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One Judiciary Square

441 4TH ST NW
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Year Constructed:
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Floor Area: 850,354 ft²

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One Judiciary Square is a high-rise office building at 441 Fourth Street NW in the Judiciary Square neighborhood of Washington, D.C. Designed by architect Vlastimil Koubek, the building has approximately 10 floors and was in built 1990. Between 1992 and 1999, One Judiciary Square housed the offices of the mayor and Council of the District of Columbia while repairs were made to the historic John A. Wilson Building. One Judiciary Square now houses the offices of prominent municipal government agencies such as the D.C. Board of Elections and Ethics, the Office of the D.C. Attorney General, and the D.C. Office of Zoning. In August 2009, it was one of the first government buildings in Washington to be fitted with a green roof. In addition, the city completed a $7.5 million renovation in September 2011 to improve the building's energy efficiency.


Building Type: Office
Status: Other
Census Tract 2010: 5,900
Ward: Ward 2
Anc: ANC 2C
Voting Precinct: Precinct 143
Ssl: 0532 0020
Source Eui: 61
Annual Kwh: 15190517
Energy Cost Per Square Foot: 2.1
Building Data Source:
DC City Government


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Robin Cunningham added 2 images to One Judiciary SquareJul 3rd, 2013
Robin Cunningham added 2 images to One Judiciary SquareJun 26th, 2013
Garrett Kubiak added an image to One Judiciary SquareApr 29th, 2013



Washington, DC US
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