Take Highway 80 west untill the Highway 12 exit North (Napa/Sonoma)
Highway 12 will turn into Highway 29 North (Napa/Sonoma)
Take 29 until Highway 121/12 North...Highway 121/12 splits, at this point you want to stay on Highway 12 North to the Sonoma Square.
Upon entering Sonoma, you will come to a stop sign in front of City Hall and the park
Take a left and then take your next right turn (1st Street West)
Go to the end of the block and turn left (West Spain Street)
Follow West Spain Street until you come to 400 W. Spain St (on the right)
directions from oakland/berkeley:
Take Highway 80 East until the Highway 29 exit North (Napa)
Before reaching the town of Napa, Highway 121/12 (left turn) takes you west to Sonoma
Highway 121/12 splits, at this point you want to stay on Highway 12 North to the Sonoma Square.
Upon entering Sonoma, you will come to a stop sign in front of City Hall and the park
Take a left and then take your next right turn (1st Street West)
Go to the end of the block and turn left (West Spain Street)
Follow West Spain Street until you come to 400 W. Spain St (on the right)
directions from san francisco:
Take the Golden Gate Bridge to Highway 101 going North
Take the Highway 37 exit to Napa/Vallejo
Take 37 until the Highway 121 exit to Sonoma (left turn @ Sears Point Raceway) and continue until you see the turnoff for Highway 12 to Sonoma (left turn)
Follow Highway 12 until you come to the Sonoma Plaza
Upon entering Sonoma, you will come to a stop sign in front of City Hall and the park
Take a left and then take your next right turn (1st Street West)
Go to the end of the block and turn left (West Spain Street)
Follow West Spain Street until you come to 400 W. Spain St (on the right)
directions from north bay:
Take 101 South, get off at Hwy 12 towards Sonoma. Follow signs for Highway 12 and make a left on Farmer's Lane (this is still Highway 12).
Follow Highway 12 until you come to West Spain Street.
Make a left on West Spain and continue to 400 West Spain St (on the left.)