Is the property inspected after the bathroom is waterproof?

In this case, the property is generally not present and belongs to the owner's own behavior. As long as you don't destroy the water and electricity pipelines and lines at home and the indoor water and electricity, you can change it any way you want.

It is your own freedom, and the property will not interfere. Penetration test is only for waterproofing of toilets and kitchens, and general properties will be present for on-site verification to ensure no water leakage.