WHITE PLAINS - An 85-year-old building at White Plains Hospital is set to disappear.

Its demolition marks the start of a major expansion that will double the size of the hospital's Cancer Treatment Center.

"To have to trek to New York City or other places is a lot," said White Plains Mayor Thomas Roach, who completed cancer treatment at the hospital five years ago. "It's a great investment."

Along with the expansion of the cancer treatment center, the other side of the hospital is getting a $100 million transformation of its own.

For extended interviews on the demolition of the building, watch the clip to the left or go to News 12 Extra on Optimum TV channel 612.