A toilet apparatus which improves the visibility of a floor surface of a toilet room is provided. This toilet apparatus is provided with a flush toilet which is supported in a floating state from a floor surface of a toilet room; and an illuminating unit provided in a lateral width of the flush tower below the upper end of the flush toilet and behind the front end of the flush toilet for irradiating light forward from a space between the flush toilet and the floor surface to illuminate the floor surface.
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