A $4.2 million construction loan from Eastern Bank will enable a Concord developer to build a 27,000-square-foot expansion of Bio-Techne’s device manufacturing and support facility at 8 Jackson Road in Harvard.

Developer 8 Jackson Road LLC is expected to complete the project in summer 2020. Eastern also financed the original purchase and development of the property in 2000.

“The current expansion builds upon initial financing Eastern provided to us 20 years ago when we proposed a unique venture for our role at this property as the owner, developer, and property manager,” Bill Jackson, managing member of 8 Jackson Road LLC, said in a statement.

Eastern Bank’s commercial real estate team members Matthew Osborne, Cathy Scherer and Kevin Carpenter advised the developer on the latest transaction.

The property is located within the Innovation and Technology District at Devens, the 4,000-acre business district spanning portions of the towns of Ayer, Harvard and Shirley on the former U.S. Army Fort Devens property.