26/00351/FULL
Application Details
Description
Use of all floor levels at 38 Portland Place as Class E (office use) and residential (Class C3) at 9 Cavendish Mews north, removal of link building between 38 Portland Place and 9 Cavendish Mews North at ground, first and second floors, formation of a new rear stair core to main building, new external fire escape stair, creation of new terraces to office space in connection with plant space and the installation of air source heat pumps, internal alterations throughout, external alterations to the front and rear facades of the mews building, internal alterations to create new residential units, creation of new terrace spaces (Linked to 26/00352/LBC)
Council
Westminster
Application Type
Full Planning Permission Application
Date Received
21 Jan 2026
Date Validated
21 Jan 2026
Decision Date
09 Jul 2026
Council Website
View on Westminster websiteLocation
Address
Abercorn School 38 Portland Place London W1B 1LS
Postcode
W1B 1LS
UPRN
Coordinates
51.520094800000000, -0.144533100000000
Source: Application UPRN
Quick Info
- UID
- 26/00351/FULL
- Reference
- 26/00351/FULL
- Status
- Granted
- Last Updated
- 12 Jul 2026