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Highlights

  • 43-acre wooded campus located just west of Chicago in Lemont, Illinois.
  • Designed for behavioral health and treatment programs, including mental health and substance use services.
  • Includes on-site conference facilities, outdoor amenities, and ample surface parking.
  • 192-bed residential healthcare facility with campus-style layout and multiple buildings.
  • Accessible location with connectivity to Interstate 55, Metra’s Heritage Corridor Line, and Midway Airport.

All Available Spaces(2)

Display Rental Rate as

  • Space
  • Size
  • Term
  • Rental Rate
  • Space Use
  • Build-Out
  • Available
  • 1st Floor
  • 70,666 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Medical
  • Partial Build-Out
  • Now
  • Lease rate does not include utilities, property expenses or building services
  • Can be combined with additional space(s) for up to 141,332 SF of adjacent space
  • Space is in Excellent Condition
  • 2nd Floor
  • 70,666 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Medical
  • Partial Build-Out
  • Now
  • Can be combined with additional space(s) for up to 141,332 SF of adjacent space
Space Size Term Rental Rate Space Use Build-Out Available
1st Floor 70,666 SF Negotiable Upon Request Upon Request Upon Request Upon Request Medical Partial Build-Out Now
2nd Floor 70,666 SF Negotiable Upon Request Upon Request Upon Request Upon Request Medical Partial Build-Out Now

1st Floor

Size
70,666 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Medical
Build-Out
Partial Build-Out
Available
Now

2nd Floor

Size
70,666 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Medical
Build-Out
Partial Build-Out
Available
Now

1st Floor

Size 70,666 SF
Term Negotiable
Rental Rate Upon Request
Space Use Medical
Build-Out Partial Build-Out
Available Now

  • Lease rate does not include utilities, property expenses or building services
  • Space is in Excellent Condition
  • Can be combined with additional space(s) for up to 141,332 SF of adjacent space

2nd Floor

Size 70,666 SF
Term Negotiable
Rental Rate Upon Request
Space Use Medical
Build-Out Partial Build-Out
Available Now

  • Can be combined with additional space(s) for up to 141,332 SF of adjacent space

About the Property

CBRE’s National Behavioral Health Advisory Group is pleased to provide the exclusive offering of Timberline Knolls in Lemont , IL. This picturesque property sits on a 43-acre wooded campus and is located just West of Chicago. Timberline Knolls was formally utilized as multi-specialty residential treatment facility offering services including mental health, SUD and Eating Disorders. Boasting 192 beds, this serene and private environment is ideally suited for operators across all behavioral health services lines that are looking to provide patience with a serene and private experience. The property is close to light-rail, major roads and a plethora of amenities making it accessible for both patients and employees. This facility is being offered vacant for sale or lease and being marked for all inpatient mental health services. The property is being marketed without a defined asking price or rent. Please contact CBRE’s National Behavioral Health Advisory Group directly with any questions.

Property Facts

Total Space Available 141,332 SF
Property Type Health Care
Property Subtype Rehabilitation Center
Building Class B
Building Size 141,332 SF
Year Built 1918
Somewhat walkable
30/100
Exceptionally drivable
100/100
Some public transit
50/100
Moderately bikeable
60/100
  • Listing ID: 40175579

  • Date on Market: 4/30/2026

  • Last Updated:

  • Address: 40 Timberline Dr, Lemont, IL 60439

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