It was a year of one-upmanship for Los Angeles’ high-end housing market. Trophy estates in prized Westside pockets twice shattered the county (and state) price record, while markets such as Hollywood Hills West showed that big things may be in store in 2020 after recording their highest sales in about a decade. Of the top single-family home sales, more than 30 surpassed the $20-million mark in 2019, according to Property Shark. Among those were six sales north of $70 million and three sales of $100 million or more. Here’s a closer look at L.A. County’s biggest sales of the year. Once offered for as much as $350 million, the legendary Chartwell estate of late Univision founder A. Jerrold Perenchio sold in December to media heir Lachlan Murdoch for $150 million — roughly a 57% discount from the original asking price. Still, the nine-figure transaction was among the highest prices ever paid for a home in the United States and a new high-water mark for California. Known to television viewers as “The Beverly Hillbillies” mansion, the Sumner Spaulding-designed French neoclassical-style chateau sits on 10 acres surrounded by manicured gardens, a tennis court, a 75-foot swimming pool an...