finding grandmother's address/home in Piazza del Galdo

[pwwinters13]

I will be visiting my grandmother's home town in Italy in early May and was hoping to find the address of her home when she lived there in the 1890's (she immigrated in 1904). She was born in Piazza del Galdo, commune di Mercato San Severino, province Salerno. Would any municipal offices have that information? Her father was Pasquale Grimaldi; her mother's name was Giovannina Spisso. All I know is that when they left in 1904 they did not sell the home and relatives were still squatting in it in 1960 when she returned to Italy to visit. And it was a marble house.