North San Fernando Valley. Office Space for Lease. 3 Suites: 12, 17, 20. Mission Hills by 405/118 Freeways, 15300 Devonshire St. 91345. #12, Beautiful Tree View Suite, $501/month, free utilities. 2nd floor, mailbox and security parking #17, $201/month, 3rd floor Suite. Mailbox and street parking #20, $301/month, 3rd floor Suite. Mailbox and street parking Phone calls only.