Devonshire Street is a street in the City of Westminster, London. Adjoining Harley Street, it is known for the number of medical establishments it contains.
The street is named after the 5th Duke of Devonshire, who was related to the ground landlord, the Duke of Portland.[1]
On its south side, Beaumont Street, Dunstable Mews, Upper Wimpole Street, Devonshire Mews South, Harley Street, Devonshire Close, Portland Place, Bridford Mews, and Hallam Street all join Devonshire Street on its south side.