The data is finally in and we can tell you with confidence, dear reader: These condo buildings were the busiest in Boston last year in terms of sales activity. The data, which comes from our pals at PropertyShark, involves closed deals during the 12 months ending Dec. 31. It also covers the median sales price amongst those deals. Which single building had the highest median? Downtown Boston's 45 Province, the luxury condo that could. And which had more sales than anyone? If you don't know, you haven't been paying attention. (O.K., it's Millennium Place.)

· 45 Province: Boston's Big Condo That Could [Curbed Boston]
· Millennium Place: Boston's Best-Selling Luxury Condo in 2014 [Curbed Boston]
· Our Curbed Maps archive [Curbed Boston]