Decoration end of the sound, then notice the property requirements rectification, because the basin shift to the bathroom outside But in the drawings of the property clearly marked the basin is moved out.
So you'd better contact the decoration company and the property, the current situation to see what kind of post-processing approach, both to ensure that you normal use, no longer renovated, but also to prevent the occurrence of leakage.
If you do not have reasonable means of handling, do not have to complain to the owners in the future, the developer may go directly to the Housing Authority complained about your illegal decoration, and that time regardless of your decoration responsibility or property regulatory responsibility, you have to rectify
Now the housing construction, generally only in the bathroom and the kitchen to do waterproof treatment, other parts of the house can not be waterproof. Your hand basin after the move, will inevitably face leakage problems. Even if there is nothing in a short time, with your daily use and equipment and equipment aging, long past, after all, there will be problems.
In fact, your contradiction does not exist in the wash basin is displaced. And after the displacement if there is leakage how to solve.