PENNSBURG, PENN. – Colliers International has arranged the sale of a commercially zoned land located at the southwest corner of Pennsylvania Route 663 and Northgate Boulevard in Pennsburg. PB Northgate purchased the 7.2-acre property, which is approximately 17 miles south of Allentown, for $2.1 million. The buyer plans to develop a medical office building and retail pad site on the land parcel. Derek Zerfass of Colliers International’s office in Allentown, Penn., represented the undisclosed seller, while Markward Group represented the buyer in the transaction.