I have lived in a 200 sqft room in college (with another person!) and it would have been tight, but pretty decently livable for a single person. You have room f

I have lived in a 200 sqft room in college (with another person!) and it would have been tight, but pretty decently livable for a single person. You have room for a bed, desk+chair, nightstand, TV + couch but not much else. I don't believe the photo in the article shows as much of the place as it could (it's also taken with a fisheye lense to distort the size). Also, living in an apartment with roommates is probably cheaper than living in an ADU by yourself (depending on area); in my area it is about 20% cheaper. You can end up with a larger shared area with a normal sized kitchen and living room. Living in an ADU is really paying a premium for privacy and other benefits of living by yourself.