The phrase 'share a house' is correct and usable in written English.
You can use it when you are referring to two or more people living in the same house. For example: My sister and I decided to share a house in the city.
Edgar and I will never share a house.
Her marriage ended and we now share a house.
He and his lover, Alex, share a house there, as they do in America.
Who wants to share a house with a creature whose only thought is to leave?
He and his wife Laura used to share a house in Kingsbury with another couple.
He and Ms. Chechenkova, who share a house, were not happy with the Yeltsin era.
They share a house in Georgetown where Sinclair Lewis once lived.
His rent was a good deal: just $875 to share a house in White Plains.
The two share a house in North London, and have been partners for 13 years.
It's excruciating to try to share a house with even one other person.
The sisters share a house with two girlfriends from Mysore who work in another back office.
