Directions to Our Offices Click here and enter your address to get directions to our Castro Valley office. Our Pleasanton Office is located in the country, and it is closer to Danville than to Pleasanton.  You can reach it from either the I-580 Santa Rita Road exit, or the I-680 Sycamore Valley Road exit.  Directions follow: I-580 Santa Rita Road Exit:  Turn north off the exit.  Continue through the stoplights until you come to the one where you must turn left or right.  Turn left onto Camino Tassajara and drive for approximately 5 miles.  Turn right onto Johnston Road.  After about a mile, you should go up a small hill and then to the left, where you should see many mailboxes and there will be two speed bumps near to them.  After you pass over the sixth speed bump, you should be able to see a blue house with white trim up ahead.  That is 7300 Johnston Road.  Take the second drive up to the small blue building with white trim, located below the house.  If you're feeling lost, you're not the first; just call for directions.