Is it good to put a bathroom on the top of the duplex building?

There is no influence on the building, it depends on your preference.

Feng Shui talks about the modern high-rise upstairs without (ground) gas, and there is nothing to talk about at all, but it is good that the Feng Shui masters live in it. Personally, I believe that adaptation to nature and rational use and transformation is good feng shui.

Actually, you can do it, upstairs doesn't affect downstairs or something. >>>More

It has nothing to do with duplex or not, the main thing is to do a good job of waterproof and leak-proof, and it is highly recommended that the handwashing station be made outside the bathroom when the area is sufficient, and the toothbrush or something is not afraid of infection with bacteria in the bathroom.

In the case of a duplex building, it is better to design two bathrooms. This is more convenient, and you don't have to run up and down.