4220 Duncan - St. Louis MO

Written By Serhii Chrucky
View of the entire 4220 Duncan building in St. Louis, MO, from the south.

4220 Duncan, designed by HOK, is a multi-tenant commercial building in St. Louis' Cortex Innovation Community. The building's most distinctive feature is its iridescent facade, which shifts in color and reflectivity depending on lighting conditions. This presented a photographic challenge, requiring multiple visits to show this quality in full effect. Situated in a formerly underused industrial area, 4220 Duncan houses office and lab space for entrepreneurs, researchers, and tech companies, as well as anchor tenants like Microsoft. The design aims to create a visually engaging presence within the surrounding area that is still undergoing a transformation.

 
Detail view of the entry to 4220 Duncan, showing the iridescent facade and landscaping.
View of the main facade and plaza of 4220 Duncan in the Cortex Innovation Community.
Interior view of 4220 Duncan, showing the CIC space and a second-story staircase.
View of the interior lobby at 4220 Duncan.
View of a common workspace area inside 4220 Duncan.
Interior view of an arcade designed for coworking at 4220 Duncan.
View of 4220 Duncan, showing the landscaping and a portion of the iridescent facade.
Detail view of the facade materials on the east side of 4220 Duncan, with Microsoft signage visible.
Serhii Chrucky https://serhiichrucky.com
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