The Colonnade Senior Living
O'fallon, IL
- Assisted Living
- Independent Living
- Memory Care
At a glance
- Licensed capacity
- 125 residents
- License
- Assisted Living/Shared Housing Establishment
- Licensed operator
- COLONNADE SENIOR DEVELOPMENT, LLC
- State inspection reports
- 6 on file, latest June 2026
- Illinois Department of Public Health
- Google rating
- 3.9 out of 5 (51 reviews)
Sources for this listing
Details on this page come from these records. Check with the community before you visit.
- Illinois Department of Public Health · Assisted Living/Shared Housing Establishment record a1w3d000000Io1EAAS · checked June 2026
- thecolonnadeseniorliving.com · Community website
- Google Maps · Map listing and reviews · checked October 2026
- Mirador Living · Community profile