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18 Shirland Mews London W9 3DY

24/03494/CLOPUDCertificate of Lawfulness (proposed)Approved
Outline / PiP

Approved on 19 July 2024

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

Ground floor single storey rear extension and loft conversion with rear dormer and two roof lights to the front

Received
26 May 2024
Ward
Harrow Road
Agent
Detailed Planning Ltd
  1. Received26 May
  2. Validated26 May
  3. Consult.
  4. Target21 Jul
  5. Decided19 Jul

Decided in 54 days (council typically 49)

About this application

This is an outline application for a single storey rear extension at 18 Shirland Mews London W9 3DY. Westminster has handled 218 applications of this type. This one was decided in 54 days, 5 days longer than Westminster's typical decision time. There are no previous applications recorded at this address. In the past year there have been 37 applications across Harrow Road. We hold 1,428 applications in total for the W9 postcode area.

82% of outline applications at City of Westminster were approved. Across all application types, the council typically decides in about 7 weeks (median).

Based on decided applications received in the last 3 years.See what's approved near your address

Application details

Postcode
W9 3DY
Application type
Certificate of Lawfulness (proposed)
Scale / size
Small

Planning application dates

Date validated
26 May 2024
Target decision date
21 July 2024

Applicant and agent

Agent
Detailed Planning Ltd
Architect profile
DETAILED PLANNING LTD
Agent address
Greenside House 50 Station Road London N22 7DD

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-13064463
Comments
0
Documents
1

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • 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: Westminster

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

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