Wisdom hath builded her house, she hath hewn out her seven pillars:
2 She hath killed her beasts; she hath mingled her wine; she hath also furnished her table.
3 She hath sent forth her maidens: she crieth upon the highest places of the city,
Proverbs 9:1-3 KJV
Folly is personified later on in Chapter 9 as a foolish woman that has her own house too.
13 A foolish woman is clamorous: she is simple, and knoweth nothing.
14 For she sitteth at the door of her house, on a seat in the high places of the city,
15 To call passengers who go right on their ways:
Proverbs 9:13-15 KJV
So you have wisdom in her house (9:1) and a foolish woman in her house (9:14).
There is no need to interpret either of these passages as referring to any actual persons.