Windmill Lane, EN5 3HX
Approved on 29 January 2026
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
Roof extension involving rear dormer window and 5no. front facing rooflights
- Submitted
- 5 December 2025
- Council
- London Borough of Barnet
- ReceivedSubmitted5 Dec
- ValidatedValidated
- Consult.Consultation
- TargetTarget Date
- DecidedDecided29 Jan
Decided in 55 days (council typically 56)
About this application
This is a planning application for a dormer extension at Windmill Lane, EN5 3HX. Barnet has handled 526 applications of this type. This one was decided in 55 days. There have been 6 other applications at this address. In the past year there have been 52 applications across HB22. We hold 3,740 applications in total for the EN5 postcode area.
83% of lawful development: proposed use applications at London Borough of Barnet 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
- EN5 3HX
- Application type
- Lawful development: Proposed use
Site constraints
Designations that overlap or adjoin the site outline.
- Article 4 direction: Article 4 Small Houses in Multiple Occupation (HMO) Area 1
- Tree Preservation Order: Ref TRE/BA/36Protected tree on or next to this site
- Flood zone 1: Low probability (rivers and sea)
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.
Planning history at this site
10 other applications at this property, newest first.
- 20266 Oct
Submission of details of condition 9 (Written Scheme of Investigation (WSI)) pursuant to planning permission…
ApprovedDischarge of conditions26/3604/CON - 202618 Jun
Submission of details of condition 8 (Levels) pursuant to planning permission 26/0051/HSE
ApprovedDischarge of conditions26/2293/CON - 202611 Jun
Additional partial storey at first floor level (Amended Proposal)
RefusedHouseholder26/2108/HSE - 20261 May
Submission of details of Conditions 3 (Materials) and 5 (Levels) pursuant to planning permission 26/0718/S73
ApprovedDischarge of conditions26/1657/CON - 202627 Apr
Condition 9 Discharge – Chesterfield, Windmill Lane, EN5 3HX
ApprovedDischarge of conditions26/1577/CON - 20262 Apr
Chesterfield
ApprovedDischarge of conditions26/1274/CON - 20267 Jan
Single storey side extension with balcony above. Enclosure of existing ground floor side veranda and first…
ApprovedHouseholder26/0051/HSE - 202518 Dec
Submission of details of conditions 4 (Demolition & Construction Management and Logistics Plan) 7 (Services…
ApprovedDischarge of conditions25/4888/CON - 20252 Dec
Single storey side extension with balcony above. Enclosure of existing ground floor side veranda and first…
RefusedHouseholder25/4816/HSE - 202524 Mar
TEST CASE TEST CASE TEST CASE
RBAll Other25/0915/BNG
Source: Barnet
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Around this site
Nearby applications
- Chesterfield Windmill Lane Barnet EN5 3HX25/4816/HSE · FullRefused0.0 mi
- Windmill House Windmill Lane Barnet EN5 3HX25/4273/LBC · HeritageApproved0.1 mi
- 1 Rockways Barnet EN5 3JJ22/6115/PNU · OutlineRefused0.1 mi
- 31 Rockways Barnet EN5 3JJTPP/0326/23 · TreesApproved0.1 mi
- 8 Barnet Gate Lane Barnet EN5 2AB25/4248/CON · ConditionsApproved0.1 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Atlas South Technical Service LimitedVerifiedLondonProperty MaintenanceHandyman9.3 mi
- Orient Construction Consultancy LimitedVerifiedLondon9.8 mi
- Powercom ESI LtdElectrician0.3 mi
- Property Run Contracts LtdElectrician0.6 mi
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