Tiny homes have to make efficient use of space and that includes the bathrooms. A tiny house bathroom has to accommodate a toilet, a bath and/or shower, and a sink in a very small amount of space.
Image 31 of 34 from gallery of House / Brugnoli Asociados Arquitectos.
Image 17 of 20 from gallery of Feature House & Apostrophy& Exploded Isometric
Image 17 of 23 from gallery of VIMOB / Colectivo Creativo Arquitectos.