The Adelphi Hotel. The original Adelphi Hotel (as known as the Adelphi and Post Office Hotel) was built on this site in 1835 by Esau Carter who has a claim to have been Blackpool's first Postman. In 1923 the building was rebuilt by the local brewers Catterall & Swarbrick and given a white tiled exterior, parts of which can still be seen in Adelphi Street.