The Wilhelmina Cullen Admission Center opened in 2009, moving the admissions office out of the Roy and Lillie Cullen Building. It is Southwestern's first "green" building and was designed to receive Gold LEED certification. Some of the building's features include a bamboo floor in the lobby area, skylights in the center of the building, solar-powered sink faucets and reflective roof shingles. Southwestern plans to turn the area in the original Cullen Building formerly occupied by the Admission Office into a museum. The Admissions Center was named after Wilhelmina Cullen, the daughter of Roy and Lillie Cullen.