Originally built in 1991, The Texas Children’s Hospital Feigin Vertical Expansion, completed in 2009, converted the existing 12-story ambulatory care center to a 20-story, fully-dedicated, state-of-the art research tower for the advancement of pediatric medicine by adding more than 200,000 square feet for research laboratories. The project included major renovation to over 75% of the building, including the addition of a 900-sf suspended mechanical chase to the rear of the building on 9 of the 12 floors. The renovation included the addition of open-concept laboratory space with fully adjustable high-grade metal casework, a new Class 10,000 Gene Vector laboratory, a BSL-3 laboratory, a BSL-2 laboratory, a P3 laboratory, and a 15,000-SF vivarium with a suspended catwalk system above the finished ceiling to facilitate the service of the intricate mechanical, electrical, and plumbing systems.