The Koop Group at Berkshire Hathaway HomeServices California Properties in Coronado operates from 101 Orange Avenue, led by Kathy Koop (DRE 00460840) who has sold Coronado real estate since before the Coronado Shores towers and Coronado Cays were completed. Kathy holds a law degree and has earned Chairman's Circle and Legend Award recognition for twenty consecutive years while ranking in the top one percent of all Berkshire Hathaway agents nationwide, with pre-listing renovation scoping coordinated through island contractors including Mark Stangl Construction. Daughters Allison Koop-Rice (DRE 01818903) and Karrie Koop-Gilby (DRE 01465419, University of Colorado Boulder) round out a three-agent family team whose combined Coronado transaction volume exceeds $500 million over the past decade. Kathy's specialization spans all three Coronado Island submarkets—Village, Shores, and Cays—and her legal training adds contract-analysis depth that complements the island's tax-planning infrastructure at firms such as Watkins Rodney R CPA. Highest-value engagements include Coronado Village estate sales, Coronado Shores oceanview penthouse dispositions, Coronado Cays bayfront homes with private dock slips, and new-construction opportunities on the island's diminishing supply of buildable lots in the 92118 market.