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119 Billy Lows Lane Potters Bar Hertfordshire EN6 1UY

25/1584/HSEHouseholder ApplicationApproved
Householder

Approved on 16 January 2026

Council decision: Grant PermissionDelegated (officer decision)3 conditions

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 single storey rear extension with flat roof extending over existing single storey extension, and replacement porch to front elevation, alterations to front elevation window designs.

Received
3 November 2025
Decision level
Delegated (officer decision)
Public comments
1
Ward
Potters Bar Parkfield
  1. Received3 Nov
  2. Validated7 Nov
  3. Consult.1 Dec
  4. Target21 Jan
  5. Decided16 Jan

Decided in 70 days (council typically 56)

About this application

This is a full planning application for a single storey rear extension at 119 Billy Lows Lane Potters Bar Hertfordshire EN6 1UY. Hertsmere has handled 1,861 applications of this type. This one was decided in 74 days, 3 weeks longer than Hertsmere's typical decision time. There has been 1 other application at this address. In the past year there have been 107 applications across Potters Bar Parkfield. 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 1UY
Application type
Householder Application
Scale / size
Medium
Parish
No Parish

Planning application dates

Date validated
7 November 2025
Consultation expiry
2 December 2025
Consultation start
10 November 2025
Consultation end
1 December 2025
Neighbour consultation start
11 November 2025
Neighbour consultation end
2 December 2025
Last date for comments
2 December 2025
Target decision date
21 January 2026
Decision issued
19 January 2026
Permission expires
19 January 2029

Planning decision

Statutory period
75 days

Additional information

Planning Portal ID
PP-14457383
Documents
11
Constraints
7

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • 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 (22)

flood storage areas, conservation areas, listed buildings, green belt, 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.

Associated applications

  1. 2026
    30 Jun

    Application for a non-material amendment to allow for reinstatement of the omitted side window to the…

    ApprovedNon-material amendmentAmendment26/0907/MA
  2. 2025
    3 Nov

    Construction of single storey rear extension with flat roof extending over existing single storey extension…

    This applicationApprovedFull25/1584/HSE

Source: Hertsmere

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