Cedar House 73 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3PA

22/1631/LBCListed Building ConsentApproved

Approved on 7 February 2023

Council decision: Grants ConsentPlanning committee

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

Single storey side extension with green roof, alterations to fenestration at all elevations. Installation of stairs at side elevation and railings to rear. Internal alteration to include removal of walls to change internal layout and alterations to doors. Installation of solar panels to garage. Tennis Court to be resurfaced, with electric supply. External works to include additional areas of planting.

Received: 22 September 2022
Decision level: Planning committee
Public comments: 32
Council: Hertsmere Borough Council
Ward: Shenley
Agent: PBARC LTD

ReceivedReceived22 Sep
ValidatedValidated22 Sep
Consult.Consultation26 Oct
TargetTarget Date17 Nov
DecidedDecided7 Feb

Decided in 138 days (council typically 56)

About this application

This is a heritage application for a single storey side extension at Cedar House 73 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3PA. Hertsmere has handled 105 applications of this type. This one was decided in 138 days, 12 weeks longer than Hertsmere's typical decision time. The site is in the South Mimms conservation area, with 1 listed building nearby. There have been 11 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.

86% of heritage 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 3PA
Application type: Listed Building Consent
Scale / size: Small
Parish: South Mimms Parish Council

Planning application dates

Date validated: 22 September 2022
Consultation expiry: 2 November 2022
Consultation start: 23 February 2023
Consultation end: 26 October 2022
Neighbour consultation start: 23 February 2023
Neighbour consultation end: 26 October 2022
Last date for comments: 2 November 2022
Target decision date: 17 November 2022
Committee meeting: 19 January 2023
Decision issued: 23 February 2023
Permission expires: 23 February 2026

Applicant and agent

Agent: PBARC LTD
Architect profile: PBARC LTD
Agent address: 25 Albany Gate Potters Bar Potters Bar En6 1dn

Planning decision

Statutory period: 56 days

Publicity

Last advertised: 12 October 2022
Advertisement expiry: 2 November 2022

Additional information

Planning Portal ID: PP-11566134
Documents: 36
Constraints: 11

Site constraints

Checking the site

2/3

Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Conservation area: South Mimms
Listed building: Grade II: Cedar HouseOn this site
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 (19)

flood storage areas, 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.

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

2023
27 Jun
Amendments to approved side extension (under application reference 22/1631/LBC
ApprovedListed building consentRelated23/0921/LBC
2022
22 Sep
Single storey side extension with green roof, alterations to fenestration at all elevations. Installation of…
ApprovedHouseholderFiled alongside22/1630/HSE
2022
22 Sep
Single storey side extension with green roof, alterations to fenestration at all elevations. Installation of…
This applicationApprovedListed building consent22/1631/LBC

Planning history at this site

11 other applications at this property, newest first.

Source: Hertsmere

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