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11 Windmore Avenue Potters Bar Hertfordshire EN6 3BE

21/1486/CLPCertificate Proposed Lawful Use/DevApproved
Outline / PiP

Approved on 7 September 2021

Council decision: Grant Lawful Certificate (Proposed Dev)Delegated (officer decision)

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

Conversion of loft to habitable room with rear dormer, change in roof shape from hipped to gable and 2 rooflights to front. Certificate of lawfulness (Proposed).

Received
19 July 2021
Decision level
Delegated (officer decision)
Ward
Potters Bar Furzefield
  1. Received19 Jul
  2. Validated19 Jul
  3. Consult.
  4. Target13 Sep
  5. Decided7 Sep

Decided in 50 days (council typically 56)

About this application

This is an outline application for a dormer extension at 11 Windmore Avenue Potters Bar Hertfordshire EN6 3BE. Hertsmere has handled 952 applications of this type. This one was decided in 50 days, 6 days quicker than Hertsmere's typical decision time. There are no previous applications recorded at this address. In the past year there have been 96 applications across Potters Bar Furzefield. We hold 3,350 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

Application details

Postcode
EN6 3BE
Application type
Certificate Proposed Lawful Use/Dev
Scale / size
Small
Parish
No Parish

Planning application dates

Date validated
19 July 2021
Target decision date
13 September 2021
Decision issued
8 September 2021
Permission expires
8 September 2024

Applicant and agent

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

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-10047169
Comments
0
Documents
16
Constraints
3

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Flood zone 2: Medium probability (rivers and sea)Part of the site

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.

Source: Hertsmere

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