11 Brookside South Mimms Potters Bar Hertfordshire EN6 3PT
Refused on 8 December 2021
Council decision: Refuse to Grant CertificateDelegated (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
Construction of a single storey rear extension, alterations to fenestration, installation of drainage and waste pipe to side elevation and relocation of manhole. Certificate of Lawful Development (Proposed).
- Received
- 1 October 2021
- Decision level
- Delegated (officer decision)
- Council
- Hertsmere Borough Council
- Ward
- Shenley
- ReceivedReceived1 Oct
- ValidatedValidated12 Oct
- Consult.Consultation3 Nov
- TargetTarget Date7 Dec
- DecidedDecided8 Dec
Decided in 57 days (council typically 56)
About this application
This is an outline application for a single storey rear extension at 11 Brookside South Mimms Potters Bar Hertfordshire EN6 3PT. Hertsmere has handled 952 applications of this type. This one was decided in 68 days, 12 days longer than Hertsmere's typical decision time. There have been 2 other applications 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.
81% of outline 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 3PT
- Application type
- Certificate Proposed Lawful Use/Dev
- Scale / size
- Small
- Parish
- South Mimms Parish Council
Planning application dates
- Date validated
- 12 October 2021
- Consultation expiry
- 3 November 2021
- Consultation start
- 13 October 2021
- Consultation end
- 3 November 2021
- Last date for comments
- 3 November 2021
- Target decision date
- 7 December 2021
- Decision issued
- 9 December 2021
Planning decision
- Statutory period
- 56 days
Site constraints
Designations that overlap or adjoin the site outline.
- 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 (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.
Planning history at this site
2 other applications at this property, newest first.
- 202221 Feb
Construction of single storey rear extension. Certificate of Lawful Development (Proposed).
ApprovedCertificate Proposed Lawful Use/Dev22/0309/CLP - 202212 Jan
Single storey rear extension (revised application). Certificate of Lawful Development (Proposed).
RefusedCertificate Proposed Lawful Use/Dev22/0054/CLP
Source: Hertsmere
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Around this site
Nearby applications
- 11 Brookside South Mimms Potters Bar Hertfordshire EN6 3PT22/0054/CLP · OutlineRefused0.0 mi
- 11 Brookside South Mimms Potters Bar Hertfordshire EN6 3PT22/0309/CLP · OutlineApproved0.0 mi
- 1 Brookside South Mimms Hertfordshire EN6 3PT21/0568/HSE · FullApproved0.0 mi
- 14 Brookside South Mimms Potters Bar Hertfordshire EN6 3PU26/0326/HSE · FullRefused0.0 mi
- 25 Brookside South Mimms Potters Bar Hertfordshire EN6 3PT22/1929/HSE · FullRefused0.0 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Green Ohms Electrical Services ltdElectrician0.1 mi
- Delieu Electrical Services LtdElectrician0.1 mi
- Belectrix LtdElectrician0.5 mi
- Allprop Property Maintenance LtdBuildersBathrooms0.5 mi
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