Charles Ellicott Commentary 1 Kings 9:24

"But Pharaoh`s daughter came up out of the city of David unto her house which [Solomon] had built for her: then did he build Millo." — 1 Kings 9:24 (ASV)

Pharaoh’s daughter came up ... —In 2 Chronicles 8:11 a reason is assigned for this removal: My wife shall not dwell in the house of David king of Israel, because the places are holy whereunto the ark of the Lord hath come. In this passage the notice of her withdrawal is evidently connected with the building of “the Millo” described in 1 Kings 9:15, which perhaps encroached upon her former quarters in the city of David.