Helen Mannea has experience designing a wide variety of project types including educational, public, healthcare, recreation, correctional, assembly, entertainment, hospitality, commercial, retail, industrial, and residential facilities. Some of her representative projects include a technology building for Hillsboro Community College, libraries for Dallas and Clermont counties, a medical center addition for Children's Hospital in Dallas, a health club for a Jewish community center, and office renovations for a Sheraton hotel in Arlington, Texas. She has over 30 years of experience in architecture and interior design.