Right. That's what I was using when I was playing with the pluto data in openGl. Unfortunately/Fortunately some of you other programmers are much better than me at displaying this stuff in web apps.

MapPLUTO's footprints aren't for the buildings, but rather the boundaries of the property. It's a big shapefile for each borough. Totally worth exploring. It's got an insanely detailed metadata breakdown that explains a ton of the eccentricities.

As for the dates, most are guesses. If you plot the dates, you see they're overwhelmingly years that end in 0.