The History of Monarch Beach Resort The St. Regis Monarch Beach opened its doors on July 30, 2001, featuring Tuscan-inspired architecture designed by Holmes & Narver, as well as the internationally renowned Spa Gaucin. The grand yet inviting Mediterranean retreat earned consecutive AAA Five Diamond Awards beginning in 2003 and consecutive Mobil/Forbes Five Star Awards beginning in 2007. In 2006, the award-winning Stonehill Tavern, A Michael Mina Restaurant, opened within the resort to critical and local acclaim. In 2015, The St. Regis Monarch Beach turned to Los Angeles-based Rodrigo Vargas Design to begin a $40 million renovation that would reflect the resort’s pristine coastal setting. The reimagined luxury resort debuted on June 1, 2016 as the Monarch Beach Resort, showcasing a sea-inspired palette of cool blues, greens and crisp whites as well as the first Miraval Life in Balance Spa in California.