We are looking into planning a week long business meeting in the San Francisco federal building (90 7th Street). Most of the attendees would be coming from other countries (Asian and south Pacific) and will likely not have cars.
I am from the east coast and am not familiar with the neighborhoods in the SF federal building are - it looks like the corner of Mission and 7th streets on google maps).
Is this building in a safe area? Any suggestions for good hotels for our visitors - if possible within walking distance to the federal building? Is the Union Square area walkable ? I noticed many of the more common hotel brands (Marriott, Hilton, Hyatt, etc) are in Union Square. Some of the more adventurous folks might use public transportation or just grab a cab, I am wondering if it is a safe area for walking to and from. I am sure the meeting attendees would also like to see some of the SF sites - so the suggested hotels should be somewhat convenient to both the meeting location and some of the common tourist sites.