Against the walls of the temple and the inner sanctuary, Solomon built a chambered structure around the temple, in which he constructed the side rooms.
KJV
And against the wall of the house he built chambers round about, [against] the walls of the house round about, [both] of the temple and of the oracle: and he made chambers round about:
ASV
And against the wall of the house he built stories round about, against the walls of the house round about, both of the temple and of the oracle; and he made side-chambers round about.