12 Blanche Lane South Mimms Hertfordshire EN6 3PA
Refused on 16 August 2005
Council decision: Refuse Permission
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.
- Received
- 23 June 2005
- Council
- Hertsmere Borough Council
- Ward
- Shenley
- Agent
- Gordon Spence Partnership
- ReceivedReceived23 Jun
- ValidatedValidated23 Jun
- Consult.Consultation
- TargetTarget Date18 Aug
- DecidedDecided16 Aug
Decided in 54 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 Hertfordshire EN6 3PA. Hertsmere has handled 1,861 applications of this type. This one was decided in 54 days. 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
- Parish
- Shenley Parish Council
Planning application dates
- Date validated
- 23 June 2005
- Consultation start
- 28 June 2005
- Target decision date
- 18 August 2005
Applicant and agent
- Agent
- Gordon Spence Partnership
- Agent address
- 13 Station Approach Radlett Herts WD7 7AP
Planning decision
- Statutory period
- 56 days
Site constraints
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
- 20052 Nov
Erection of two storey rear extension together with conversion from two dwellings to one (Revised application…
ApprovedFull Planning PermissionRelatedTP/05/1331 - 200523 Jun
Erection of two storey rear extension together with conversion from two dwellings to one.
This applicationRefusedFullTP/05/0726
Source: Hertsmere
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Around this site
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For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Belectrix LtdElectrician0.1 mi
- Allprop Property Maintenance LtdBuildersBathrooms0.3 mi
- Green Ohms Electrical Services ltdElectrician0.4 mi
- Delieu Electrical Services LtdElectrician0.4 mi
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.