17, Lyonsdown Avenue, New Barnet, EN5 1DU
Proposal
Single storey front/side extension following demolition of the existing garage and the insertion of 1no. front window (AMENDED DESCRIPTION)
- Received
- 10 August 2026
- Council
- London Borough of Barnet
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.
- ReceivedSubmitted10 Aug
- ValidatedValidated
- Consult.Consultation
- TargetTarget Date
- DecidedDecided
This is a planning application for demolition at 17, Lyonsdown Avenue, New Barnet, EN5 1DU. Barnet has handled 1,162 applications of this type and approves 82% of them, typically deciding them in 55 days. It was submitted on 10 August 2026 and is still awaiting a decision. There are no previous applications recorded at this address. In the past year there have been 92 applications across BV22. We hold 3,701 applications in total for the EN5 postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Barnet
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Planning 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/34Next to the 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 2026-10-09. 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.
Before the decision
You may need a tree survey and arboricultural impact assessment. Arboriculturists near this site
Protected trees (TPO) are on or next to this site.
- 6.9 miLondonRTPI
- 8.1 miHarrow
- 8.4 miLONDONRTPI
Nearest first, within 25 miles of the site. Every firm is listed free.
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