Marketplace at Seminole Towne Ctr stands as a major retail hub in Sanford, FL. The Power Center is situated at WP Ball Blvd.& Towne Center Blvd.. Marketplace at Seminole Towne Ctr first opened in 2005. Covering 493,571 sqft. of retail space, Marketplace at Seminole Towne Ctr hosts roughly 45 individual stores and outlets.