LEASE LISTING. Office space available for lease in the Barrington Professional Center in Oak Harbor. NNN lease with base lease of $3,170.00 per month and NNN at approximately $2,165.00 per month. 2,161 square feet of professional office space in a premier building and location. Centrally located just off of busy SR20, in the heart of Oak Harbor. The space includes a reception desk and lobby, 6 office spaces, a break room and a bathroom. An elevator serves the building and there are common restrooms in the hallway across from the space. The property has onsite parking, some of which is covered. Bring your business here for a professional environment in a great location.