How new?? I've never visited any building heated by steam or hot water, that wasn't 50+ years old.
However, I have read case studies of buildings built in the 1970s that used boiler heat. It is my quess that boiler heat fell out of use in the early 1980s, from then on it was all electric heating elements in new construction. Am I right?
This is simply my theory, from the limited obsevation I have as a high school student. Any additional input is appreciated!
Electric heat is (and should be) one of the least used heating types you will find.
Steam, as dangerous as at can be if not respected is very efficient and effective. Well at least when compared to strip heat....
If a day goes by and you have learned nothing, I hope you got a lot of sleep.