I wonder if... I think it looks too delicate, but I'll check... Nope, I was DECADES and five architectural styles wrong.
It's got a Washington DC look to it... OK, yup. It is in DC but the one "author" has no clue what it is. Almost looks like it might be Justice in the pediment. So, is it the Supreme Court? Nope, that's got big imposing temple porch.
It is currently "Interstate Commerce." Look to
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near the center of the pic, two blocks east of The Ellipse.
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places context and larger building form.
Your building look brand spanking new and ICC was established in 1887. It may have been built for ICC, guessing by the timing.
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Part of the Federal Triangle Complex
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nice aerial.