Genesis 47:20

And Joseph bought all the land of Egypt for Pharaoh
Not for himself, nor did he entail it on his posterity, but for Pharaoh, who became sole proprietor of it:

for the Egyptians sold every man his field, because the famine
prevailed over them;
everyone that had a field sold it to buy bread for his family, so great was the famine; no mention is made of their houses, either because these went with their lands, or they were so mean that they were of little account, and would scarce bear any price; for as Diodorus Siculus ^F8 reports of the Egyptians, they were less careful of the structure of their houses, and exceeded all bounds in the magnificence of their sepulchres:

so the land became Pharaoh's;
not only with respect to dominion and government, so it was before, but with respect to property; before, every man's field, and garden, and vineyard were his own, and he was in possession thereof for his own use, but now being sold, were Pharaoh's; and they held them of him, and paid a rent for them in a manner hereafter directed by a law.