From Bologna (about 30-35 minutes):

Take the A1/E35 highway in the direction of Florence. Exit at the Valsamoggia toll booth. Follow the signs to Castello di Serravalle. 

From Modena (about 40-45 minutes):

Take the SS9 in the direction of Bologna.Continue on SP569 in the direction of Valsamoggia/Castello di Serravalle. Follow the signs to Castello di Serravalle.

The winery has ample free parking for guests.

Cycling: 

There are many routes leading to Serravalle Castle, you can check out some of them by clicking here