Former Google CEO sells Silicon Valley mansion for $20 million-plus

ATHERTON — A mystery buyer has bought a vast park-like Silicon Valley estate and mansion from Google’s former top boss for more than $20 million — although the deal closed for less than the asking price.

The new owner of the Walsh Estate in Atherton paid $22.5 million for the property, according to documents filed on June 14 with the San Mateo County Recorder’s Office.