Skip to content

61 Glenthorne Road London N11 3HU

26/2930/HSERefused

Refused on 21 October 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

Second floor extension over the existing first floor outrigger. Addition of privacy screening to first floor rear terrace

Submitted
7 August 2026
  1. Received7 Aug
  2. Validated
  3. Consult.
  4. Target
  5. Decided21 Oct

Decided in 75 days

About this application

This is a planning application for an extension at 61 Glenthorne Road London N11 3HU. Barnet has handled 16,929 applications of this type. This one was decided in 75 days, 3 weeks longer than Barnet's typical decision time. There has been 1 other application at this address. We hold 603 applications in total for the N11 postcode area.

Why it was refused

  1. The proposed second-floor rear extension, by reason of its excessive depth, width, height and design would form a visually dominant, unduly bulky, and incongruous addition harmful to the character and appearance of the existing dwelling the wider terrace and surrounding area, contrary to Policy D3 of the London Plan (2021), Policies CDH01 and CDH05 of the LB Barnet Local Plan (2025) and the Sustainable Design and Development SPD (2026).
  2. The proposed extension by reason of its excessive rearward projection, height, size and siting would be overbearing and visually obtrusive resulting in an undue loss of outlook, loss of light and increased sense of enclosure towards no.59 and 63 Glenthorne Road. The proposed extensions would be detrimental to the residential amenities of neighbouring occupiers at no.59 and 63 Glenthorne Road. The proposal would therefore fail to comply with Policy D3 of the London Plan (2021), Policy CS5 of the Local Plan Core Strategy DPD (2012), Policies CDH01 and CDH05 of the Barnet Local Plan and the Sustainable Design and Development SPD (2026).

From the council's decision notice.

Application details

Postcode
N11 3HU

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.

Planning history at this site

1 other application at this property, newest first.

  1. 2026
    4 Feb

    Second floor rear extension

    RefusedHouseholder26/0428/HSE

Source: Barnet

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

Track this application

Get email alerts when there is a planning decision or status change.

Get email alerts near N11

New planning applications delivered to your inbox daily.

Around this site

Discuss this application on r/PlanningPermissionUK

For applicants and trades

What's been approved on your street?

See what the council approved and refused near this address for the project you have in mind, and the rules that apply here.

Get The Signal Report