Byron Nelson High School is a public high school located in Trophy Club, Texas about 20 miles north of Fort Worth, Texas, in Denton County and opened in August 2009 for the 09-10 school year. It is the second high school in the Northwest Independent School District. It cost around $96 million, making it the 3rd most expensive and state of the art high schools in the state. It is approximately 504,000 square feet, with a 32,000-square-foot courtyard in the middle.