Two Austin office buildings have been purchased by a California company. Triple Net Properties LLC bought both the 433,024-square-foot property on 816 Congress in the downtown area, and Avallon, a 318,217-square-foot set of office buildings in the northwest district of Austin. Both properties were purchased from Crescent Real Estate Equities Co for $82.5 million. Crescent itself was bought by Morgan Stanley Real Estate for $6.5 billion.