When examining photos of Japanese houses, one frequently notices a recurring space with tatami mats, often slightly elevated and integrated into the public areas of the home. This is the washitsu, or Japanese-style room: a traditional, multipurpose space still commonly found in modern residential architecture. Used for activities ranging from reading and sleeping to hosting a family altar, its versatility is central to its continued relevance. This article explores the Washitsu's layout and meaning, beginning with its historical origins to better understand its role and interpretation in contemporary Japanese homes.