Why do they call it a "building"? It looks like they're finished. Why isn't it a "built"?

I'm not entirely sure what this building is used for, all that I know that it looks too haphazardly arranged for my liking. It’s all jutting edges and there are too many windows where the sun is completely blocked out. Looking at it closely, for some reason my mind slips into a gear that I like to call "New York Taxi Guy” it’s still me, but I feel the need to express myself through an imagined character

"You wanna know what I think? Lemme tell ya what I think. I think that they should knock it down and build a great big waterslide. Yeah, a waterslide, that's right. A really curly wurly one that goes on and on and on. With a theme. Maybe convicts. Yeah, convicts, that’s the ticket. They wanna tap into that whole Van Diemen’s Land convict vibe.

But it’ll never happen. Nuthin’ ever happens in this goddamn place. The problem with this town and these goddamn people is that they just don't dream big enough. No sense of the possibilities. And it’s a goddamn shame, that’s for sure."