Boston's residential real estate market has seen dramatic growth in recent years. Prices have doubled and then doubled again. No one knows how long this will last. Is it a "bubble"? If so, when will it burst? Is it still safe to invest? Is it time to move? Fine questions for owners and speculators--but the consequences of the continuing boom are disastrous for those of lesser means working in Boston. Boston's Mayor Menino has made his Affordable Housing initiative a top priority. Understanding the dynamics driving the market and the success or failure for these initiatives could be a key enabler of robust public strategies. The dynamics displayed and described in this session were developed on a pro bono basis working with Boston's Department of Neighborhood Development at the request of Mayor Menino. Extensions of this work with the Mayor's office and additional housing agencies are underway.