San Antonio-based insurer USAA has opened the addition to its Plano office campus.
The 150,000-square-foot office is in Legacy business park, east of the Dallas North Tollway on Legacy Drive.
The new building joins two existing office buildings that previously housed about 400 workers.
USAA says it now has more than 1,200 workers in its offices in Plano and Dallas.
Steve Brown, Real Estate Editor