06/04/2026
At Slingshot, innovation and creativity feed our urbanist souls. That’s why we’re thrilled to bring a new single-stair building design that will bring modern multi-family housing and thoughtful middle infill development to an established neighborhood without the bulk of a traditional apartment building.
Instead of multiple stairwells, these multi-family residential buildings are designed around one central staircase, paired with enhanced fire-safety strategies. The result: smarter, more efficient housing density that fits naturally into existing neighborhoods. Infill at its smartest!
This design solution allows four units on a level, up to three stories tall. Here’s a look at this type of architecture, which we’re currently bringing to life in the Des Moines metro.
“This helps strike a balance through scale and density to help cities transition as their downtown cores grow,” says Slingshot Associate AIA Krynne Knopik. “By limiting the number of units per floor, we also increase daylight and ventilation because each unit is a corner unit, creating deeper satisfaction in living conditions.”