It amazes me that they still stick build houses in Japan. There is such a large manufactured housing industry that does a fantastic job. Don't get me wrong, stick built houses are still great I'm just surprised its still done in the land of efficiency.
That really is a decent size house for Tokyo. My Sister In Law lives in a "large" condo but I have hit my head on a ceiling beam twice. The place is simply tiny. Of course I live in Texas where my 1/4 acre lot is considered small
Post up pics of the house when its done.