City Living, RedefinedComfort, Class, and Connection at The 421 Luxury. Location. Lifestyle. The 421 at College is a boutique, multi-family community offering luxury one-bedroom apartments in the historic Riverbend/Sixth Avenue Corridor of northern Des Moines. Nestled in one of the city’s most charming neighborhoods, The 421 combines comfort, convenience, and class in a peaceful, well-connected