Like many Californians, Aislyn and Ali Benjamin were priced out of their dream neighborhood. In Danville — a small city east of San Francisco — the median home sale price hit $1.8 million in August, according to Zillow. (1) Must Read But instead of chasing listings they couldn't afford, the couple decided to build a $500,000 accessory dwelling unit (ADU) in the backyard of Ali’s parents’s property in San Ramon, which is next to Danville. "This was the best decision we ever made," Ali told Business Insi ...