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Updated Duplex with Garage
For Sale
$374,999

502 S Linn Avenue, Wentzville, MO 63385

Two-unit residential property with updated interiors, a large yard, garage, and on-site parking near downtown amenities.

Property Size2,036 SF
Days on Market71

Property Features for 502 S Linn Avenue

General Information

Standard status Active
Size 2,036 SF
Property subtype Residential Income

Taxes and HOA fees

Annual Taxes $2,369

Building Details

Building Size 2,036 SF
Year Built 1900
Units 2
Listing Agency: Trelora Realty, Inc
Listed By: Christopher Stjernholm · License #6005490
Source: Century21laclede
Added: Jun 9 Changed: Aug 17 Last Checked: Aug 17 at 11:56PM

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 Trelora Realty, Inc

Investment Insights

Based on property information with market context.

Built in 1900, this duplex at 502 S Linn Avenue in Wentzville features spacious unit layouts and updated finishes. The property is reported as 100% occupied and includes a garage, large yard, and ample parking.

Recent improvements include a new roof and fresh exterior paint completed in 2026. The property is near downtown restaurants, shopping, and major commuter routes, providing convenient access to local amenities and transportation corridors.

Key Highlights

  • Duplex with spacious layouts and updated finishes
  • 100% occupied at the time of listing
  • New roof and fresh exterior paint completed in 2026

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
$21,992
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
5.86%
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%
$439,840 $439.8K
Cap Rate 7%
$314,171 $314.2K
Cap Rate 9%
$244,356 $244.4K
Market Conditions
NOI Build-Up for 2,036 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
$33.0K $16.20/SF
− Vacancy
−$1.6K −$0.77/SF
EGI
$31.4K $15.43/SF
− OpEx
−$9.4K −$4.63/SF
NOI
$22.0K $10.80/SF
Area
St. Charles County, MO
Vacancy
4.75%
Lease Rate
$16.20 /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%
$439,840
Cap Rate 7%
$314,171
Cap Rate 9%
$244,356

Alternative Uses

Best Use
Multifamily LT 5
$314.2K
$274.9K – $366.5K (±1% cap)
NOI $21,992 @ 7.0% cap · market cap 5.86%
Second Best
Apartment 5plus
$291.8K
$255.3K – $340.4K (±1% cap)
NOI $20,425 @ 7.0% cap · market cap 5.45%
Theoretical Best
Warehouse
$538.8K
$471.5K – $628.7K (±1% cap)
NOI $37,719 @ 7.0% cap · market cap 10.06%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Duplexes

Suggested Use

Top Pick Plumbing Service (Bike/Boat/Book/etc) Store Bakery Locksmith Furniture & Home Goods Electrical Service

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Location Intelligence

Trade Area within ½ mile

573
Businesses Nearby

Demographics for 63385, MO

47,756
Population
17,997
Households
2.7
Avg Household Size
36
Median Age
39%
College-Educated
95%
High-School Grad
66.8 sq mi
ZIP Area
715
Density / Sq Mi
$111,851
Median Household Income
$58,782
Median Earnings
$1,221
Median Rent
$321,300
Median Home Value

Market

Vacancy Rate% for Multifamily in Midwest region

6.5% 2022
7.5% 2023
7.8% 2024
8% 2025
Rey
Questions? Ask Rey
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Frequently Asked Questions

What type of property is this?
Duplex - Two-unit residential property with updated interiors, a large yard, garage, and on-site parking near downtown amenities.
Where is this duplex located?
The property is located at 502 S Linn Avenue Wentzville, MO.
What is the asking price?
The asking price for this property is $374,999.
What are key features of this property?
This property features: Duplex with spacious layouts and updated finishes; 100% occupied at the time of listing; New roof and fresh exterior paint completed in 2026
More about this property
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