2 Chronicles 8:1

And it came to pass at the end of twenty years, wherein Solomon had built the house of the Lord, and his own house,

Cross-reference

1 Kings 9:10 records the same twenty-year milestone—Solomon finished both temple and palace.

1 Kings 7:1 notes that Solomon's own house took thirteen years to build, providing a detail behind the twenty-year span.

Ecclesiastes 2:4 has Solomon reflecting on his great building projects—parallels the completion of temple and palace recorded here.