In 1975 when the building was about half complete the Del E. Webb Realty & Management Company a subsidiary of the Del E. Webb Corporation was named the leasing and property manager. The Webb firm also served as project manager to Sundt for the last year of construction. When it was built, it served as the headquarters for Arizona Bancwest, parent company of The Arizona Bank, which (after Arizona passed legislation allowing for interstate banking) was acquired by Los Angeles-based Security Pacific Bank in 1986 (itself in turn acquired by Bank of America in 1992).
In 1975, when the building was nearing completion, Del E. Webb Realty & Management Company, a subsidiary of the Del E. Webb Corporation, became the leasing and property manager. The Webb firm also managed Sundt's project during the final year of construction. When completed, it served as Arizona Bancwest's headquarters, which, after Arizona allowed interstate banking legislation, was acquired by Security Pacific Bank in 1986 (which itself was later bought by Bank of America in 1992).