Lewisville ISD selected Dallas-based Charter Builders as construction manager-at-risk for $40 million in additions and renovations to Lewisville High School.

The upgrades to the existing high school, founded in 1897, are part of the school district’s plan to provide high-quality educational facilities to serve the growing student population, which is expected to increase by 1,200 to 2,000 new students annually.

Construction will occur in two phases beginning this month. The first phase will add 131,000 sq ft of new space to the campus. The second phase consists of 90,000 sq ft of additions and 69,000 sq ft of renovations.

Construction is scheduled to be complete by August 2012.