ARLINGTON, VA—Transwestern is marketing a three-asset office portfolio in the Ballston submarket on behalf of Dweck Properties.

The portfolio totals over one million square feet and is 87% leased; 66 percent of the portfolio leased to the federal government's National Science Foundation through December 2017. Investors can bid on individual properties or the portfolio as a whole.

"These assets represent an a rare opportunity to assemble critical mass in one of the most dynamic markets in the Washington DC area," Gary Trainor, executive managing director of the Institutional Commercial Group, says in a prepared statement. "Ballston has historically outperformed the balance of the Rosslyn-Ballston Corridor with higher rents, stronger annual rent growth, a lower average vacancy rate, and higher annual net absorption."

The portfolio consists of

• Ballston Metro Center, located at 901 N. Stuart St. It is a 13-story, 235,000-square-foot multi-tenant office building with ground floor retail suites that are currently 47% leased due to a BRAC move-out by the anchor tenant.

• Stafford Place I, located at 4201 Wilson Blvd. It is a 586,878-square-foot, 12-story office building that houses the National Science Foundation until its lease runs out in December 2017.

• Stafford Place II, which is located at 4121 Wilson Blvd. It is an 11-story Class A office building located between the Ballston Metrorail station and the Ballston Common Mall. The 184,548-square-foot office building is 98% leased.