There’s this incredible house in Los Angeles that was once a part of one of the city’s first gated communities. Known as the Doheny Mansion, the house is now a part of the Mount St. Mary’s University campus. There were once around 20 large houses owned or lived in by wealthy families in the Chester Place and St. James Park area, about a mile from downtown Los Angeles. Many of the houses have been lost to time or demolished, but a few survive like a Tudor-style house once lived in by…