The south station wall has a collection of 1,264 handmade terra cotta tiles carved in the shapes of leaves, vines, and flowers; the tiles, designed by Mackie, are arranged from the mezzanine level downwards, as if forming the roots of Westlake Park above. Between the mezzanine and platform, Scuri's 40 ceramic tiles feature geometric patterns found in clothing and other garments. The station's stairways and surface entrances are inscribed with quotes from University of Washington professor Caroline Ober, artist Mark Tobey, and retailer Silas Munro. On the corner of Pine Street and 5th Avenue was a granite street clock shaped like a question mark, designed by artist Bill Whipple; it is planned to be relocated in 2023 to Pike Street and 4th Avenue as part of a swap with a historic Ben Bridge Jeweler clock.
