Now Selling from Autumn Valley! Silverstone offers new ranch and two-story houses for sale in Frederick, CO ranging from 1,626 to 2,434 sq. ft. and with up to 5 bedrooms. This new home community extends the historic charm of Old Town Frederick with planned parks, schools, and open spaces, in addition to retail and office developments. Stay connected with an easy commute to Denver, Boulder or Longmont via nearby I-25 or CO- 52. Silverstone residents will appreciate easy access to a number of recreation opportunities, including Saddleback Golf Course, St. Vrain State Park and Colorado National Speedway.