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15 Frowyke Crescent South Mimms Potters Bar Hertfordshire EN6 3PQ

25/1184/CLPCertificate Proposed Lawful Use/DevRefused
Outline / PiP

Refused on 8 October 2025

Council decision: Refuse to Grant CertificateDelegated (officer decision)1 reason for refusal

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

Construction of free-standing carport canopy. Certificate of Lawful Development (Proposed).

Received
14 August 2025
Decision level
Delegated (officer decision)
Ward
Shenley
  1. Received14 Aug
  2. Validated14 Aug
  3. Consult.
  4. Target9 Oct
  5. Decided8 Oct

Decided in 55 days (council typically 56)

About this application

This is an outline application at 15 Frowyke Crescent South Mimms Potters Bar Hertfordshire EN6 3PQ. Hertsmere has handled 952 applications of this type. This one was decided in 55 days. The site is in the South Mimms conservation area. 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.

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

Why it was refused

  1. Although there was insufficient information submitted in relation to the height of the proposed car port, the proposed development does not satisfy the criteria set out in Paragraph E.3 for the permitted development in Class E, Part 1, Schedule 2 of the Town and Country Planning (General Permitted Development) (England) Order 2015 (Or as amended) because the application site is located within the South Mimms Conservation Area and the proposed car port would be situated on land between a wall forming a side elevation of the dwellinghouse and the boundary of the curtilage of the dwellinghouse. Accordingly, the application for a Certificate of Lawful Development (Proposed) should be refused. First Schedule (description of operations) Construction of free-standing carport canopy. Certificate of Lawful Development (Proposed).

From the council's decision notice.

Application details

Postcode
EN6 3PQ
Application type
Certificate Proposed Lawful Use/Dev
Scale / size
Small
Parish
The Parish Council South Mimms And Ridge

Planning application dates

Date validated
14 August 2025
Target decision date
9 October 2025
Decision issued
9 October 2025

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-14255185
Comments
0
Documents
8
Constraints
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.

Source: Hertsmere

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