- The building is connected to the Boji Tower across the street by an underground tunnel.
- The building was originally constructed for the Michigan National Bank across the building from its headquarters to house its mortgage loan department and electronics processing center. It was named the Stoddard Building after the bank's then-president Howard J. Stoddard.
- The Michigan State Senate moved its office into the building in 1978, and they remained there until early 2017 when they completed a move to the nearby Capitol View Building leaving the Farnum Building vacant.
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