Practically any bathroom can be turned into a wet room no matter where it is situated in the home, on account of the flexibility a wet room system provides.
No restrictions exist regarding the size of the showering area, so even very compact bathroom spaces can be transformed into small wet rooms. However, it is recommended that a surface area no smaller than 1.5m x 1m is used as a basis for a wet room installation.
For further inspiration, take a look at our blog, How To Introduce Small Wet Room Ideas To Your Home.