40 Galley Lane Barnet EN5 4AJ Data via plota.co.uk

26/3445/PNH - Prior Notification (Householder) Pending Consideration
Extensions & alterations

Proposal

Single storey rear extension with a maximum depth of 6.00m, a maximum height of 2.95m and an eaves height of 2.95m. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
22 Sept 2026
✓
Validated
25 Sept 2026
✓
Consultation
25 Sept 2026
Decision
Expected by 6 Nov 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 8 Nov 2026 and 19 Nov 2026, from Barnet's recent extensions.

Comments are open until 18 Oct 2026

Comment on this application ↗

Documents 8

Statements & assessments 2

PDF FLOOD RISK ASSESSMENT Application Document · 22 Sept 2026 View ↗ PDF FLOOD RISK ASSESSMENT Application Document · 22 Sept 2026 View ↗

Plans & drawings 5

PDF EXISTING / PROPOSED SIDE ELEVATIONS Drawing · 25 Sept 2026 View ↗ PDF BLOCK PLAN Block plan · 25 Sept 2026 View ↗ PDF THE LOCATION PLAN Site Location Plan · 22 Sept 2026 View ↗ PDF EXISTING AND PROPOSED FRONT/REAR ELEVATIONS Drawing · 22 Sept 2026 View ↗ PDF EXISTING / PROPOSED FLOOR PLANS Drawing · 22 Sept 2026 View ↗

Application forms 1

PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application Form · 22 Sept 2026 View ↗

All documents on the council site ↗

Site constraints 8

Green belt: London
Inappropriate development needs very special circumstances.
Green belt policy allows a short list of exceptions, such as limited extensions and replacement buildings. Anything else needs very special circumstances that clearly outweigh the harm. Some green belt land can count as grey belt, where it does not strongly serve the green belt's purposes. The council decides this in its green belt assessment or on each application, so we do not mark it here.
Read the government guidance ↗
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 Named permitted development rights are withdrawn here.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.
In flood zones plus climate change
Inside the extent flood zones 2 and 3 could reach with climate change: the Central allowance for the 2080s on rivers, the Upper End allowance for sea level rise to 2125. From rivers. Defences are not counted.
The Environment Agency flood map for planning. Councils use it to decide when a flood risk assessment and the sequential test are needed. It is indicative and does not show whether a particular property will flood.
Flood map ↗
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 ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Inside the Barnet built-up area; Public transport access: PTAL 1a (very poor), TfL 2023, for the 100 m square; Natural England's Provisional ALC map (1:250,000, 1970s) had this area as grade 3, but it predates the buildings here and the current map does not class it as farmland.
Not affected
Outside flood zones 2 and 3 · No listed building at the site · 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.

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Important details

Council
Barnet
Application type
Prior Notification (Householder)
Postcode
EN5 4AJ
Received
22 Sept 2026
Validated
25 Sept 2026
Ward
High Barnet
Case officer
Show
Target decision
6 Nov 2026
Applicant
Show
Agent
Martin Ballard

Decision outlook

Day 14 of the 56-day target. Barnet usually decides extensions by day 52.

Day 1442 days to the 56-day target
87%decided within 8 weeks
75%approved
1,752decided 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.

2 neighbours consulted · Last counted 7 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15236677
Planning Portal ref
PP-15236677
Neighbours
25 Sept 2026
Consultation
25 Sept 2026
Comments by
18 Oct 2026
Statutory expiry
6 Nov 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
37 Galley Lane Barnet EN5 4AR
Single storey rear extension. Roof extension involving rear dormer window, 4no. front fac…
24/4982/192
2024
37 Galley Lane Barnet EN5 4AR
Single Storey Rear Extension with a depth of 5.5m, a mximum height of 3m and an eaves hei…
24/4326/PNH
2023 Approved
3 Galley Lane Barnet EN5 4AR
Two-storey side infill extensions, single-storey rear extension. New front porch extensio…
23/5403/HSE
2022 Approved
36 Galley Lane Barnet EN5 4AJ
Two storey rear extension
22/4332/192
2022 Approved
22 Galley Lane Barnet EN5 4AJ
Single storey rear infill extension and replacement of existing pitch roof with a flat ro…
22/2337/HSE
2022 Approved
36 Galley Lane Barnet EN5 4AJ
Two storey side extension, two storey front extension, front roof extension and alteratio…
22/0408/HSE
2021 Approved
16 Galley Lane Barnet EN5 4AJ
Installation of air heat exchangers to the rear of the property (retrospective)
21/3523/HSE
2021 Refused
36 Galley Lane Barnet EN5 4AJ
A single storey rear extension measuring 8.00 metres in depth from the original rear wall…
21/0380/PNH
2020 Refused
36 Galley Lane Barnet EN5 4AJ
single storey rear extension measuring 8.00 metres in depth from the original rear wall w…
20/6130/PNH
2019 Refused
Leahurst Nursery 36A Galley Lane Barnet EN5 4AJ
Erection of an agricultural building for use as machinery storage, potting shed, compost…
19/6403/FUL
2019 Approved
16 Galley Lane Barnet EN5 4AJ
New front porch. Single storey rear extension. Conversion of garage to habitable room inc…
19/4415/192
2019 Refused
16 Galley Lane Barnet EN5 4AJ
New front porch. Single storey rear extension. Conversion of garage to habitable room inc…
19/2630/192
2019 Refused
Leahurst Nursery 36A Galley Lane Barnet EN5 4AJ
Conversion of garage to single storey dwellinghouse. Associated parking, amenity space, r…
19/2716/FUL
2018 Withdrawn
16 Galley Lane Barnet EN5 4AJ
Demolition of the existing dwelling and erection of new two storey dwelling with rooms in…
18/6615/FUL
2018 Withdrawn
16 Galley Lane Barnet EN5 4AJ
Demolition of the existing dwelling and erection of new two storey dwelling with rooms in…
18/6615/HSE
2018 Refused
18 Galley Lane Barnet EN5 4AJ
Single storey side extension following demolition of existing side garage and two storey…
18/5074/192
2018 Withdrawn
18 Galley Lane Barnet EN5 4AJ
Single storey rear extension. Erection of front porch
18/5082/HSE
2017 Approved
18 Galley Lane Barnet EN5 4AJ
Single storey side extension following demolition of existing side garage, part two store…
17/6935/192
2017 Approved
Leahurst Nursery 36A Galley Lane Barnet EN5 4AJ
Relocation of a nursery potting shed and store
17/5066/FUL
2017 Refused
Leahurst Nursery 36A Galley Lane Barnet EN5 4AJ
Stationing of a mobile home for a temporary period of three years
17/5069/FUL
2017 Refused
18 Galley Lane Barnet EN5 4AJ
Part single, part two storey rear extension , single storey side extension,two storey fro…
17/5450/HSE
2017 Withdrawn
18 Galley Lane Barnet EN5 4AJ
Part single, part two storey rear and side extension, two storey front extension includin…
17/4048/HSE
2016 Approved
36 Galley Lane Barnet EN5 4AJ
New hardstanding to front garden area and construction of ramped access to property inclu…
16/6619/HSE
2016 Approved
38 Galley Lane Barnet EN5 4AJ
Roof extension involving front/side overhang additions, 2 no. rear dormers, raising of ri…
16/3264/HSE
2024 Approved
Elm Farm House 2 Galley Lane Barnet EN5 4AJ
Submission of details of condition 22 (Contaminated Land) pursuant to planning permission…
24/4859/CON
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

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use