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9 North Square London NW11 7AB

25/4777/HSEHouseholder ApplicationApproved
Householder

Approved on 30 January 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

Changes to the rear ground floor fenestration, to include the replacement of a rear window for a door. Removal of a doorway in the external storeroom, to be filled in with brickwork. Internal alterations and refurbishments to ground, first and second floor, including the adaptation of an existing chimney, partial removal of walls, new partitioning and the conversion of a rear outrigger to form a Utility Space and Cycle Store. Existing stone slabs to rear garden to be replaced with lawn

Received
1 December 2025
Ward
Garden Suburb
Agent
Simon Miller Architects Ltd
  1. Received1 Dec
  2. Validated1 Dec
  3. Consult.
  4. Target26 Jan
  5. Decided30 Jan

Decided in 60 days (council typically 56)

About this application

This is a full planning application for window replacement at 9 North Square London NW11 7AB. Barnet has handled 4,516 applications of this type. This one was decided in 60 days, 4 days longer than Barnet's typical decision time. The site is in the Hampstead Garden Suburb conservation area, with 11 listed buildings nearby. There has been 1 other application at this address. In the past year there have been 211 applications across Garden Suburb. We hold 1,887 applications in total for the NW11 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
NW11 7AB
Application type
Householder Application
Scale / size
Small

Planning application dates

Date validated
1 December 2025
Consultation expiry
1 January 2026
Target decision date
26 January 2026

Applicant and agent

Agent
Simon Miller Architects Ltd
Architect profile
SIMON MILLER ARCHITECTS LTD
Agent address
11 Portsdown Mews London NW11 7HD

Planning decision

Statutory period
56 days

Publicity

Last advertised
11 December 2025
Advertisement expiry
1 January 2026
Site notice start
11 December 2025
Site notice end
1 January 2026

Additional information

Planning Portal ID
PP-14524413
Comments
0
Documents
47

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Also checked, none recorded (21)

flood storage areas, 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
    1 Dec

    Changes to the rear ground floor fenestration, to include the replacement of a rear window for a door…

    This applicationApprovedFull25/4777/HSE
  2. 2025
    1 Dec

    Changes to the rear ground floor fenestration, to include the replacement of a rear window for a door…

    ApprovedListed building consentFiled alongside25/4778/LBC

Source: Barnet

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

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