From SF Valley:

101 South
Exit at Vine St
Right on Vine St
Continue onto Rossmore Ave.
Left on Beverly Blvd
Left on Norton Ave. to 403 N.

From South Bay or 405:

East on Santa Monica Fwy (10)
Exit at La Brea
North on La Brea (2nd exit)
Right on Beverly Blvd.
Left on Norton Ave. to 403 N.