This is one of several towers within a stones throw of where I lived in my tower for 15 years.  This is an old historic tower that was rotting and falling down.  I was hired to restore the tower so we used as much of the original tower members as possible and rebuilt the tower to the same size and shape as the original.  We enclosed it on the upper level where it serves as a bedroom at the B&B and the enclosed downstairs is a hot tub area for the public.  This can be found on the east end of Ukiah St. in downtown Mendocino, CA.