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38, Orange Hill Road, HA8 0TN

25/4652/FULFull planning permissionRefused
Full

Refused on 25 February 2026

4 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

Two storey side extension to provide a single family dwelling house. Single storey rear extension to existing dwelling

Submitted
26 November 2025
  1. Received26 Nov
  2. Validated
  3. Consult.
  4. Target
  5. Decided25 Feb

Decided in 91 days (council typically 56)

About this application

This is a planning application for a single storey rear extension at 38, Orange Hill Road, HA8 0TN. Barnet has handled 768 applications of this type. This one was decided in 91 days, 5 weeks longer than Barnet's typical decision time. The site is in the Watling Estate conservation area. There has been 1 other application at this address. In the past year there have been 71 applications across BO22. We hold 1,449 applications in total for the HA8 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 proposed single storey rear extension by reason of its siting and excessive rearward projection would be incongruous, inappropriate and out of context with the prevailing character of the host building and wider pattern of development. The proposed two-storey side extension would unbalance the terraced group of which it forms part and result in a terracing effect. The development would therefore be detrimental to the character and appearance of the property and streetscene and would fail to preserve or enhance the character and appearance of the Watling Estate Conservation Area, contrary to Policies D3 and HC1 of the London Plan (2021), Policies CDH01, CDH05 and CDH08 of the Barnet Local Plan (adopted March 2025) and the Adopted Residential Design Guidance SPD (2016).
  2. The proposed sub-division of the site and new unit would have a width so narrow as to be uncharacteristic and incongruous with the prevailing pattern of development, appearing as a cramped and contrived development that would ultimately be to the detriment of the character of the host site and fails to preserve the character and appearance of this part of the Watling Estate conservation area. This is contrary to Policies D3 and HC1 of the London Plan (2021), Policies CDH01 and CDH08 of the Barnet Local Plan (adopted March 2025) and the Adopted Residential Design Guidance SPD (2016).
  3. The proposed single storey rear extension by reason of its siting and excessive rearward projection will have an adverse impact on the visual and residential amenities of the neighbouring occupiers at No. 40 Orange Hill Road, including a harmful loss of sunlight, an overbearing appearance and loss of outlook, which would be to the detriment of the amenities of the occupants of the neighbouring property, contrary to Policies CDH01 and CDH05 of the Barnet Local Plan (adopted March 2025) and the Adopted Residential Design Guidance SPD (2016).
  4. The proposed development fails to meet the minimum floorspace standard and bedroom size for the dwelling. It would therefore fail to provide satisfactory living conditions for future occupiers, contrary to Policy D6 of the London Plan (2021), Policy CDH01 of the Barnet Local Plan (adopted March 2025), the Adopted Residential Design Guidance and Sustainable Design and Construction SPDs (2016) .

From the council's decision notice.

Application details

Postcode
HA8 0TN
Application type
Full planning permission

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: The Watling Estate
  • 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 (22)

flood storage 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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