From East Bay

Hwy 80, cross the Bay Bridge, take the 5th Street exit, go one block to 6th Street make a left, proceed on to Hwy 280 South, take the 18th Street/ Mariposa Street exit, make a right at the stop sign on to 18th Street. Proceed 4 blocks and turn right on Connecticut St.  We are located 2 ½ blocks down on the right side. 
Enter through the parking lot at 77 Connecticut Street.

From South Bay:

Hwy 101 North to Vermont exit, go straight off of the exit all the way to Connecticut Street and make a left. We’re on the right side of the street; enter through the parking lot at 77 Connecticut Street.

or
Hwy 280 North, take the Mariposa Street exit, go left on Mariposa, right on Connecticut Street, we're on the right side, enter through the parking lot at 77 Connecticut Street.

From North Bay:
Hwy 101 South, cross the Golden Gate Bridge, take the Lombard Street exit, right on Van Ness Avenue, Van Ness turns into South Van Ness, left on 17th Street, left on Connecticut Street, we're on the right side, enter through the parking lot at 77 Connecticut Street.

Free parking in lot located on Connecticut entrance.