ANSWER:

This is a form of shirk, minor or major depending on their intention.

There is no problem on you living in that house.

QUESTION: In my country many people when theu built new homes, they slaughter an animal and throw the blood to the house foundations and the likes so this home will have barakah from Allah but not intending it for the jinn and evil stuff. I’ve discovered that my family did the same years back. whats the rule lf me living in a home like this?