49 Heddon Court Avenue Barnet EN4 9NG
Approved on 14 April 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 with juliette balcony, 1no front facing rooflight and new side gable window with retention of existing side pitched roof
- Received
- 17 February 2026
- Council
- London Borough of Barnet
- Ward
- East Barnet
- Agent
- Alan Cox Associates Ltd
- ReceivedReceived17 Feb
- ValidatedValidated17 Feb
- Consult.Consultation
- TargetTarget Date14 Apr
- DecidedDecided14 Apr
Decided in 56 days (council typically 56)
About this application
This is a full planning application for a dormer extension at 49 Heddon Court Avenue Barnet EN4 9NG. Barnet has handled 4,516 applications of this type. This one was decided in 56 days. There have been 3 other applications at this address. In the past year there have been 80 applications across East Barnet. We hold 892 applications in total for the EN4 postcode area.
77% of full 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
- EN4 9NG
- Application type
- Householder Application
- Scale / size
- Small
Planning application dates
- Date validated
- 17 February 2026
- Consultation expiry
- 19 March 2026
- Target decision date
- 14 April 2026
Applicant and agent
- Agent
- Alan Cox Associates Ltd
- Architect profile
- ALAN COX ASSOCIATES LIMITED
- Agent address
- 224A High Street Barnet EN5 5SZ
Planning decision
- Statutory period
- 56 days
Publicity
- Site notice start
- 26 February 2026
- Site notice end
- 19 March 2026
Site constraints
Designations that overlap or adjoin the site outline.
- Article 4 direction: Article 4 Small Houses in Multiple Occupation (HMO) Area 1
- Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (23)
flood storage areas, conservation areas, listed buildings, tree preservation orders, 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
- 202617 Feb
Roof extension involving rear dormer window with juliette balcony, 1no front facing rooflight and new side…
This applicationApprovedFull26/0599/HSE - 202612 Feb
Lower ground and ground floor rear extension including formation of rear balcony with privacy screens and…
RefusedHouseholderFiled alongside26/0548/HSE
Planning history at this site
2 other applications at this property, newest first.
- 202620 Apr
Lower ground and ground floor rear extension including formation of rear balcony with privacy screens and…
ApprovedApplication26/1431/HSE - 202614 Jan
Removal of chimney on rear elevation and removal of pitched roof above existing two storey side extension…
ApprovedProposed Lawful Development Certificate26/0133/192
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
- 49 Heddon Court Avenue Barnet EN4 9NG26/0548/HSE · FullRefused0.0 mi
- 49 Heddon Court Avenue Barnet EN4 9NG26/0133/192 · OutlineApproved0.0 mi
- 58 Heddon Court Avenue, Barnet, EN4 9NG24/03788/OAApproved0.0 mi
- 67 Ashurst Road Barnet EN4 9LH23/5486/192 · OutlineRefused0.1 mi
- 147 Cat Hill Barnet EN4 8HR25/1662/HSE · FullApproved0.1 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Kabilo LimitedVerifiedLondonExtensionsLoft Conversions7.7 mi
- Orient Construction Consultancy LimitedVerifiedLondon7.7 mi
- Atlas South Technical Service LimitedVerifiedLondonProperty MaintenanceHandyman8.5 mi
- Avent Roofing ServicesVerifiedWestminsterRoofing9.6 mi
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