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145 Chase Side London N14 5HE

26/0485/192Proposed Lawful Development CertificateApproved
Outline / PiP

Approved on 31 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

Roof extension involving extension involving rear dormer window and new side gable window

Received
9 February 2026
Ward
Brunswick Park
Agent
HK Architects
  1. Received9 Feb
  2. Validated9 Feb
  3. Consult.
  4. Target6 Apr
  5. Decided31 Mar

Decided in 50 days (council typically 56)

About this application

This is an outline application for a dormer extension at 145 Chase Side London N14 5HE. Barnet has handled 2,167 applications of this type. This one was decided in 50 days, 6 days quicker 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 57 applications across Brunswick Park. We hold 945 applications in total for the N14 postcode area.

75% of outline 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

Application details

Postcode
N14 5HE
Application type
Proposed Lawful Development Certificate
Scale / size
Small

Planning application dates

Date validated
9 February 2026
Target decision date
6 April 2026

Applicant and agent

Agent
HK Architects
Architect profile
HK ARCHITECTS LTD
Agent address
198 High Street Barnet Herts EN5 5SZ

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-14687878
Comments
0
Documents
5

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
    9 Sep

    Single storey rear extension. New first floor rear window

    ApprovedApplication26/3284/HSE

Source: Barnet

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

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