SAN DIEGO — Plaza Del Norte has acquired The Courtyard I, a 50,405-square-foot office building in the Sorrento Mesa submarket of San Diego, for $9.2 million. The asset is located at 6480 Weathers Place. It was 68 percent leased at the time of sale. The three-story office building was built in 1989. Peter Curry and Brooks Campbell of Cushman & Wakefield represented the 1031 buyer. The firm’s Mark Avilla, Bill Cavanaugh and Mike Novkov represented the seller, Courtyard Mira Mesa LLC, in this transaction.