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Who We Are

1001 G Street, NW, Suite 700W, Washington, DC 20001
phone 202-393-1999 fax 202-393-0548

Quadrangle Development Corporation is a Washington, DC - based, vertically integrated development firm. Founded in 1971, our varied projects include high-tech urban and suburban office settings, world-class hotels and resorts, multi-family residences and mixed-use retail/office/living environments.

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