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10 Blenheim Road London NW8 0LU

25/05434/CLEUDCertificate of Lawfulness (existing)Approved
Lawful development certificate

Approved on 16 February 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

Confirmation of the lawful implementation of planning permission dated (RN: 21/05522/FULL) has commenced before the expiry of the three year time period and may, therefore, lawfully be carried out and completed.

Received
4 August 2025
Public comments
1
Ward
Abbey Road
  1. Received4 Aug
  2. Validated4 Aug
  3. Consult.
  4. Target29 Sep
  5. Decided16 Feb

Decided in 196 days (council typically 49)

About this application

This is an application to amend a permission at 10 Blenheim Road London NW8 0LU. Westminster has handled 604 applications of this type. This one was decided in 196 days, 21 weeks longer than Westminster's typical decision time. The site is in the St John's Wood conservation area, with 20 listed buildings nearby. There has been 1 other application at this address. In the past year there have been 113 applications across Abbey Road. We hold 2,753 applications in total for the NW8 postcode area.

88% of amendment 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
NW8 0LU
Application type
Certificate of Lawfulness (existing)
Scale / size
Small

Planning application dates

Date validated
4 August 2025
Consultation expiry
10 September 2025
Target decision date
29 September 2025

Applicant and agent

Agent
Savills
Agent address
33 Margaret Street London W1G 0JD United Kingdom

Planning decision

Statutory period
56 days

Publicity

Last advertised
20 August 2025
Advertisement expiry
10 September 2025
Site notice start
13 August 2025
Site notice end
3 September 2025

Additional information

Planning Portal ID
PP-14134991
Documents
20

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: St John's Wood
  • Listed building: Grade II: 9 and 10, Blenheim Road Nw8On this site · +1 more
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • Tree Preservation Order: Ref W672Protected tree on or next to this site · +4 more
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (20)

flood storage areas, 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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