A $28.5 million retail center deal is one of the latest in Tamarac, a city newly abuzz with real estate activity.

Tamarac’s Sunshine Plaza traded at nearly double its previous price in 2011, appreciating more than $13 million in three years, according to Broward County public records. The seller, GMM Sunshine LLC, paid $15 million for the 245,744-square-foot plaza on more than 19 acres at 4017-4299 W. Commercial Blvd., between State Road 7 and Florida’s Turnpike.