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27 Wyndham Street London W1H 1DD

26/02668/CLLBCert of Law - Prposed works to LBApproved

Approved on 20 May 2026

Site boundary (council red line)

Proposal

Repairs to the basement and lower ground floor

Received
21 April 2026
Ward
Marylebone
Agent
Subtilis Consulting Ltd
  1. Received21 Apr
  2. Validated21 Apr
  3. Consult.
  4. Target2 Jun
  5. Decided20 May

Decided in 29 days

About this application

This is a planning application at 27 Wyndham Street London W1H 1DD. Westminster has handled 27,078 applications of this type. This one was decided in 29 days, 3 weeks quicker than Westminster's typical decision time. The site is in the Portman Estate conservation area, with 17 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 171 applications across Marylebone. We hold 896 applications in total for the W1H postcode area.

Application details

Postcode
W1H 1DD
Application type
Cert of Law - Prposed works to LB
Scale / size
Small

Planning application dates

Date validated
21 April 2026
Target decision date
2 June 2026

Applicant and agent

Agent
Subtilis Consulting Ltd
Agent address
163 East Park Farm Drive Charvil Reading Berkshire RG10 9UH

Planning decision

Statutory period
42 days

Additional information

Comments
0
Documents
7

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Portman Estate
  • Listed building: Grade II: 26-34, Wyndham Street W1On or next to this site
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • Flood zone 1: Low probability (rivers and sea)
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.

Source: Westminster

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

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