Skip to content

12 Blanche Lane South Mimms Potters Bar EN6 3PA

TP/05/1331Full Planning PermissionApproved
Full

Approved on 20 December 2005

Council decision: Grant PermissionDelegated (officer decision)

Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Erection of two storey rear extension together with conversion from two dwellings to one (Revised application following refusal of TP/05/0726).

Received
2 November 2005
Decision level
Delegated (officer decision)
Ward
Shenley
  1. Received2 Nov
  2. Validated2 Nov
  3. Consult.
  4. Target28 Dec
  5. Decided20 Dec

Decided in 48 days (council typically 56)

About this application

This is a full planning application for a two storey rear extension at 12 Blanche Lane South Mimms Potters Bar EN6 3PA. Hertsmere has handled 1,861 applications of this type. This one was decided in 48 days, 8 days quicker than Hertsmere's typical decision time. The site is in the South Mimms conservation area, with 1 listed building nearby. There are no previous applications recorded at this address. In the past year there have been 124 applications across Shenley. We hold 3,353 applications in total for the EN6 postcode area.

90% of full applications at Hertsmere Borough Council were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Postcode
EN6 3PA
Application type
Full Planning Permission
Scale / size
Small

Planning application dates

Date validated
2 November 2005
Consultation expiry
10 November 2005
Consultation start
3 November 2005
Neighbour consultation start
20 December 2005
Target decision date
28 December 2005

Applicant and agent

Agent
Gordon Spence Parnership
Agent address
13 Station Approach Radlett Hertfordshire WD7 7AP

Planning decision

Statutory period
56 days

Publicity

Last advertised
10 November 2005

Additional information

Comments
0
Documents
9

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: South Mimms
  • Green belt: Hertsmere
  • Flood zone 1: Low probability (rivers and sea)

Not published by this council, so not checked: Article 4 directions. Ask the council if these matter.

Possibly incomplete for this council: tree preservation orders.

Also checked, none recorded (20)

flood storage areas, listed buildings, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Associated applications

  1. 2005
    2 Nov

    Erection of two storey rear extension together with conversion from two dwellings to one (Revised application…

    This applicationApprovedFullTP/05/1331
  2. 2005
    23 Jun

    Erection of two storey rear extension together with conversion from two dwellings to one.

    RefusedFull Planning PermissionPart ofTP/05/0726

Source: Hertsmere

Track this application

Get email alerts when there is a planning decision or status change.

Get email alerts near EN6

New planning applications delivered to your inbox daily.

Around this site

Discuss this application on r/PlanningPermissionUK

For applicants and trades

Planning something similar?

See what the council approved and refused for two-storey and first-floor extensions on your street. Pick your home and get the evidence before you pay for drawings.

See what gets approved on your streetBuying this property? Report on this address