homeowner; head of a household
Refers to a person who owns a house or is the head of a household. Often used in contexts of property ownership or family responsibility.
彼は若くして家持ちになった。
He became a homeowner at a young age.
As the head of the household, he has the responsibility to support his family.
Compound of 家 (いえ, 'house') and 持ち (もち, 'holder, owner'). The exact historical derivation is uncertain, but the word has been used since at least the Edo period.