Seattle actually has some houseboats [1]. Not sure total numbers, but they are definitely a very small drop in the bucket compared to all other housing forms.

Seattle actually has some houseboats [1]. Not sure total numbers, but they are definitely a very small drop in the bucket compared to all other housing forms. Probably more impactful in terms of population numbers is the similar "apartment block over water" which popped up in Seattle a few decades back and are still around. ~5 stories and over water is a lot more people than a row of houseboats. [1] https://www.google.com/maps/place/Floating+Homes+Association/@47.6387207,-122.3293724,706m/data=!3m1!1e3!4m5!3m4!1s0x0:0xd59ce2356327fd0e!8m2!3d47.6407022!4d-122.3298387!6m1!1e1 https://www.google.com/maps/place/Floating+Homes+Association...