The Southern Building is located at 805 15th Street NW in downtown Washington, D.C. It was constructed in 1912 (addition built 1987) and designed by <a href="https://en.wikipedia.org/wiki/Daniel_Burnham" class="extiw" title="en:Daniel Burnham">Daniel Burnham &amp; Associates</a>. The building was added to the <a href="https://en.wikipedia.org/wiki/District_of_Columbia_Inventory_of_Historic_Sites" class="extiw" title="en:District of Columbia Inventory of Historic Sites">District of Columbia Inventory of Historic Sites</a> in 1964 and is a contributing property to the <a href="https://en.wikipedia.org/wiki/Fifteenth_Street_Financial_Historic_District" class="extiw" title="en:Fifteenth Street Financial Historic District">Fifteenth Street Financial Historic District</a>.
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