27 Mayhill Road Barnet EN5 2NZ Data via plota.co.uk

26/3580/192 - Proposed Lawful Development Certificate Pending Consideration
Extensions & alterations

Proposal

Single storey rear extension Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
5 Oct 2026
Decision
Expected by 30 Nov 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 18 Nov 2026 and 29 Nov 2026, from Barnet's recent extensions.

Documents 10

Plans & drawings 8

PDF THE LOCATION PLAN Site Location Plan · 2 Oct 2026 View ↗ PDF EXISTING/PROPOSED SIDE Drawing · 2 Oct 2026 View ↗ PDF EXISTING/PROPOSED ROOF Drawing · 2 Oct 2026 View ↗ PDF EXISTING/PROPOSED SIDE Drawing · 2 Oct 2026 View ↗ PDF EXISTING/PROPOSED REAR Drawing · 2 Oct 2026 View ↗ PDF EXISTING/PROPOSED FIRST FLOOR Drawing · 2 Oct 2026 View ↗ PDF EXISTING/PROPOSED FRONT Drawing · 2 Oct 2026 View ↗ PDF EXISTING/PROPOSED GROUND FLOOR Drawing · 2 Oct 2026 View ↗

Application forms 2

PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application Form · 2 Oct 2026 View ↗ PDF COMMUNITY INFRASTRUCTURE LEVY - COMPLETED FORM CIL Document · 2 Oct 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 Named permitted development rights are withdrawn here.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
Inside the Barnet built-up area; Public transport access: PTAL 1b (very poor), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building 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.

Building

Floor area76 m² (818 sq ft)
Energy ratingD (62 out of 100), could reach C
PropertySemi-detached house, 5 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, no insulation (assumed)

From the energy performance certificate lodged in March 2026, the latest held for this property. The building may have changed since. View the certificate

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Nearby new applications

5 Oct 2026Pending

25 Alan Drive Barnet EN5 2PP

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Roof extension with side and rear dormer windows and 2no. front facing rooflight...

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83 Mays Lane Barnet EN5 2DX

Erection of a rear outbuilding

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Important details

Council
Barnet
Application type
Proposed Lawful Development Certificate
Postcode
EN5 2NZ
Received
5 Oct 2026
Validated
5 Oct 2026
Ward
Underhill
Case officer
Show
Target decision
30 Nov 2026
Applicant
Show
Agent
Fidler Associates Ltd

Decision outlook

Day 4 of the 56-day target. Barnet usually decides extensions by day 52.

Day 452 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.

Last counted 6 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15263406
Planning Portal ref
PP-15263406
Statutory expiry
30 Nov 2026

Historical activity at this location

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

Within ~100m

Nearby activity

2025 Approved
14 Dollis Brook Walk Barnet EN5 2PU
Single storey side and rear extension with 2no. rooflights following demolition of the ex…
25/4347/HSE
2024 Approved
12 Northbrook Road Barnet EN5 2PB
Single storey rear extension following demolition of the existing shed. New front porch…
24/1977/HSE
2024 Approved
35 Alan Drive Barnet EN5 2PP
Single storey rear extension with 2no. rooflights following demolition of the existing ex…
24/0342/HSE
2024 Approved
35 Alan Drive Barnet EN5 2PP
Roof extension involving hip to gable, rear dormer window, 2no. front facing rooflights a…
24/0341/192
2023 Approved
12 Northbrook Road Barnet EN5 2PB
Single storey rear extension following demolition of the existing shed. New front porch
23/2771/HSE
2023 Approved
76 Mayhill Road Barnet EN5 2NP
Proposed raised rear patio to garden for wheelchair use with associated handrails (AMENDE…
23/1963/HSE
2022 Approved
82 Mayhill Road Barnet EN5 2NP
Part single, part two storey side extension and single storey rear and front extensions
22/3382/HSE
2022 Approved
82 Mayhill Road Barnet EN5 2NP
Part single, part two storey side and rear extension.
22/1218/HSE
2021 Approved
82 Mayhill Road Barnet EN5 2NP
Roof extension involving rear dormer window with Juliette balcony, 4no front facing roofl…
21/6523/192
2021 Refused
31 Alan Drive Barnet EN5 2PP
Single storey rear extension with a proposed depth of 3 metres from the original rear wal…
21/6790/PNH
2020 Approved
76 Mayhill Road Barnet EN5 2NP
Proposed access ramp with hand rails to front garden
20/2053/HSE
2019 Approved
14 Dollis Brook Walk Barnet EN5 2PU
Demolition of existing conservatory. Single storey ground floor front extension to create…
19/4884/HSE
2019 Approved
12 Dollis Brook Walk Barnet EN5 2PU
New front porch including relocation of front entrance door to side elevation
19/2582/HSE
2019 Approved
13 Dollis Brook Walk Barnet EN5 2PU
New front porch including relocation of front entrance door to side elevation
19/2584/HSE
2019 Refused
12 Dollis Brook Walk Barnet EN5 2PU
New front porch
19/2415/192
2019 Approved
55 Alan Drive Barnet EN5 2PW
Single storey rear extension with new raised terrace area
19/0474/HSE
2018 Approved
37 Alan Drive Barnet EN5 2PP
Single storey rear extension
18/7427/HSE
2019 Approved
14 Dollis Brook Walk Barnet EN5 2PU
Replacement of first floor rear timber frame casement window with 2no UPVC single hung wi…
19/0788/192
2018 Approved
31 Alan Drive Barnet EN5 2PP
Single storey rear extension. Roof extension involving rear dormer window
18/3657/HSE
2018 Approved
Land Bound By Valley View, Leeside, Northbrook Road And Mayhill Road
Demolition of existing garages. Erection of 4no detached single storey self-contained res…
18/0546/FUL
2017 Approved
23 Valley View Barnet EN5 2NY
Single storey rear extension with a proposed depth of 4.3 metres from original rear wall…
17/1058/PNH
2016 Approved
53 Alan Drive Barnet EN5 2PW
Single storey rear extension
16/3166/HSE
2016 Approved
84 Mayhill Road Barnet EN5 2NP
Single storey rear extension
16/3043/HSE
2016 Refused
53 Alan Drive Barnet EN5 2PW
Single storey rear extension with a proposed depth of 4.5 metres from original rear wall…
16/2688/PNH
2016 Approved
53 Alan Drive Barnet EN5 2PW
Roof extension involving rear dormer window with 3no rooflights to front elevation to fac…
16/1817/192
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

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.