The seven-story building is categorized as being 20th-century
Baroque Revival architecture, a businessman and doctor and Multnomah County's first coroner. He named the hotel for his family and his brother, Colonel
Thomas R. Cornelius. The Cornelius brothers' father founded the town of
Cornelius west of Portland after emigrating to Oregon on the Oregon Trail with
Joseph Meek. and an "opulent" basement cafe. "Ornate wood paneling and trim" was included throughout the building. By at least the 1950s, the hotel had transitioned from being a conventional hotel to an
apartment hotel. The Cornelius housed a
gay bathhouse in the 1960s and 1970s, By at least 1992, the building's residential use had ceased completely, and it became vacant on all but the ground floor. In 2002,
TMT Development, developer
Tom Moyer's real estate company, purchased the property for $2.4 million with plans to renovate the building. The renovated business-class hotel was to be reopened by June 2009 with the name "Alder Park Hotel", following a period where it was home to trespassers for many years after the 1980s. The
2008 financial crisis, however, halted work on the project, as well as Moyer's
Park Avenue West Tower. ==Restoration and reconversion into hotel==