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91 Southfields London NW4 4NA

25/5149/HSEHouseholder ApplicationRefused
Householder

Refused on 2 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 rear extension with 2no. rooflights. Modification of the existing front porch entrance. Replacement of existing windows. Insertion of 1no. front facing rooflight

Received
22 December 2025
Ward
Hendon
Agent
Studio Interdisciplinary Thought Operations
  1. Received22 Dec
  2. Validated5 Jan
  3. Consult.
  4. Target2 Mar
  5. Decided2 Mar

Decided in 56 days (council typically 56)

About this application

This is a full planning application for a single storey rear extension at 91 Southfields London NW4 4NA. Barnet has handled 4,516 applications of this type. This one was decided in 70 days, 2 weeks longer than Barnet's typical decision time. There are no previous applications recorded 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.See what's approved near your address

Application details

Postcode
NW4 4NA
Application type
Householder Application
Scale / size
Small

Planning application dates

Date validated
5 January 2026
Consultation expiry
5 February 2026
Target decision date
2 March 2026

Applicant and agent

Agent
Studio Interdisciplinary Thought Operations
Architect profile
STUDIO INTERDISCIPLINARY THOUGHT OPERATIONS LTD
Agent address
Flat 59 Parker Building Freda Street London SE16 4ED

Planning decision

Statutory period
56 days

Publicity

Site notice start
15 January 2026
Site notice end
5 February 2026

Additional information

Planning Portal ID
PP-14457426
Comments
0
Documents
16

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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