306, Hertford Road, N9 7HD
Proposal
Change of use from Use Class C3 (dwelling house) to Use Class C4 (HMO-house in multiple occupation) involving single storey rear and infill extension, rear dormer to outrigger dormer, front roof lights, with associated amenity, cycle and refuse storage.
- Received
- 1 September 2026
- Decided
- 5 October 2026
- Council
- London Borough of Enfield
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.
- ReceivedSubmitted1 Sep
- ValidatedValidated
- Consult.Consultation
- TargetTarget Date
- DecidedDecided5 Oct
Decided in 34 days (council typically 49)
This is a planning application for a dormer extension at 306, Hertford Road, N9 7HD. Enfield has handled 1,063 applications of this type and approves 70% of them, typically deciding them in 55 days. This one was decided in 34 days, 3 weeks quicker than Enfield's median. The site is in a conservation area. There are no previous applications recorded at this address. In the past year there have been 165 applications across Jubilee. We hold 1,074 applications in total for the N9 postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Why it was refused
- The proposal would also result in an unacceptable concentration of Houses in Multiple Occupation within the immediate frontage, with more than one in five units in non-family use, including an existing HMO at 300 Hertford Road. This represents a breach of the "1 in 5" criterion of Policy DMD5 of Enfield's Development Management Document (2014) and is considered to result in a clear erosion of the established residential character of the area.
From the council's decision notice.
Publicity
Appeal
Additional Information
Source: Enfield
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Planning history at this site
3 other applications at this property, newest first.
- 20269 Sep
Single storey rear and side extensions, rear dormer with rear outrigger dormer, front roof lights and…
PendingApplication26/03671/CEA - 20269 Sep
Change of use from Use Class C3 (dwelling house) to a Class Sui Generis (HMO-house in multiple occupation)…
PendingApplication26/03708/FUL - 20263 Sep
Single storey rear extension 6m deep x 3m high (3m high to eaves) and single storey infill extension 6m deep…
PendingApplication26/03667/PRH
Planning constraints
Designations that overlap or adjoin the site outline.
- Article 4 direction: Borough wide
- Flood zone 1: Low probability (rivers and sea)
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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