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27A, Millway, Mill Hill, NW7 3QR

26/0507/FULFull planning permissionRefused
Full

Refused on 2 April 2026

2 reasons for refusal

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

Roof extension including 1no. side dormer window, 1no. rear dormer window and 2no. front facing rooflights to provide 1no. short-term let unit (Class C1). Bin and bike storage

Submitted
9 February 2026
  1. Received9 Feb
  2. Validated
  3. Consult.
  4. Target
  5. Decided2 Apr

Decided in 52 days (council typically 56)

About this application

This is a planning application for a dormer extension at 27A, Millway, Mill Hill, NW7 3QR. Barnet has handled 768 applications of this type. This one was decided in 52 days, 4 days quicker than Barnet's typical decision time. There have been 5 other applications at this address. In the past year there have been 138 applications across MH22. We hold 1,044 applications in total for the NW7 postcode area.

62% of full planning permission 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

Why it was refused

  1. The proposal to convert the property to short stay accommodation, by reason of the intensification of use, would harmfully increase noise, disturbance, vehicle movements and disruption through associated general activity, especially during the frequent changeover periods, in a relatively quiet street characterised by single household dwellings, resulting in an adverse effect on the residential amenity of neighbouring occupiers and incongruous to the established character, contrary to Policy HOU05 of the LB Barnet Local Plan (2025), the Residential Design Guidance SPD (2016) and the Sustainable Design and Construction SPD (2016)
  2. The proposed flat, by reason of sub-standard floor area, inadequate ceiling height and poor outlook, would fail to provide satisfactory living conditions for future occupiers, contrary to Policy D6 of the London Plan (2021), Policy CDH01 of the LB Barnet Local Plan (2025), the Residential Design Guidance SPD (2016) and Sustainable Design and Construction SPD (2016)

From the council's decision notice.

Application details

Postcode
NW7 3QR
Application type
Full planning permission

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

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

  1. 2026
    16 Sep

    Submission of details of conditions 8 (Cycle Storage), 9 (Refuse) and 10 (Sound Insulation) of appeal…

    ApprovedDischarge of conditions26/3381/CON
  2. 2026
    9 Feb

    Roof extension including 1no. side dormer window, 1no. rear dormer window and 2no. front facing rooflights to…

    This applicationRefusedFull planning permission26/0507/FUL

Source: Barnet

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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