I lived in an old victorian era walk up in Manhattan NYC for 26 years. I miss it. It was to small, about 250 sq ft, 400 would have been ideal. For one person though, it's enough space, that's not the issue. It's the dystopian no trees high rise thing that sucks. Do the same size apartment in 4 story buildings surrounded by greenery and garden spaces, it's a whole other story.