GOD'S WORD® Translation
It took Solomon 20 years to build the two houses (the LORD's house and the royal palace).

American Standard Version
And it came to pass at the end of twenty years, wherein Solomon had built the two houses, the house of Jehovah and the king's house,

Berean Study Bible
Now at the end of the twenty years during which Solomon built these two houses, the house of the LORD and the royal palace,

Douay-Rheims Bible
And when twenty years were ended after Solomon had built the two houses, that is, the house of the Lord, and the house of the king,

English Revised Version
And it came to pass at the end of twenty years, wherein Solomon had built the two houses, the house of the LORD and the king's house,

King James Bible
And it came to pass at the end of twenty years, when Solomon had built the two houses, the house of the LORD, and the king's house,

World English Bible
It happened at the end of twenty years, in which Solomon had built the two houses, the house of Yahweh and the king's house

Young's Literal Translation
And it cometh to pass, at the end of twenty years, that Solomon hath built the two houses, the house of Jehovah, and the house of the king.

1 Kings 9:10 Additional Translations ...