What We Do

The Committee of 100 advocates responsible planning and land use in Washington, D.C. Our work is guided by the values inherited from the L’Enfant Plan and McMillan Commission, which give Washington its historic distinction and natural beauty, while responding to the special challenges of 21st century development. We pursue these goals through public education, research and civic action, and we celebrate the city’s unique role as both the home of the District’s citizens and the capital of our nation.

Black and white photo showing the building process of the US Capitol building.

Historic Preservation

Protects and preserves the significant historic properties, vistas, landscapes, and archaeology of Washington, DC.

Photo of Lincoln Westmoreland Apartments and Channing E. Phillips Homes.


Promotes an inclusive city by advocating policies and tools that will produce greater housing affordability.

Photo of blooming Lotus plants in Kenilworth Aquatic Gardens in Washington, DC.

Parks & Environment

Preserves parks and open space in Washington, DC, in line with the principles of the McMillan Plan.

Historic map of the City of Washington.


Concerned with the overall physical and economic pattern of Washington, D.C. in terms of land use, public facilities, and transportation routes and systems.

Aerial view of Union Station in Washington, D.C.


Promotes sound planning for commuter and passenger rail, streetcars, underground parking for neighborhood businesses and residents, and billboard and sign control.

Map of the District of Columbia.


Promotes land use policies and practices that are in conformance with the city’s Comprehensive Plan.

Committee of 100
on the Federal City

945 G Street NW
Washington, DC 20001
(202) 681-0225

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