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20 Heriot Road London NW4 2DG

25/3267/HSEHouseholder ApplicationApproved
Householder

Approved on 15 September 2025

Council decision: Approve subject to conditionsDelegated (officer decision)

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 hip to gable and rear dormer window

Received
5 August 2025
Decision level
Delegated (officer decision)
Ward
Hendon
Agent
Dimensions- Planning&Architecture
  1. Received5 Aug
  2. Validated5 Aug
  3. Consult.4 Sep
  4. Target30 Sep
  5. Decided15 Sep

Decided in 41 days (council typically 56)

About this application

This is a full planning application for a dormer extension at 20 Heriot Road London NW4 2DG. Barnet has handled 4,516 applications of this type. This one was decided in 41 days, 2 weeks quicker than Barnet's typical decision time. There have been 5 other applications at this address. In the past year there have been 145 applications across Hendon. We hold 3,124 applications in total for the NW4 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

Application details

Postcode
NW4 2DG
Application type
Householder Application
Scale / size
Small

Planning application dates

Date validated
5 August 2025
Consultation expiry
4 December 2025
Neighbour consultation start
7 August 2025
Neighbour consultation end
4 September 2025
Target decision date
30 September 2025

Applicant and agent

Agent
Dimensions- Planning&Architecture
Agent address
Unit 7 Hawthorn Business Park 165 Granville Road London NW2 2AZ

Planning decision

Statutory period
56 days

Publicity

Site notice start
13 November 2025
Site notice end
4 December 2025

Additional information

Planning Portal ID
PP-14228703
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.

Associated applications

  1. 2025
    5 Aug

    Roof extension involving hip to gable and rear dormer window

    This applicationApprovedFull25/3267/HSE
  2. 2025
    31 Jul

    Roof extension involving hip to gable with rear dormer windows. Erection of a rear outbuilding

    RefusedProposed Lawful Development CertificateFiled alongside25/3201/192

Source: Barnet

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

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