Hobbies and Crafts How old is the Gresham Hotel? How old is the Gresham Hotel? 205c. 1817 When did the Gresham hotel open? 1817 How many rooms does the Gresham Hotel Dublin have? 288 Who owns the Gresham Hotel in Dublin? Riu Hotels & Resorts Related Posts:Marriott Official Bed is Medium to Firm Support and is available on Amazon.com.How much does it cost to buy a hotel room?The Ritz-Carlton Hotel Company is part of what hotel chain.What is the return policy at Rooms to Go? Does Rooms To Go offer free returns?