11 Adelphi Terrace WC2N 6BJ
Proposal
Installation of louvres to windows and plant at lower basement level, creation of new door opening into Lower Robert Street, removal of water tank and rooflights from roof and installation of two vents, in connection with use as a health spa.
- Received
- 30 October 2025
- Decided
- 9 March 2026 · Application Permitted
- Council
- City of Westminster
- ReceivedSubmitted30 Oct
- ValidatedValidated30 Oct
- Consult.Consultation
- TargetTarget Date
- DecidedDecided9 Mar
Decided in 130 days
This is a planning application for window replacement at 11 Adelphi Terrace WC2N 6BJ. Westminster has handled 26,489 applications of this type and approves 88% of them, typically deciding them in 54 days. This one was decided in 130 days, 11 weeks longer than Westminster's median. The site is in the Adelphi conservation area, with 20 listed buildings nearby. There have been 4 other applications at this address. We hold 293 applications in total for the WC2N postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Westminster
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Associated applications
- 202610 Aug
Details of Appendix A checklist from the Code of Construction Practice pursuant to condition 5 of planning…
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Details of desktop study and site investigation of contaminated land, pursuant to condition 4 (phase 1, 2 and…
ApprovedDischarge of conditions26/04467/ADFULL - 202618 Mar
Detailed site investigation of contaminated Land, pursuant to condition 4 of planning permission dated 9th…
RefusedDischarge of conditions26/01742/ADFULL - 202530 Oct
Installation of louvres to windows and plant at lower basement level, creation of new door opening into Lower…
This applicationApprovedApplication25/07872/FULL - 202530 Oct
Internal connection with 2-3 Robert Street at lower basement level, installation of louvres to windows and…
ApprovedListed building consentFiled alongside25/07873/LBC
Planning history at this site
2 other applications at this property, newest first.
Planning constraints
Designations that overlap or adjoin the site outline.
- Flood zone 2: Medium probability (rivers and sea)Part of the site
- Conservation area: Adelphi
- Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
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 2026-10-09. 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.
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