Closed, but it looks like the city is accepting bids for companies to run the hotel.

Review
*CLOSED* Sasayama-sou is a small hotel restaurant and conference center in a park a short distance from the center of Sasayama. The small bath here is quite pleasant and while not really one to go out of your way for it's definitely an option if you find yourself in the area.
The small rotenburo has a great garden view combined with the greenery of the garden peaking over the fence is some great scenery.
The spring water is actually brought in from Konda-cho where Nukumori-no-sato is located and not from a well on site.