One Union Center
810 1st St NE, Washington, DC 20002
One Union Center is an eleven-story, 191,679-square-foot value-add office building located in the Capitol Hill North/NoMa submarket of Washington, DC.
One Union Center Office Space for Rent
17 Spaces AvailableWorkspace
10th Floor
Size
19,523 SF
Can fit*
1 - 156 PPL
Price
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Workspace
11th Floor
Size
19,523 SF
Can fit*
1 - 156 PPL
Price
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Workspace 
1st Floor
Size
2,305 SF
Can fit*
1 - 18 PPL
Price
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Workspace
2nd Floor
Size
12,917 SF
Can fit*
1 - 103 PPL
Price
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Workspace
3rd Floor
Size
19,523 SF
Can fit*
1 - 156 PPL
Price
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Workspace
4th Floor
Size
19,523 SF
Can fit*
1 - 156 PPL
Price
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Workspace
5th Floor
Size
19,523 SF
Can fit*
1 - 156 PPL
Price
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Workspace
6th Floor
Size
19,523 SF
Can fit*
1 - 156 PPL
Price
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Workspace
7th Floor
Size
19,523 SF
Can fit*
1 - 156 PPL
Price
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Workspace
8th Floor
Size
19,523 SF
Can fit*
1 - 156 PPL
Price
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Workspace
9th Floor
Size
19,523 SF
Can fit*
1 - 156 PPL
Price
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Workspace
Spec Suite A
Size
2,420 SF
Can fit*
1 - 19 PPL
Price
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Workspace
Spec Suite B
Size
1,604 SF
Can fit*
1 - 13 PPL
Price
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Workspace
Spec Suite C
Size
2,610 SF
Can fit*
1 - 21 PPL
Price
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Workspace
Spec Suite D
Size
2,890 SF
Can fit*
1 - 23 PPL
Price
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Workspace
Spec Suite E
Size
3,598 SF
Can fit*
1 - 29 PPL
Price
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Workspace
Typical Floor Plan
Size
19,523 SF
Can fit*
1 - 156 PPL
Price
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*OfficeSpace.com is suggesting this space is suitable for the listed amount of people, based on a calculation of 1 person = 125 SF.
Property Details
Property Type
Office
Property Size
232,126 sqft
Last Updated
8/22/2025
One Union Center location
City
Washington
Neighborhood
Capitol Hill
Zip Code
20002
Market
District of Columbia