Pepys regularly walked up and down Gracious Street. He obviously lived before the fire but the street still stood and he continued to mention it.
And Jacob Harrison , Tailor of Gracious Street's will was probated in 1748.http://discovery.nationalarchives.gov.uk/details/r/D570362
(interesting possible derivation, nothing to do with Grace but Grass
Gracechurch Street is one of these unambitious streets. It derived its name, says Stow, from the grass or herb market there kept in old time, and which gave its name to the parish church of St. Bennet. St. Bennet Gracechurch, described by Stow, was destroyed in the Great Fire
Walter Thornbury. "Cornhill, Gracechurch Street, and Fenchurch Street," in Old and New London: Volume 2, (London: Cassell, Petter & Galpin, 1878), 170-183. British History Online, accessed January 1, 2018, http://www.british-history.ac.uk/old-new-london/vol2/pp170-183