Building Info

Medical Office Building – Hospital Sisters Health System

O’Fallon, Illinois | 141,625 Square Feet

The 14-hospital Hospital Sisters Health System selected Landmark to develop this mixed-use Medical Office Building. 
 
The MOB and a 144-bed replacement hospital are being developed concurrently on a greenfield site in O’Fallon, Illinois.
 
Landmark is the full-service developer and will be the property manager. Landmark is the sole owner of the MOB.

A Joint Venture between Southern Illinois University and the Hospital Sisters Health System selected Landmark to develop a 91,620 square foot Medical Office Building on the campus of the 439-bed St. John's Hospital in Springfield, Illinois.  

  • 50,180 SF of physician office space
  • 10,204 SF physical therapy center
  • 17,550 SF cardiac center
  • 4,420 SF imaging center
  • 3,622 SF pain management center
  • 2,424 SF infusion center
  • 11,023 SF laboratory
  • 23,943 SF for residency program
  • Administration center on the first floor
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