Skip to content

48 Friars Avenue London N20 0XH

26/3102/HSEFullRefused

Refused on 19 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

Enlargement of basement/lower ground floor, Part single, part two storey side/rear extensions. Conversion of garage into habitable space, insertion of window to replace garage door. Enlargement of existing Roof extension, rear dormer window. with 3no. front facing rooflights

Received
24 August 2026
  1. Received24 Aug
  2. Validated24 Aug
  3. Consult.
  4. Target
  5. Decided19 Oct

Decided in 56 days (council typically 56)

About this application

This is a full planning application for a dormer extension at 48 Friars Avenue London N20 0XH. Barnet has handled 4,516 applications of this type. This one was decided in 56 days. There are no previous applications recorded at this address. In the past year there have been 61 applications across Whetstone. We hold 929 applications in total for the N20 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 cumulative impact of the proposed side and rear extensions at basement, ground floor and first floor levels, by reason of their excessive depth, scale and bulk, when considered alongside the existing heavily extended built form, would result in an unduly dominant, incongruous and visually intrusive form of development. The proposal would fail to respect the established pattern, character of development within the locality and would cause harm to the character and appearance of the host property, the streetscene and the wider surrounding area. The proposal 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 proposed first floor rear extension, by reason of its height, excessive rearward projection and siting in proximity to neighbouring boundary, would appear overbearing and visually obtrusive and would result in an undue loss of outlook, detrimental to the residential amenities of the neighbouring occupier at No. 46 Friars Avenue, 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 Guidance SPD (2026)

From the council's decision notice.

Application details

Postcode
N20 0XH
Application type
Full
Scale / size
Small

Planning application dates

Date validated
24 August 2026
Consultation expiry
24 September 2026

Applicant and agent

Architect profile
A DESIGN STUDIO LIMITED

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.

Track this application

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

Get email alerts near N20

New planning applications delivered to your inbox daily.

Around this site

Discuss this application on r/PlanningPermissionUK

For applicants and trades

Planning something similar?

See what the council approved and refused for basements on your street. Pick your home and get the evidence before you pay for drawings.

See what gets approved on your streetBuying this property? Report on this address