GILBERTSVILLE, PA. — HFF has brokered the $5.9 million sale of a single-tenant retail building in Gilbertsville. The building was completed in 2015 and is leased to convenience retail store chain Wawa. The 2.7-acre property is located at 1111 Grosser Road, approximately 42 miles northwest of Philadelphia. Marc Mandel and Steve Schrenk of HFF represented the buyer, a private investor, in the transaction. The seller was undisclosed.