single, part two storey side and rear extension with new decking area following demo…
22/0784/HSE
2021 Approved
39 Haslemere Avenue Barnet EN4 8EY
Single storey side and rear extension. New front access steps.
21/2231/HSE
2021 Approved
40 Gallants Farm Road Barnet EN4 8ES
Single storey rear and two storey side extension
21/1828/HSE
2021 Approved
39 Haslemere Avenue Barnet EN4 8EY
Roof extension involving hip to gable, rear dormer window and 2no front facing rooflights
21/2220/192
2021 Approved
81 Derwent Avenue Barnet EN4 8LY
Single storey side rear extension following demolition of the existing garage, utility ro…
21/0229/HSE
2020 Approved
82 Derwent Avenue Barnet EN4 8LZ
Single storey rear extension and rear patio, and demolition of existing rear garage
20/2773/HSE
2020 Approved
82 Derwent Avenue Barnet EN4 8LZ
Roof extension involving rear dormer windows, juliette balcony and 2no front facing roofl…
20/2498/192
2020 Refused
27 Haslemere Avenue Barnet EN4 8EY
Roof extension involving hip to gable, rear dormer window with juliette balcony, 3no fron…
20/1807/192
2020 Approved
81 Derwent Avenue Barnet EN4 8LY
Single storey rear extension with a proposed depth of 6.00 metres from original rear wall…
20/1419/PNH
2019 Approved
65 Derwent Avenue Barnet EN4 8LY
Conversion of existing garage into habitable room, insertion of window to replace the exi…
19/5366/HSE
2019 Approved
76 Derwent Avenue Barnet EN4 8LZ
Single storey rear extension
19/5306/HSE
2019 Approved
81 Derwent Avenue Barnet EN4 8LY
Roof extension involving hip to gable, rear dormer window and 2no front facing rooflights
19/6048/192
2019 Approved
65 Derwent Avenue Barnet EN4 8LY
Erection of a rear outbuilding
19/5365/192
2019 Withdrawn
56 Haslemere Avenue Barnet EN4 8EU
Roof extension involving hip to gable, rear dormer window
19/3307/HSE
2019 Approved
56 Haslemere Avenue Barnet EN4 8EU
Single storey rear extension with new decking area and access steps
19/1481/HSE
2019 Approved
64 Haslemere Avenue Barnet EN4 8EU
Continued use of a detached outbuilding in rear garden being used as a cat hotel (Sui gen…
19/0686/FUL
2017 Approved
110 Derwent Avenue Barnet EN4 8LZ
Single storey rear extension
17/0646/192
2016 Approved
64 Haslemere Avenue Barnet EN4 8EU
Erection of a detached outbuilding in rear garden to be used as a cat hotel (Sui generis)
16/5099/FUL
2016 Refused
38 Gallants Farm Road Barnet EN4 8ES
Roof extension involving rear dormer window and new window to side elevation to facilitat…
16/7235/192
2016 Approved
80 Derwent Avenue Barnet EN4 8LZ
Single storey rear extension with a proposed maximum depth of 4 metres from original rear…
16/5146/PNH
2016 Approved
80 Derwent Avenue Barnet EN4 8LZ
Roof extension involving a rear dormer and 2 additional rooflights to the front elevation…
16/5081/192
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