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42 Rosemont Avenue London N12 0BX

26/1821/HSEHouseholder ApplicationRefused
Householder

Refused on 28 July 2026

Council decision: RefuseDelegated (officer decision)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

Addition of second floor level. New front cycle store and refuse/recycling area

Received
14 May 2026
Decision level
Delegated (officer decision)
Public comments
8
Ward
West Finchley
  1. Received14 May
  2. Validated2 Jun
  3. Consult.
  4. Target28 Jul
  5. Decided28 Jul

Decided in 56 days (council typically 56)

About this application

This is a full planning application at 42 Rosemont Avenue London N12 0BX. Barnet has handled 4,516 applications of this type. This one was decided in 75 days, 3 weeks longer than Barnet's typical decision time. The site is in 1 listed building nearby. There has been 1 other application at this address. In the past year there have been 103 applications across West Finchley. We hold 796 applications in total for the N12 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.Planning something similar? See what gets approved on your street

Why it was refused

  1. The proposed addition of a second floor level would, by reason of its excessive height, bulk, massing and design with a flat roof form result in a visually dominant, top heavy and incongruous form of development that fails to respect the proportions of the host building and the established uniform character of the adjoining terrace along Rosemont Avenue. The proposal would appear discordant within the street scene and would be detrimental to the character and appearance of the area. The development is therefore contrary to Policy D3 of the London Plan (2021), Policies CDH01 and CDH05 of the Barnet Local Plan (2025) and the Sustainable Design and Development Guidance SPD (2026).
  2. The proposal would, by reason of its scale, height and siting, result in an unacceptable overbearing appearance, increased sense of enclosure and loss of outlook to the neighbouring property, which would be detriment to the residential amenities of occupiers of the flat at 316 Ballards Lane. As such, the proposal is contrary to Policy D3 of the London Plan (2021), Policies CDH01 and CDH05 of the Barnet Local Plan (2025) and the adopted Residential Design Guidance and Sustainable Design and Construction SPD's (2016).

From the council's decision notice.

Application details

Postcode
N12 0BX
Application type
Householder Application
Scale / size
Small

Planning application dates

Date validated
2 June 2026
Consultation expiry
2 July 2026
Neighbour consultation start
29 July 2026
Target decision date
28 July 2026

Applicant and agent

Agent
Stuart A Greenberg
Agent address
Donna 7 Willenhall Avenue New Barnet Hertfordshire England EN5 1JN

Planning decision

Statutory period
56 days

Publicity

Site notice start
11 June 2026
Site notice end
2 July 2026

Additional information

Documents
17

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.

Source: Barnet

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

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