John Iffrig


Landscape Architect

John Iffrig is a landscape architect with more than 17 years of experience in all phases of the design process including siting, grading, hardscape, irrigation, and planting design. His project experience includes healthcare, senior living, streetscape, schools/higher education, playgrounds, bike trails, commercial, and residential.

John is committed to sustainable design and is passionate about designing aesthetically pleasing and functionally sound landscape plans that focus on the quality of the visitor’s experience, from large-scale master plans down to the details of a planting plan. Throughout every project, John works closely with clients and consultants to develop a professional landscape plan that meets their needs.


  • American Society of Landscape Architects (ASLA)
  • Registered Landscape Architect State of Missouri #2012035130


  • Bachelor of Landscape Architecture, Kansas State University

Representative Work

  • SSM Health Saint Louis University Hospital, St. Louis, MO
  • Washington University School of Medicine Cancer Center, St. Louis, MO
  • SSM Health St. Mary’s Replacement Hospital, Jefferson City, MO
  • City of Ballwin, Vlasis Park Master Plan and Holloway Park Design, Ballwin, MO
  • City of Olivette, Parks Master Plan, Olivette, MO
  • White Flag Church, Master Plan and Sports Camp, St. Louis, MO
  • City Foundry STL, St. Louis, MO
  • Principia College, Campus Master Plan, Elsah, IL
  • John Burroughs School, Campus Master Plan and Implementation, St. Louis, MO
  • Washington Avenue Streetscape, St. Louis, MO
  • Cortex Innovation Community Plaza, St. Louis, MO
  • Laclede Grove, Garden Designs, Lighting, Courtyard and Outdoor Amenities, St. Louis, MO
  • Health First Hospital, Merritt Island, FL