Aviation PROS
24 March 2025
The expansion includes 22 international gates in Concourse Tier 2 in its first phase and a new Concourse Tier 3.
The Metropolitan Washington Airports Authority (MWAA) has selected HOK to design an expansion that will add more than 2.8 million square feet to Dulles International Airport in Northern Virginia, which serves the Washington, D.C., region.
The expansion will begin with the Tier 2 development, extending beyond the Tier 2 Concourse East currently under construction. The design will include a federal inspection services facility for international travelers, with flexibility to accommodate both narrow- and wide-body aircraft for domestic and international flights in future phases.
As part of the overall planning process, HOK will examine all aspects of the airport to enhance operations and elevate the passenger experience to accommodate expected passenger growth. This includes security processing, baggage handling, airline operations, gate requirements and more.
