A neutral palette teamed with white sanitaryware is a classic combination that will never date. Add a contemporary touch with a single large-scale tile design for the floor and walls to unify the different zones within the space and incorporate “future-proof” furniture such as handrails and shower seats with a modern aesthetic that are designed to make bathing safer.
When designing a modern space, the first step is to get rid of (or at least hide) any unneeded clutter. Once the room is cleared, add a few multifunctional pieces. Be sure that every element you bring in has a clearly defined purpose in addition to driving home your modern aesthetic. Carefully distribute items throughout the room so that it feels balanced.