Law does not void when construction is done in a old house defects. The reason for this is that there are many old buildings that have been constructed without the use of modern building codes and laws. As a result, these buildings may have defects that would not be allowed under current law.
However, these defects do not necessarily make the building unsafe or uninhabitable. Therefore, the law does not void when construction is done in a old house defects. In addition, many old buildings are grandfathered into current law, meaning that they are exempt from current code requirements. As a result, even if a building has defects, it may still be legal to occupy.
In conclusion, the law does not void when construction is done in a old house defects.