Often a new design idea lies at the intersection of old ones, such as this interior swimming pool design by Kostalia that does not clearly fit the definition of a swimming pool nor that of a soaking tub.
An asymmetrical form, underwater illumination, hidden rim drainage for a flat-to-the-floor modernist appearance and other features make this seem almost like an elegant pool one would find at a luxury spa.
However, its residential context and small size make it as comfortable and cozy as a conventional bathtub. The ultimate idea driving this design is related to elevating the indoor tub or small pool beyond its functional or ritual status, driving it to serve as a truly relaxing and self-contained space with a variety of available sensory experiences.
In short, this combination ‘pool tub’ is designed to bridge the gap between pools and tubs, providing the elegance and luxury of the former alongside the functionality and accessibility of the latter.