It's well known that the value of a condo is mostly determined by the value of the building. No matter what improvements you make to your Railyard condo unit, it will sell for less on a $/SF basis than a unit in the Austonian. For this reason, we've crunched our full-year 2011 data to see how various buildings performed in terms of realized pricing and appreciation over the last year. If you live downtown, view this as a handy guide to the likely value of your unit.Here is what we learned:- The most expensive projects are . . .