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The Monadnock Building, San Francisco

The Monadnock Building has 24-hour security coverage, with a guard station located in the lobby. The lobby doors are unlocked during normal business hours.

415-344-0004 x12 (desk)         415-725-4103 (mobile)

It is essential to the safety of all tenants that any suspicious person(s) be reported to Security as soon as possible. If an employee encounters a person who is wandering or disrupting an employee’s workspace, he or she should attempt to summon other employees to help confront the individual, as there is greater safety in having others present. It may not be safe for a single person or someone who feels threatened to confront an offending individual alone. However, obtaining a thorough description can be extremely helpful in identifying an individual at a later time. If an individual appears to be unlawfully entering a space and poses a threat to the safety of the office, immediately contact the police by dialing 911. If time permits, contact our Building Security as well.

Personal belongings should be placed in a secure, locked area at all times. Be particularly aware that most external office thefts occur around the Christmas holiday. It is important for any loss of property to be reported immediately.

Please be sure to lock your suite door before exiting for the evening.

Please take time to familiarize yourself with the Emergency Procedures for Fire and Earthquake - download and read our EMERGENCY HANDBOOK. [pdf]

San Francisco-specific emergency information for a wide variety of sitiuations.

The Monadnock Building is open during normal business hours of 6 AM to 7PM Mondays through Fridays, and 10 AM to 5:30 PM on Saturdays. After hours access is granted by a security officer who is on duty 24 hours a day, Monday through Sunday.


Fine office and retail space in the San Francisco Financial District.



The Monadnock Building
685 Market Street, Suite 550
San Francisco, California 94105-3301
Phone: 415/344-0004
Fax: 415/543-1766










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