DESCRIPTION: Open House at KB Homes “Sienna Trails,” a few miles away from the new Imperial Valley Mall, this boy waved me in, his first day on the job. Sienna Trails, with dozens of houses under construction, is surrounded by former farm fields. Many families, mostly Hispanic, are moving into their new homes today. Balloons are flying, music blares from loud speakers, a temporary playground fills an intersection. Homes are 1,700 - 2,800 square feet on lots about 6,200 square feet, with 3-6 bedrooms. Prices range from $323,000 to $385,000 and up. San Diego is 100 miles away, a 90-minute drive on Interstate 8.