28 Blackhorse Lane South Mimms Hertfordshire EN6 3PS
Approved on 20 January 2021
Council decision: Grant PermissionDelegated (officer decision)
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
Conversion of loft to habitable room to include rear dormer with Juliet balcony, new side window, and 2 front roof lights.
- Received
- 30 November 2020
- Decision level
- Delegated (officer decision)
- Public comments
- 1
- Council
- Hertsmere Borough Council
- Ward
- Shenley
- ReceivedReceived30 Nov
- ValidatedValidated4 Dec
- Consult.Consultation11 Feb
- TargetTarget Date29 Jan
- DecidedDecided20 Jan
Decided in 47 days (council typically 56)
About this application
This is a full planning application for a dormer extension at 28 Blackhorse Lane South Mimms Hertfordshire EN6 3PS. Hertsmere has handled 1,861 applications of this type. This one was decided in 51 days, 5 days quicker than Hertsmere's typical decision time. The site is in 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 3,350 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.See what's approved near your address
Application details
- Postcode
- EN6 3PS
- Application type
- Full Planning Permission
- Scale / size
- Small
- Parish
- South Mimms Parish Council
Planning application dates
- Date validated
- 4 December 2020
- Consultation expiry
- 11 February 2021
- Consultation start
- 21 January 2021
- Consultation end
- 11 February 2021
- Neighbour consultation start
- 21 January 2021
- Neighbour consultation end
- 26 December 2020
- Last date for comments
- 11 February 2021
- Target decision date
- 29 January 2021
- Decision issued
- 21 January 2021
- Permission expires
- 21 January 2024
Applicant and agent
- Agent
- PBARC
- Architect profile
- PBARC LTD
- Agent address
- 25 Albany Gate Potters Bar EN6 1DN
Planning decision
- Statutory period
- 56 days
Publicity
- Last advertised
- 23 December 2020
- Advertisement expiry
- 13 January 2021
Additional information
- Planning Portal ID
- PP-09301547
- Documents
- 13
- Constraints
- 7
Site constraints
Designations that overlap or adjoin the site outline.
- Flood zone 3: High probability (rivers and sea)Part of the site
- Green belt: Hertsmere
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 (21)
flood storage areas, conservation 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.
Source: Hertsmere
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Around this site
Nearby applications
- 34 Blackhorse Lane South Mimms Hertfordshire EN6 3PS18/0806/MA · AmendmentApproved0.0 mi
- 34 Blackhorse Lane South Mimms Hertfordshire EN6 3PS17/0531/HSE · FullApproved0.0 mi
- 36 Blackhorse Lane South Mimms Potters Bar Hertfordshire EN6 3PS22/1458/HSE · FullApproved0.0 mi
- 36 Blackhorse Lane South Mimms Potters Bar Hertfordshire EN6 3PS23/0506/PD42 · OutlineApproved0.0 mi
- 36 Blackhorse Lane South Mimms EN6 3PSTP/07/0904 · FullRefused0.0 mi
For applicants and trades
Contractors near this project
Find contractors for loft conversions near this site- Delieu Electrical Services LtdElectrician0.0 mi
- Green Ohms Electrical Services ltdElectrician0.0 mi
- Allprop Property Maintenance LtdBuildersBathrooms0.4 mi
- Belectrix LtdElectrician0.5 mi
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