Question: South Coast Plaza is an upscale-luxury goods shopping mall in Costa Mesa, California, its 250 retailers represent the highest concentration of design fashion retail in the U.S, with the second highest sales-volume in California, second only to Westfield Valley Fair, an upscale indoor shopping mall in San Jose, California, United States, owned by which organization?
Sentence (from "South Coast Plaza"): The national average is 411 $/sqft .
Relevant evidence: No