We had a Sgt at Fort Bragg who had one like a trailer on a hull that he tied up to a farm on the Fear River and paid the farmer an access fee. When the USAF transfered him they paid to move the houseboat as if it was a house trailer. Lucky for him the next duty spot was Florida and not Maine!
I saw a two story one with a spiral staircase that went out the top at a boat show and was thinking of buying it to dock in Ocean City NJ but never followed thru :(
I saw one struggling while I was out sailing, houseboats with their slab sides can’t be moved in a wind!