It was named after Lady Henrietta Cavendish, the heiress to the Manor of Marylebone lands and the wife of Edward Harley after whom Harley Street was named.
12A (rebuilt 1885–6) and was a throughway to Oxford Street but it has since been pedestrianised at the southern end.
The cul-de-sac Red Lion Yard, later known as Cavendish Buildings, ran from the eastern side before the construction of the House of Fraser (previously D.H. Evans)[2] store in Oxford Street.
Today, the street is entirely taken up by the House of Fraser department store on its western side and the John Lewis store on the east, both of which front Oxford Street.
Media related to Old Cavendish Street at Wikimedia Commons