Making the impossible possible. Making dreams a reality.
Leveraging our revolutionary system to create onsen spa infrastructure unlike any other


Many people are unaware that there are actually more than 3,000 different types of hot springs. There is a lot more to spa infrastructure than meets the eye.

At Senon, we plan and design the type of premium-branded onsen spa facilities that everyone wants to visit at least once in their lifetime. We do not mistake eccentricity for originality, nor do we use gimmicks just to be different. Our aim is to design onsen spas that appeal to all five senses—creating baths that feel great on the skin, refresh the body, and soothe the soul.  Collaborating with specialists in a wide range of fields, Senon has put together an unparalleled infrastructure team to deliver a groundbreaking onsen spa development system.