Two-Unit Duplex
For Sale
$259,000
809 White Oak Drive, O Fallon, IL 62269
Residential Income, O'Fallon, IL
Property Size2,040 SF
Lot Size0.21 Acres
Price / SF$126.96
Days on Market48
Property Features for 809 White Oak Drive
General Information
Property type
Residential Multi Family
Property subtype
Other
Subdivision
Fairwood West 6th Add
Elementary school
OFALLON DIST 90
Middle school
OFALLON DIST 90
High school
OFallon
Elementary school district
O Fallon DIST 90
Middle school district
O Fallon DIST 90
High school district
O Fallon DIST 90
Standard status
Active
APN
04-19.0-404-012
Size
2,040 SF
Lot size
0.21 Acres
Taxes and HOA fees
Tax Year
2024
Tax Annual Amount
4053
Utilities
Cooling system
Central Air
Building Details
Year built
1979
Listing Agency:
Landmark Realty
(618) 466-1513
Listed By:
Matt Horn · License #2023007773
(618) 560-8201
Added: Jul 22
Changed: Sep 4
Last Checked: Sep 7 at 6:06PM
MLS# 26037835
Copyright © 2026 Mid America Regional Information Systems, Inc. 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.
This duplex contains two separate residences, each configured with two bedrooms and one bathroom. The property provides 2,040 square feet of building area on a 0.21-acre lot, with central air serving the units. Constructed in 1979, the building is located at 809 White Oak Drive in O'Fallon, Illinois.
Key Highlights
- Two‑unit duplex with 2,040 square feet of building area
- Each unit includes 2 bedrooms and 1 bathroom
- Both units are currently occupied
Financial Insights
Estimated NOI and Cap Rate
NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$16,823
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
6.50%
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$336,460
$336.5K
Cap Rate 7%
$240,329
$240.3K
Cap Rate 9%
$186,922
$186.9K
Market Conditions
NOI Build-Up for 2,040 SF
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.
Gross rent
$25.7K $12.60/SF
− Vacancy
−$1.7K −$0.82/SF
EGI
$24.0K $11.78/SF
− OpEx
−$7.2K −$3.53/SF
NOI
$16.8K $8.25/SF
Area
St. Clair County, IL
Vacancy
6.50%
Lease Rate
$12.60 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$336,460
Cap Rate 7%
$240,329
Cap Rate 9%
$186,922
Alternative Uses
Best Use
Multifamily LT 5
$240.3K
$210.3K – $280.4K
NOI $16,823 @ 7.0% cap · market cap 6.50%
Second Best
Apartment 5plus
$216.5K
$189.4K – $252.6K
NOI $15,155 @ 7.0% cap · market cap 5.85%
Theoretical Best
Office A
$482.9K
$422.6K – $563.4K
NOI $33,806 @ 7.0% cap · market cap 13.05%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Lease Details
2
Residential units
100%
Occupancy
Location Intelligence
Trade Area within ½ mile
128
Businesses Nearby
Explore this area
Business Placement
Demographics for 62269, IL
36,068
Population
14,616
Households
2.5
Avg Household Size
38
Median Age
51%
College-Educated
97%
High-School Grad
29.8 sq mi
ZIP Area
1,210
Density / Sq Mi
$100,167
Median Household Income
$58,724
Median Earnings
$1,258
Median Rent
$274,200
Median Home Value
Market
Vacancy Rate% for Multifamily in Midwest region
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Duplex - Both residences are occupied and equipped with central air.
Where is this duplex located?
The property is located at 809 White Oak Drive O Fallon, IL.
What is the asking price?
The asking price for this property is $259,000.
What are key features of this property?
This property features: Two‑unit duplex with 2,040 square feet of building area; Each unit includes 2 bedrooms and 1 bathroom; Both units are currently occupied
