BASE 42 Conduit Street Mayfair, Regent Street

42 Conduit Street is a Grade II listed Mayfair townhouse between Regent Street and New Bond Street, in the heart of the West End. The building was fully reconfigured and refurbished (Colman Architects, completed August 2025) to a 'fabric first' EPC 'A' office standard behind its period brick-and-stucco facade, combining ground and lower-ground retail frontage — currently let to Fabiana Filippi — with contemporary office floors above, finished with parquet flooring, restored fireplaces and full-height sash windows. BASE runs the office floors as a single fully managed suite.

One private office is available now: a 50-desk suite of 5,363 sq ft across the building's office floors, with 3 meeting rooms and dedicated breakout areas, offered at £120,000 per month (£2,400 per desk). All prices are quoted per month in GBP, and BASE's managed-office model covers rent, fit-out, IT, cleaning and coffee on a single invoice.

The building sits a short walk from Oxford Circus station (Bakerloo, Victoria and Central lines, verify walk time) and Bond Street station (Central and Jubilee lines plus the Elizabeth line, verify walk time), both within easy reach of Regent Street and New Bond Street.