Medical/Office Building in Carol
501-517 Thornhill Drive Carol Stream, IL 60188
For Sale
$3,472,651
COMMERCIAL - Carol Stream, IL
Property Size18,430 SF
Lot Size3.46 Acres
Price / SF$188.42
Days on Market105
Property Features for 501-517 Thornhill Drive
General Information
- Property type
- Commercial Sale
- Property subtype
- Office
- Zoning
- OFFIC
- Standard status
- Active
- APN
- 0504312001
- Size
- 18,430 SF
- Lot size
- 3.46 Acres
Taxes and HOA fees
- Tax Year
- 2024
- Tax Annual Amount
- 32170
Utilities
- Cooling system
- Central Air
Building Details
- Year built
- 1982
- Floors in Building
- 1
- Number of units
- 15
- Building materials
- Brick
Listing Agency:
Keller Williams ONEChicago
(312) 216-2422
Listed By:
David Piotrowski · License #475155906
(312) 216-2422
Added: Apr 10
Changed: Apr 15
Last Checked: Jul 23 at 8:06PM
MLS# 12612071
Copyright © 2026 Midwest Real Estate Data, LLC. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
Investment Insights
Based on property information with market context.
The West Building at Mona Kea Medical Park, located at 501-517 Thornhill Drive in Carol Stream, Illinois, is a multi-tenant office and medical building. It is positioned near the intersection of Schmale Road and Thornhill Drive, offering convenient access to nearby retailers such as Home Depot and Chase Bank, and surrounding commercial corridors. The building provides a variety of suite sizes, ranging from 1,174 sq ft to 18,430 sq ft, suitable for office or medical users. Both main level and lower level spaces are available. Suites feature multiple private offices and exam rooms, making the property well-suited for medical, therapy, professional office, and service-related businesses. Approximately 3.5 parking spaces per 1,000 square feet are available. Ownership owns 10 PIN between both building about 38,161 total sq ft. The property is located in DuPage County, Illinois, and has a lot size of 3.46 acres.
Key Highlights
- Versatile suite sizes from 1,174 sqft to 18,430 sq ft, suitable for office or medical tenants.
- Convenient location near Schmale Road and Thornhill Drive, offering easy access to commercial areas and retailers.
- Well‑suited for medical, therapy, professional office, and service‑related businesses, featuring multiple private offices and exam rooms.
Financial Insights For Office B
Simulate Cap Rate and NOI
NOI Build-Up
- Vacancy
- income lost from leasable area expected to sit empty during the year — subtracted from gross rent.
- EGI (Effective Gross Income)
- gross rent minus vacancy losses — the realistic income before paying operating costs.
- OpEx (Operating Expenses)
- recurring costs to operate the property (property tax, insurance, utilities, maintenance, management) — excludes financing and capital improvements.
- NOI (Net Operating Income)
- income a property generates after operating costs but before financing and taxes.
| Component | $ | $/SF |
|---|---|---|
| Gross rent | $451.2k | $24.48 |
| − Vacancy | −$112.3k | −$6.10 |
| EGI | $338.8k | $18.38 |
| − OpEx | −$84.7k | −$4.60 |
| NOI | $254.1k | $13.79 |
18,430 SF · lease $24.48/SF/yr · vacancy 24.90% · expense 25.00%
Alternative Uses
Best Use
Office B
$3.63M
$3.18M – $4.24M
NOI $254,119 @ 7.0% cap · market cap 7.32%
Second Best
Healthcare Medical
$3.49M
$3.05M – $4.07M
NOI $244,161 @ 7.0% cap · market cap 7.03%
Theoretical Best
Office A
$6.36M
$5.57M – $7.42M
NOI $445,413 @ 7.0% cap · market cap 12.83%
Zoning and permitted uses should be independently verified with local authorities.
Property Analytics
Property Profile
Location Intelligence
Current Use by Public Records
Medical Office Space
Similar Off Market Nearby
- Knoll Animal Hospital — 565 E St Charles Rd, Carol Stream, IL 60188
FAQs
What type of property is this?
Medical Office Space - Multi-tenant building suitable for medical, office, and service-related businesses.
Where is this medical office space located?
The property is located at 501-517 Thornhill Drive Carol Stream, IL.
What is the asking price?
The asking price for this property is $3,472,651.
What are key features of this property?
This property features: Versatile suite sizes from 1,174 sqft to 18,430 sq ft, suitable for office or medical tenants.; Convenient location near Schmale Road and Thornhill Drive, offering easy access to commercial areas and retailers.; Well‑suited for medical, therapy, professional office, and service‑related businesses, featuring multiple private offices and exam rooms.
