15 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3NY Data via plota.co.uk

26/0061/FUL - Full Planning Permission Awaiting decision

Proposal

Demolition of existing detached bungalow to facilitate construction of 3x two storey dwellings (2x semi-detached and 1x detached) to include hard and soft landscaping, front boundary works to include new crossover and erection of cycle and bin storage. Data via plota.co.uk

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View original council record ↗

Application progress

✓
Received
20 Jan 2026
✓
Validated
3 Feb 2026
✓
Consultation
10 Feb 2026
Decision
Awaiting decision

This application is under consideration - no decision has been issued yet. The consultation period closed on 3 Mar 2026.

Documents 26

Statements & assessments 7

PDF Ecology response Consultee replies · 23 Mar 2026 View ↗ PDF Acoustic assessment Supporting Documents · 3 Feb 2026 View ↗ PDF Air quality assessment Supporting Documents · 3 Feb 2026 View ↗ PDF Bng report Supporting Documents · 3 Feb 2026 View ↗ PDF Ecology report Supporting Documents · 3 Feb 2026 View ↗ PDF Transport statement Supporting Documents · 3 Feb 2026 View ↗ PDF Design and access and planning statement Supporting Documents · 3 Feb 2026 View ↗

Plans & drawings 11

PDF Bla/25/p/12 Calculations - volume and floorspace Drawing/Plans · 3 Feb 2026 View ↗ PDF Bla/25/p/10 Existing & proposed block plan Drawing/Plans · 3 Feb 2026 View ↗ PDF Bla/25/p/03 Existing first floor plan Drawing/Plans · 3 Feb 2026 View ↗ PDF Bla/25/p/02 Existing ground floor plan & elevations Drawing/Plans · 3 Feb 2026 View ↗ PDF Bla/25/p/04 Existing roof plan Drawing/Plans · 3 Feb 2026 View ↗ PDF Bla/25/p/09 Proposed elevations Drawing/Plans · 3 Feb 2026 View ↗ PDF Bla/25/p/06 Proposed first floor plan Drawing/Plans · 3 Feb 2026 View ↗ PDF Bla/25/p/05 Proposed ground floor plan Drawing/Plans · 3 Feb 2026 View ↗ PDF Bla/25/p/11 Proposed landscape amenity plans Drawing/Plans · 3 Feb 2026 View ↗ PDF Bla/25/p/07 Proposed roof plan Drawing/Plans · 3 Feb 2026 View ↗ PDF Bla/24/p/01 Site location plan and photos Drawing/Plans · 3 Feb 2026 View ↗

Application forms 1

PDF Applicationformredacted Application Form · 3 Feb 2026 View ↗

Consultation & comments 6

PDF Cil response Consultee Comment · 4 Mar 2026 View ↗ PDF Cil response Consultee Comment · 4 Mar 2026 View ↗ PDF Highways response Consultee replies · 26 Feb 2026 View ↗ PDF Growth and infrastructure response Consultee replies · 26 Feb 2026 View ↗ PDF Consultee comment submitted online Consultee Comment · 26 Feb 2026 View ↗ PDF Thames water response Consultee replies · 6 Feb 2026 View ↗

Other documents 1

PDF _form_1_cil_additional_information CIL · 3 Feb 2026 View ↗

All documents on the council site ↗

Other new applications on this street

62 - 64 Blanche Lane South Mimms Hertfordshire

Installation of solar panels on the roof. (Application for Listed Building Conse...

26/0935/LBC - 8 Jul 2026

The Old Vicarage 97 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3PE

T1 MAPLE. Reduce back to its previous reduction points. Remove approx the top 3 ...

26/0731/TRC - 28 May 2026

69 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3PA

Conversion of loft to habitable space with 2x hip to gable roof alterations, par...

26/0192/CLP - 13 Feb 2026

Nearby new applications

62 - 64 Blanche Lane South Mimms Hertfordshire

Installation of solar panels on the roof. (Application for Listed Building Conse...

26/0935/LBC - 8 Jul 2026

62 - 64 Blanche Lane South Mimms Hertfordshire

Installation of solar panels on the roof. (Associated Listed Building Consent 26...

26/0934/FUL - 8 Jul 2026

The Old Vicarage 97 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3PE

T1 MAPLE. Reduce back to its previous reduction points. Remove approx the top 3 ...

26/0731/TRC - 28 May 2026

7 St Giles Avenue South Mimms Potters Bar Hertfordshire EN6 3PZ

T1 ASH. Fell.

26/0662/TRC - 14 May 2026

Earls Farm Earls Lane South Mimms Potters Bar Hertfordshire EN6 3LT

Demolition of existing stables block & ancillary building and rebuild of replace...

26/0632/FUL - 11 May 2026

Important details

Council
Hertsmere
Application type
Full Planning Permission
Postcode
EN6 3NY
Received
20 Jan 2026
Validated
3 Feb 2026
Ward
Shenley
Parish
The Parish Council South Mimms And Ridge
Case officer
Show
Target decision
27 Aug 2026
Applicant
Show
Agent
Henry Planning LTD

Consultation & key dates

Alt. reference
PP-14633714
Neighbours
5 Feb 2026
Consultation
10 Feb 2026
Comments by
3 Mar 2026
Env. assessment
No

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
Demolition of existing single storey rear extension and partial demolition of garage. Con…
25/0214/CLP
2025 Approved
Demolition of existing single storey rear extension and partial demolition of garage. Con…
25/0214/CLP
2024 Approved
Construction of single storey side extension, and roof alterations to include 2x hip to g…
24/1507/CLP
2024 Approved
Construction of single storey rear extension. Depth: 8.00m, Height: 4.00m, Eaves: 2.90m.
24/1243/PD42
2024 Refused
Single storey rear extensions Depth: 8.00m, Height: 4.00m, Eaves: 3.00m.
24/1051/PD42
2024 Refused
Single storey rear extension, Depth: 8.0m, Height: 4.0m, Eaves: 2.9m.
24/0836/PD42
2024 Approved
Erection of outbuilding in rear garden. Certificate of lawful development (Proposed).
24/0570/CLP
2024 Refused
Construction of detached outbuilding to rear of existing dwelling. Certificate of Lawful…
24/0273/CLP
Within ~100m

Nearby activity

2025 Approved
9 - 11 Blanche Lane South Mimms Hertfordshire
Application for approval of details reserved by conditions 5 (Preliminary Asbestos Survey…
25/0636/DOC
2025 Approved
9 - 11 Blanche Lane South Mimms Hertfordshire
Application for approval of details reserved by conditions 5 (Preliminary Asbestos Survey…
25/0636/DOC
2025 Approved
11 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3NY
Conversion of loft to habitable space including rear dormer, 4x side roof lights, 3x fron…
25/0248/CLP
2025 Approved
11 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3NY
Conversion of loft to habitable space including rear dormer, 4x side roof lights, 3x fron…
25/0248/CLP
2024 Approved
9 - 11 Blanche Lane South Mimms Hertfordshire
Demolition of 2 x existing detached garages and rear conservatories and construction of p…
24/1637/FUL
2024 Refused
9 - 11 Blanche Lane South Mimms Hertfordshire
Demolition of existing 2 x garages and works to both properties to include construction o…
24/0513/FUL
2022 Approved
5 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3NY
Demolition of existing rear extension, part demolition of existing detached garage, and c…
22/1878/HSE
2022 Approved
5 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3NY
Demolition of existing rear extension, part demolition of existing detached garage, and c…
22/1878/HSE
2022 Refused
5 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3NY
Construction of a single storey rear extension. Depth: 6m, Height: 2.93m, Eaves: 2.82m.
22/1206/PD42
2022 Refused
5 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3NY
Construction of a single storey rear extension. Depth: 6m, Height: 2.93m, Eaves: 2.82m.
22/1206/PD42
2022 Withdrawn
5 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3NY
Part single/part two storey rear extension and conversion of garage to habitable room.
22/0656/HSE
2022 Withdrawn
5 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3NY
Part single/part two storey rear extension and conversion of garage to habitable room.
22/0656/HSE
2016 Approved
7 Blanche Lane South Mimms Hertfordshire EN6 3NY
Part single, part two-storey rear extension
16/1627/HSE
2016 Approved
7 Blanche Lane South Mimms Hertfordshire EN6 3NY
Part single, part two-storey rear extension
16/1627/HSE
2016 Approved
7 Blanche Lane South Mimms Hertfordshire EN6 3NY
Conversion of loft to habitable room with insertion of front roof light and rear dormer…
16/0863/CLP
2016 Approved
7 Blanche Lane South Mimms Hertfordshire EN6 3NY
Conversion of loft to habitable room with insertion of front roof light and rear dormer…
16/0863/CLP
2016 Approved
7 Blanche Lane South Mimms Hertfordshire EN6 3NY
Part single part two storey rear extension to include demolition of existing garage and e…
16/0862/HSE
2016 Approved
7 Blanche Lane South Mimms Hertfordshire EN6 3NY
Part single part two storey rear extension to include demolition of existing garage and e…
16/0862/HSE
Hertsmere
Planning Authority Score
3.3/10
Poor
#225 of 296 councils
Relevant to this application:
Householder decisions

Hertsmere is slower than most councils at deciding householder applications, ranking #243 out of 296. 55% of applications have the time limit extended, above the 41% national average. Householder applications are slightly more likely to be approved here (94%) than the national average (90%).

Slower than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Hertsmere decision performance
Based on MHCLG data, the year to March 2026
93%
Overall approval rate
Above avg (87%) #57 of 296
94%
Householder approved
Above avg (90%) #108 of 296
49%
Decided in 8 weeks
Below avg (63%) #243 of 296
55%
Extended time limit
Above avg (41%) #249 of 296
84%
Minor dwellings approved
102 decided (1-9 homes)
75%
Major dwellings approved
8 decided (10+ homes)
89%
Change of use approved
27 decided
742
Total decisions
55 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings