John Gill Commentary 1 Chronicles 15:1

"And [David] made him houses in the city of David; and he prepared a place for the ark of God, and pitched for it a tent." — 1 Chronicles 15:1 (ASV)

And David made him houses in the city of David
With the help of the masons and carpenters Hiram sent him, (1 Chronicles 14:1) , the royal palace is meant, with all the apartments in it, which were many and large, as so great a family he had required, and with all the out houses to it necessary for his servants, and their offices:

and prepared a place for the ark of God, and pitched for it a tent ;
see (2 Samuel 6:17) .