Those who own a tool but do not know how to use it do not need it. So those who have a tool they don’t know what to do get rid of it. Someone who owns a lot of things, but doesn’t use them, doesn’t actually own them. So it is permissible for the poor to use unused houses. It’s economical. The economy is to use that is already done. The rich man owns this house. But what good is it to him if he doesn’t use it ?
Meditate about that you’re not using. Why not sell it or give it away ?