42A Totteridge Common London N20 8ND Data via plota.co.uk

26/2554/HSE - Householder Application Approved
Extensions & alterations

Proposal

Single storey rear conservatory extension. Extension to existing raised terrace. (amended description) Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
7 Jul 2026
✓
Validated
9 Jul 2026
✓
Consultation
30 Jul 2026
✓
Approved
3 Sept 2026

Approved on 3 Sept 2026 · Delegated Decision · Last checked 4 Sept 2026

Documents 15

Decision & officer reports 2

PDF DELEGATED REPORT Report · 4 Sept 2026 View ↗ PDF DN: APPROVE HSE WITH CONDS Decision Notice · 3 Sept 2026 View ↗

Statements & assessments 1

PDF PLANNING STATEMENT Planning statement · 9 Jul 2026 View ↗

Plans & drawings 6

PDF EXISTING/PROPOSED ELEVATIONS WITH SITE LEVELS Additional plans · 14 Jul 2026 View ↗ PDF THE LOCATION PLAN Revised Drawing · 14 Jul 2026 View ↗ PDF EXISTING GROUND FLOOR Revised Drawing · 14 Jul 2026 View ↗ PDF EXISTING REAR/SIDE Drawing · 7 Jul 2026 View ↗ PDF PROPOSED GROUND FLOOR/ROOF Drawing · 7 Jul 2026 View ↗ PDF PROPOSED SIDE/REAR Drawing · 7 Jul 2026 View ↗

Application forms 2

PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application Form · 7 Jul 2026 View ↗ PDF COMMUNITY INFRASTRUCTURE LEVY - COMPLETED FORM CIL Document · 7 Jul 2026 View ↗

Other documents 4

PDF ALUMINIUM SPECIFICATION Application Document · 5 Aug 2026 View ↗ IMG SITE NOTICE Photo · 4 Aug 2026 View ↗ IMG SITE NOTICE Photo · 4 Aug 2026 View ↗ IMG SITE NOTICE Photo · 4 Aug 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.
Totteridge conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
2 Article 4 directions
Article 4 Agricultural Land Restriction Area 1 · 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 Named permitted development rights are withdrawn here.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.
Archaeological priority area
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
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 ↗
Agricultural land, grade 3a
Best and most versatile land (grades 1, 2 and 3a). Predicted from the national soil map. The older provisional map agrees.
Where development of farmland is needed, policy prefers poorer land over the best and most versatile (grades 1, 2 and 3a). Three sources: Natural England's post-1988 field surveys, which are definitive where they exist; the Defra predictive map for England (2025) and the Welsh Government predictive map, modelled from the soil map with 3a and 3b split; and the 1970s provisional map, which planners and other services still show, coarser and with grade 3 undivided. Where the provisional and predicted grades disagree, treat the predicted grade as the current estimate and expect an application to carry its own survey.
Habitat network: Network Enhancement Zone 1
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Local nature reserve 392 m away: Totteridge Fields.
Not affected
Outside flood zones 2 and 3 · No listed building at the site · 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

27 Aug 2026Pending

Willow House 38 Totteridge Common London N20 8NE

Submission of details of condition 7 (Stage 1 - written scheme of investigation)...

26/3167/CON
5 Aug 2026Pending

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27 Jul 2026Pending

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25 Jun 2026Decided

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Nearby new applications

27 Aug 2026Pending

Willow House 38 Totteridge Common London N20 8NE

Submission of details of condition 7 (Stage 1 - written scheme of investigation)...

26/3167/CON
5 Aug 2026Pending

Totteridge Park Farm 32 Totteridge Common London N20 8NE

Demolition and replacement of the existing outhouses with installation of solar ...

26/2890/HSE
17 Jun 2026Approved

Ellern Mede 31 Totteridge Common London N20 8LS

Change of use to single dwelling house (Under Class C3) together with: Demolitio...

26/2288/LBC
25 Jun 2026Decided

West End House 56 Totteridge Common London N20 8LZ

1 x Large Mature weeping Willow Tree - Whole crown reduction to 3m above ground ...

TCP/0360/26

Important details

Council
Barnet
Application type
Householder Application
Postcode
N20 8ND
Received
7 Jul 2026
Validated
9 Jul 2026
Ward
Totteridge & Woodside
Case officer
Show
Target decision
3 Sept 2026
Decision
Approve subject to conditions
Decision date
3 Sept 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Stuart Henley & Partners

How this decision compares

Decided in 56 days from validation, about the council's usual 53 days. 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 4 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14814270
Site or press notice
30 Jul 2026

Historical activity at this location

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

This property

Previous applications at this address

2025 Approved
Conservatory extension to rear
25/4164/192
Within ~100m

Nearby activity

2025
The Coach House 46A Totteridge Common London N20 8ND
1 x Horse Chestnut (applicants ref. T1) - Fell to ground level.
TCP/0634/25
2021 Approved
45 Totteridge Common London N20 8LU
Demolition of the existing buildings onsite and erection erection of a two storey dwellin…
21/3989/FUL
2020 Refused
46 Totteridge Common London N20 8ND
1 x Oak (applicant's ref. T1) - Reduce the canopy up to 2m from branch tips, except for t…
TPP/0695/20
2020 Approved
46 Totteridge Common London N20 8ND
Several dead Elm (applicant's ref. G1) - Fell
TCF/0772/20
2020 Approved
46 Totteridge Common London N20 8ND
1 x dead Beech (applicant's ref. T3) - Fell. Standing in area A1 of Tree Preservation Ord…
TPF/0773/20
2020 Approved
40 Totteridge Common London N20 8ND
1 x Sycamore (applicant's ref. T1) - Pollard back to previous points. T1 of Tree Preserva…
TPP/0035/20
2020 Approved
46 Totteridge Common London N20 8ND
1 x Ash (applicant's ref. T1) - Fell. Standing in area A1 of Tree Preservation Order
TPF/0065/20
2019 Approved
Cedar Ridge 44 Totteridge Common London N20 8ND
1 x Ash (dead) - Remove
TCF/0482/19
2019 Approved
40 Totteridge Common London N20 8ND
Excavation and extension of existing lower ground level below garage building rearwards…
19/0497/HSE
2019 Approved
Grassed Area In Front Of 40 - Cedar Ridge 44 Totteridge Common London N20 8ND
1 x Cedar (applicant's ref. T1) - Cut back the lateral branches to the south west over th…
TPP/0086/19
2018 Approved
46 Totteridge Common London N20 8ND
Application to discharge condition 2 of TPM/0254/18 (notification of commencement of appr…
TCO/0496/18
2018 Approved
46 Totteridge Common London N20 8ND
1 x Oak (applicant's ref. T3) - Fell. Standing in area A1 of Tree Preservation Order1 x A…
TPM/0254/18
2018 Approved
46 Totteridge Common London N20 8ND
Approx. 20 x Leylandii (applicant's ref. G1) - Reduce to same height as rest of Leylandii…
TCM/0267/18
2017 Approved
48 Totteridge Common London N20 8ND
3 x Oak - remove deadwood. Standing in group G4 of Tree Preservation Order
TPP/0931/17
2017 Approved
46 Totteridge Common London N20 8ND
1 x Ash (applicant's ref. T18) - Crown reduction 2 metres overextended limbs, Lateral red…
TPM/0102/17
2017 Approved
46 Totteridge Common London N20 8ND
3 x Lime (applicant's ref. T1, T2, T3) - Crown lift to 3m and a maximum of 20% crown redu…
TCM/0140/17
2017 Approved
44 / 46 Totteridge Common London N20 8ND
Group of Lawsons Cypress (applicant's ref. G2) - Lateral reduction of branches overhangin…
TCM/0141/17
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