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11 Rosslyn Avenue Barnet EN4 8DH

25/5160/HSEHouseholder ApplicationApproved
Householder

Approved on 27 March 2026

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

Single storey front and rear extension and extension of existing patio area. Raising of the side garage roof. Changes to fenestration and creation of new openings

Received
23 December 2025
Ward
East Barnet
Agent
AS Architectual Services Ltd
  1. Received23 Dec
  2. Validated23 Dec
  3. Consult.
  4. Target17 Feb
  5. Decided27 Mar

Decided in 94 days (council typically 56)

About this application

This is a full planning application for a rear extension at 11 Rosslyn Avenue Barnet EN4 8DH. Barnet has handled 4,516 applications of this type. This one was decided in 94 days, 5 weeks longer than Barnet's typical decision time. There are no previous applications recorded at this address. In the past year there have been 80 applications across East Barnet. We hold 889 applications in total for the EN4 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.See what's approved near your address

Application details

Postcode
EN4 8DH
Application type
Householder Application
Scale / size
Small

Planning application dates

Date validated
23 December 2025
Consultation expiry
22 January 2026
Target decision date
17 February 2026

Applicant and agent

Agent
AS Architectual Services Ltd
Agent address
20 Park Drive London N21 2LR

Planning decision

Statutory period
56 days

Publicity

Site notice start
1 January 2026
Site notice end
22 January 2026

Additional information

Planning Portal ID
PP-14587525
Comments
0
Documents
10

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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