Simplify the following text for a Grade 5 native English-speaking person.
Original: The Â # 150 proceeds from the first house financed the building of the next two houses on the same plot of land , one of which was kept by the Laing Family to live in .
Simplified: The Â # 150 proceeds from the first house financed the building of the next two houses on the same plot of land . One of these houses was kept by the Laing Family to live in .