I spend last weekend explore the new 2.8 EEVEE (dev build) and this scene is result.
download blend file on this link https://db.tt/TM5nrSrQcR
Nice work, could you render one with cycles to compare it?
Very nice example. Where is the shower? 
looks very good.
You dont know what a guests wc is?
…ow - you are right. :o