Via di San Gallo 33 - Firenze
The railway station is less than a mile away: take Via Nazionale, going down to Piazza Independenza, where you have to turn right to Via XXVII Aprile, then the third street on the left is Via San Gallo.
From the exits of Northern Florence, Southern Firenze and Firenze Certosa, follow the signs for the city center and when you reach Piazza della Libertà, proceed to Via Cavour by entering the restricted traffic zone. Once in Piazza San Marco turn right to Via XXVII Aprile. The first street you will pass on your right is Via San Gallo. You have arrived.