From 101 North:

Take Ignacio Blvd/Bell Marin Keys Blvd. Exit
Left onto Nave Dr.
Left onto Ignavio Blvd.
End at 340 Ignacio Blvd.

From 101 South:

Take the Ignacio Blvd. exit
Stay straight to go onto Enfrente Rd.
Right onto Ignacio Blvd.
End at 340 Ignacio Blvd.