$675,000 3,600 SF

3505 College Ave, Alton, IL 62002
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This one-story medical office building at 3505 College Ave in Alton, Illinois contains nearly 3,600 square feet of finished space and is configured as two separate areas within the same building, with each space currently occupied. The property includes a large on-site parking lot and features a newer HVAC system. The building is positioned with convenient access from College Avenue, with proximity to Homer Adams Pkwy and I-255.

Ownership intelligence

Who controls the opportunity?

Owner of record from public deeds, plus portfolio, hold profile and investor signals where the data supports them. In the full report.

Owner contacts

Can we reach the decision maker?

Skip-traced phones and e-mails of the owner. Included with the full report.

Debts

What is owed, to whom, and when it comes due

Recorded lenders, amounts and estimated maturities of the owner's loan book — in the full report.

Property tax · 2022

What does the county charge?

$16k

Tax billed · 2022

Assessed value$183k

Assessed land$41k

Assessed improvement$142k

Effective rate8.77%

Value estimate

· Oct 2026

$520k

$468k – $572k

AI approach$375k

CAP approach$540k

Submarket $/SF estimate$500k

NOI build-up

Gross scheduled income$86k

Vacancy & credit loss−$10k

Operating expenses−$19k

NOI · 8.45% cap applied$57k

Realmo valuation models over county records and 19 qualifying comparable sales.

Recently sold

What actually traded nearby?

$77/SF

ZIP average, outlier-cleaned · 138 recorded sales of this use type

Observed band · Q1–Q3$37 – $139

Qualifying comparables19

Cap rate analysis

How does the asset earn?

8.45%

$57k estimated NOI · market benchmarks for this use type

Price anchors at 6 / 6.5 / 7% — in the full report.

Zoning insight

What can be built here?

No zoning code is on file for this parcel. Coverage grows with every catalog release.

JurisdictionMADISON

Location intelligence

Which uses thrive at this corner?

Best fit: Realty agency

Demand heat for this use is drawn on the map · LocInt grid

Demand index

Realty agency20.0

Law Firm12.5

HVAC Service12.1

3505 College Ave Alton, IL 62002

County assessor Recorded deeds · 7 transfers 19 qualifying comp sales Zoning catalog · not on file

Every figure names its source: public record, benchmark, or modeled. Coverage varies by property — thin data is stated as missing, never invented.

Comparables

6 recorded sales · 17 properties nearby

Address Sale price Sold Size

613 Broadway, Alton, IL 62002 $160,000 Jul 2024 3,200 SF

2515 College, Alton, IL 62002-4704 $550,000 Feb 2024 3,370 SF

528 Henry, Alton, IL 62002-2611 $89,000 Nov 2020 3,461 SF

2716 Cor, Alton, IL 62002-5328 $80,000 Jan 2020 3,600 SF

3555 College, Alton, IL 62002-5009 $270,000 Aug 2019 4,800 SF

305 State, Alton, IL 62002-6134 $90,000 Dec 2018 3,504 SF

Sale prices and dates as our records hold them, one row per building. A deed can cover more of a building than the size shown, so read the price against the size rather than dividing one by the other.

Comparable nearby

Value Estimation
$380,000

3,600 SF

510 6th St

OFFICE (GENERAL)

510 6th St, Alton, IL 62002-3602

View Details
Value Estimation
$275,000

3,504 SF

305 State St

OFFICE (GENERAL)

305 State St, Alton, IL 62002-6134

View Details
Value Estimation
$220,000

3,247 SF

224 Broadway

OFFICE (GENERAL)

224 Broadway, Alton, IL 62002-6219

View Details
Value Estimation
$435,000

2,929 SF

4435 Alby St

OFFICE (GENERAL)

4435 Alby St, Alton, IL 62002-5916

View Details
Value Estimation
$505,000

4,800 SF

3555 College Ave

OFFICE (GENERAL)

3555 College Ave, Alton, IL 62002-5009

View Details
Value Estimation
$220,000

4,840 SF

626 Broadway

OFFICE (GENERAL)

626 Broadway, Alton, IL 62002-6308

View Details

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