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White Oaks Wash Lane South Mimms Potters Bar Hertfordshire EN6 3QA

25/0861/FULFull Planning PermissionRefused
Full

Refused on 29 August 2025

Council decision: Refuse PermissionDelegated (officer decision)3 reasons for refusal

Proposal

Retention of wall and electronic gate.

Received
6 June 2025
Decision level
Delegated (officer decision)
Public comments
10
Ward
Shenley
  1. Received6 Jun
  2. Validated12 Jun
  3. Consult.21 Aug
  4. Target29 Aug
  5. Decided29 Aug

Decided in 78 days (council typically 56)

About this application

This is a full planning application at White Oaks Wash Lane South Mimms Potters Bar Hertfordshire EN6 3QA. Hertsmere has handled 1,861 applications of this type. This one was decided in 84 days, 4 weeks 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 3,350 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

Why it was refused

  1. The development, by virtue of its siting, scale and appearance, appears unduly dominant within the street scene and does not accord with the prevailing character of the street scene. By virtue of its prominent appearance, the development results in detrimental harm to the character and appearance of the street scene, and detracts from the landscape quality of the area. Therefore, the development conflicts with the NPPF 2024, policies SADM11 and SADM30 of the Site Allocations and Development Management Polices Plan (2016) and policy CS22 of Hertsmere's Core Strategy (2013).
  2. The access is not in accordance with Hertfordshire County Council's (HCC) specifications and interferes with the free and safe flow of highway users, including walkers and cyclists, and falls significant short of the requirements for equestrians and individuals with mobility issues. Furthermore, the development presents a visual and physical barrier to access to the Public Right of Way network and the Wash Lane Nature Reserve, a community facility to the south of the site. The development therefore results in a detrimental impact on highway and pedestrian safety, restricts the use of sustainable means of transport and is detrimental to the enablement and support of physical activity and healthy lifestyles, and therefore does not comply with The Equality Act 2010, NPPF 2024, Policies CS15, CS18, CS19, CS25 and CS26 of the Core Strategy and Policies SADM32 and SADM40 of the Site Allocation and Development Management Policies Plan 2016.
  3. The development lies within in Flood Zone 2 and 3 as shown on the Environment Agency maps. Due to insufficient information provided, the development is considered to be at risk of flooding, and could increase the risk of flooding elsewhere. The proposal is therefore contrary to the NPPF, CS16 of the Core Strategy 2013 and Policies SADM13, SADM14 and SADM15 of the Site Allocations and Development Management Policies Plan 2016.

From the council's decision notice.

Application details

Postcode
EN6 3QA
Application type
Full Planning Permission
Scale / size
Medium
Parish
The Parish Council South Mimms And Ridge

Planning application dates

Date validated
12 June 2025
Consultation expiry
27 August 2025
Consultation start
1 September 2025
Consultation end
21 August 2025
Neighbour consultation start
1 September 2025
Neighbour consultation end
8 July 2025
Last date for comments
27 August 2025
Target decision date
29 August 2025

Applicant and agent

Agent address
140 Weston Road Aston Clinton Aylesbury HP22 5EP

Planning decision

Statutory period
78 days

Publicity

Last advertised
6 August 2025
Advertisement expiry
27 August 2025

Appeal history

6001766
Dismissed
Type: Planning AppealProcedure: Written RepresentationsDecision: 12 February 2026Dev Type: Other minor developmentsReason: refused
Green Belt

Additional information

Planning Portal ID
PP-14034776
Documents
11
Constraints
9

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations at the address point. Ones next to the site may also apply.

  • 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.

Source: Hertsmere

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