Greetings, dreamers. I present to you another theory.
So an interest in finding what Mado's apartment in real life may look like lead me to an image, leading me to a blog: http://ablogofsean.blogspot.com/2010/09/urban-ghost-town-bewitching-ugliness-of.html
However, some information on here is… questionable. I don't know about you, but Chiyomachi doesn't seem close to Fukuoka. Or maybe I'm looking at some things wrong.
Anyways, that's not the point. A pic on there gives a good resemblance to our protagonist's building, does it not?
But why is this significant? It's not the same color, and the balconies not the same size. True, but this may just merely be an inspiration.
But this pic must be fake, or somewhere else, right? Well, no. I decided to look into it myself with Google Maps, and the building still exists. Just not in some inactive area of Chiyomachi, from what I can tell. I've recorded the coords used to view the building: 33°36'1.00"N, 130°24'59.77"E
I also took the time to take some pics of it. The one displayed here is one of them, but you can see more pics of the building here if you don't want to search it yourself: https://www.mediafire.com/?6y7idqy9sggma19
Now, does this prove completely that this is the building Mado's apartment building came from? Absolutely not! But the designs to both are rather odd and similar, so it seems plausible to me. Could it be the wrong building? Sure it can. Could I be overlooking it and Mado's apartment is just something Kiki thought of? Yeah, can be true, too. There seems to be little info about the building, as far as I know. But it's quite coincidental, isn't it?
What do you dreamers think?