In 1891, Henry Miller founded a national organization for electricians at a convention held in his house in St. Louis with the local union being the first to join.

[3] The front of the building is dominated by seven blue painted beams that create exaggerated vertical fins that continue past the parapet to rise above the roofline.

[7][8] The shorter back of the building mirrors the front with white panels in six bays, each with a double door to allow quick access to the parking lot.

[3] For the interior, the lower main entrance contains imitation marble walls and a terrazzo floor featuring the logo of the union.

In contrast, the upper floor consists of a single-span meeting hall that can accommodate 900 people with a stage and concession stand on the periphery.