In 1893, all three railways and the city agreed that constructing a new depot would be in the best interests of all parties, particularly with the rise in excursion traffic to local resorts.

Despite the Union Depot name, by the 1930s, the Toledo, Saginaw and Muskegon Railway (being absorbed by the Grand Trunk Western) trains were by that point using a different station in the city.

[2] The Muskegon Union Depot is a two-story Richardsonian Romanesque railroad station with a connected four-story tower and a massive hipped roof.

The walls are constructed from red brick and rock-face sandstone, and the roof eaves flare outward from the main mass of the building.

The side elevations have overhanging roofs, creating deep entry porches that approach the platform in the rear of the building.

[2] On the interior, the main waiting room contains a large ornamental brick fireplace with a wood mantel, and the walls contain quarter-sawn oak woodwork and wainscot paneling with egg and dart trim.