Mark is a very rich man. He has a family. He wanted a new home for them. So, he bought a house in a town called Palo Alto.
But Mark did not buy just one house. He bought many houses on the same street. He wanted to make one very big home. His idea was to have a lot of space for his family.
This made problems for his neighbor. A neighbor is a person who lives next to you. The new, big home created a lot of noise. The streets became very busy with workers and trucks. The people living there were not happy with the changes.