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Since its founding, SIGAL has built and renovated some of Washington's most notable commercial structures. Regardless the scope and magnitude, SIGAL's team brings a level of dedication and professionalism that delivers a variety of Class A, LEED-certified buildings, schools and recreation centers, research/manufacturing facilities, and many more.

Representative Projects Location SF
Bell Atlantic World Headquarters Washington, DC 800,000 SF
Pennsylvania Plaza Washington, DC 670,000 SF
Worldgate Plaza Buildings 11 & 12 Herndon, VA 650,000 SF
The Tower Building at Tower Oaks Rockville, MD 580,000 SF
One Metro Center Washington, DC 500,000 SF
Reagan National Airport Garage Expansion Washington, DC 500,000 SF
425 Eye Street NW Washington, DC 450,000 SF
Woodrow Wilson High School Washington, DC 400,000 SF
Woodland Pointe Herndon, VA 318,000 SF
Evening Star Building Washington, DC 300,000 SF
Bowen Building Washington, DC 295,000 SF
Marriott Residence Inn Alexandria, VA 257,000 SF
Millennium Building Washington, DC 256,000 SF
The Bond Building Washington, DC 211,000 SF
1150 18th Street NW Washington, DC 187,000 SF
1331 L Street NW Washington, DC 180,000 SF
Meadow Point at Westfields Chantilly, VA 164,000 SF
The Lofts of Columbia Heights Washington, DC 160,000 SF
MCI Headquarters Washington, DC 150,000 SF
Arlington Skating Facility Arlington, VA 145,000 SF
440 First Street NW Washington, DC 141,000 SF
GWU School of Media & Public Affairs Washington, DC 140,000 SF
Montrose Metro Centre Office II Rockville, MD 130,000 SF
Kilby Elementary School Woodbridge, VA 98,500 SF
Hampton Inn & Suites DC Ballpark Washington, DC 98,000 SF
Discovery Elementary School Arlington, VA 98,000 SF
Chancery of the Republic of Turkey Washington, DC 96,000 SF
Edward Felegy Elementary School Hyattsville, MD 92,000 SF
John and Jill Ker Conway Residence Washington, DC 87,000 SF
Rock Creek Overlook Washington, DC 80,000 SF
NYU Constance Milstein and Family Global Academic Center Washington, DC 75,000 SF
Shirlington Theater and Library Arlington, VA 70,000 SF
AU McKinley School of Communication Washington, DC 62,000 SF
AutoClub Condominiums Washington, DC 62,000 SF
Ft. Dupont Iceplex Washington, DC 62,000 SF
Gallaudet University Living & Learning Residence Hall 6 Washington, DC 60,000 SF
Sunrise Tech Center Reston, VA 60,000 SF
Carlos Rosario International Public Charter School Washington, DC 48,000 SF
NVCC Higher Education Center Sterling, VA 41,600 SF
The Corcoran at 14th Washington, DC 37,000 SF
Institute for International Economics Washington, DC 37,000 SF
The HSC Foundation Washington, DC 34,000 SF
Raymond Recreation Center Washington, DC 24,000 SF
Niro, Inc. - Pharmaceutical Technology Center Columbia, MD 16,100 SF