Single-Story Medical Office Building

3505 College Ave Alton, IL 62002

Claim this Listing
For Sale
$675,000

One-story building divided into two occupied spaces with finished interior area, newer HVAC, and a large parking lot.

Property size:
3,600 SF
Price / SF:
$187/SF
Added:
Jun 29, 2026
Days on Market:
13
Last Refresh:
Jul 10 at 3:36 am

Property Features for 3505 College Ave

General Information

Standard status
Active
Size
3,600 SF

Listing office Tarrant and Harman Real Estate and Auction Co

Listing date Jun 29, 2026

Source Exprealty

Displayed information is deemed reliable but is not guaranteed and should be independently verified.

All listing content including descriptions, pricing, images are the copyrighted material of Tarrant and Harman Real Estate and Auction Co


Investment Insights

Based on property information with market context.

This one-story medical office building offers nearly 3,600 square feet of finished space and is currently divided into two separate spaces, with both areas occupied. The property includes a large parking lot and features a newer HVAC system.

The building is located at 3505 College Ave in Alton, IL, with convenient access from College Avenue. It is also close to Homer Adams Pkwy and I-255.

Showings are available by appointment only. The existing two-space layout and occupancy may be of interest to investors or owner-users seeking a turnkey commercial asset.

Key Highlights

  • One‑story commercial building divided into two spaces; both are currently occupied
  • Nearly 3,600 sq ft of finished interior space
  • Large parking lot included

Local 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 $86.4k $24.00
− Vacancy −$10.4k −$2.88
EGI $76.0k $21.12
− OpEx −$19.0k −$5.28
NOI $57.0k $15.84
3,600 SF · lease $24.00/SF/yr · vacancy 12.00% · expense 25.00%

Alternative Uses

Best Use
Office B
$814.6K
$712.8K – $950.4K (±1% cap)
NOI $57,024 @ 7.0% cap · market cap 8.45%
Second Best
Healthcare Medical
$613.1K
$536.5K – $715.3K (±1% cap)
NOI $42,917 @ 7.0% cap · market cap 6.36%
Theoretical Best
Office A
$981.3K
$858.6K – $1.14M (±1% cap)
NOI $68,688 @ 7.0% cap · market cap 10.18%
Zoning and permitted uses should be independently verified with local authorities.

Property Analytics

Property Profile Location Intelligence

Current Use by Public Records

Next Step Foot ... Physician Next Step Foot ... Physician Jacob Lamb Physician WALK HEALTHY TOPICAL ... Department Store

Suggested Use

Real Estate Agency Big Box & Wholesale Store Restaurant HVAC Service Building Supply Spa & Massage Center Hair Salon Nail Salon Law Firm Parking Lot & Garage

Zoning and permitted uses should be independently verified with local authorities.

Similar Off Market Nearby

  • Formea Animal Hospital — 1639 Main St, Alton, IL 62002

FAQs

What type of property is this?
Medical Office Space - One-story building divided into two occupied spaces with finished interior area, newer HVAC, and a large parking lot.
Where is this medical office space located?
The property is located at 3505 College Ave Alton, IL.
What is the asking price?
The asking price for this property is $675,000.
What are key features of this property?
This property features: One‑story commercial building divided into two spaces; both are currently occupied; Nearly 3,600 sq ft of finished interior space; Large parking lot included
Contact an agent
More about this property
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