MAST One is a premier three-story Class A office building within the Harbour View submarket in Portsmouth, Virginia. Constructed in 2007, this 59,878-square-foot property offers a contemporary design, quality construction, and a desirable business address. Occupancy currently stands at approximately 78%, with a strong tenant mix including regional medical practices, government agencies, and professional service firms. Tenants include Bon Secours, the U.S. Food & Drug Administration, the Supreme Court of Virginia, and multiple financial and legal offices, creating a diversified and stable income stream. Situated at the corner of Western Freeway (Route 164) and College Drive, the property provides excellent visibility with daily traffic counts of over 51,000 vehicles. MAST One is part of a 148-acre mixed-use development combining residential, retail, and dining, all within a walkable neighborhood setting. The location offers unparalleled access to the broader Hampton Roads region, including Suffolk, Norfolk, Chesapeake, and the Peninsula, making it convenient for clients and employees alike. Additionally, with over 13,000 contiguous square feet available, the property presents both value-add potential and opportunities for owner-users seeking a flagship presence in the market.