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143 Mutton Lane Potters Bar Hertfordshire EN6 2HD

25/0036/CLECertificate Proposed Lawful Use/DevPermitted
Outline / PiP

Proposal

Conversion of loft to habitable space including rear dormer, 3x front roof lights and associated roof alterations. Certificate of Lawful Development (Existing).

Received
14 January 2025
Decided
13 March 2025 · Grant Lawful Certificate (existing)
Decision level
Delegated (officer decision)
Public comments
1
Ward
Potters Bar Parkfield
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.

  1. Received14 Jan
  2. Validated21 Jan
  3. Consult.4 Apr
  4. Target19 Mar
  5. Decided13 Mar

Decided in 51 days (council typically 56)

8 weeks typical decision time in Hertsmere81% of outline applications approved

This is an outline application for a dormer extension at 143 Mutton Lane Potters Bar Hertfordshire EN6 2HD. Hertsmere has handled 952 applications of this type and approves 82% of them, typically deciding them in 48 days. This one was decided in 58 days, 10 days longer than Hertsmere's median. There has been 1 other application at this address. In the past year there have been 109 applications across Potters Bar Parkfield. We hold 2,967 applications in total for the EN6 postcode area.

Application Details

Reference
25/0036/CLE
Address
143 Mutton Lane Potters Bar Hertfordshire EN6 2HD
Postcode
EN6 2HD
Local Authority
Hertsmere
Application Type
Certificate Proposed Lawful Use/Dev
Scale / Size
Small
Decision Status
Permitted
Current Status
Decided
Ward
Potters Bar Parkfield
Parish
No Parish

Applicant & Agent

Agent
The Loft Converter
Agent Address
33 East Barnet Road New Barnet EN4 8RN

Planning Application Dates

Date Received
14 January 2025
Consultation Expiry
4 April 2025
Target Decision Date
19 March 2025
Date Decided
13 March 2025
Date Validated
21 January 2025
Date Submitted
14 January 2025
Consultation Start
14 March 2025
Consultation End
4 April 2025
Neighbour Consultation Start
23 January 2025
Neighbour Consultation End
13 February 2025
Last Date for Comments
4 April 2025
Decision Issued
14 March 2025
Permission Expires
14 March 2028

Planning Decision

Decision
Grant Lawful Certificate (existing)
Decided By
Delegated Decision
Statutory Period
57 days

Publicity

Appeal

Additional Information

Planning Portal ID
PP-13693561
Comments
1
Documents
5
Constraints
8
Coordinates
51.693626, -0.186955
Enriching application data
2/3
Council recordsAppealsFlood risk

Source: Hertsmere

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Planning constraints

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 2026-10-09. 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.

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