Berkeley Property Lines Shifting with Earth

The land under Robert Mathews' house in the Berkeley hills has slid about 20 feet since the structure was built in 1916. But property lines do not move, which means that today half of his house seems to sit on his neighbor's land.
"I figure the property line runs right through the middle of the front doorway,'' he said.
Three major landslides in Berkeley and neighboring Kensington are creating a dilemma for residents who, like Mathews, live in the well-populated neighborhoods.