Two-Unit Duplex with
311 Karen Ln, San Antonio, TX 78209
For Sale
$390,000
Multi-Family (2-8 Units), San Antonio, TX
Property Size2,462 SF
Lot Size0.34 Acres
Price / SF$158.41
Days on Market51
Property Features for 311 Karen Ln
General Information
Property type
Property subtype
Elementary school
Middle school
High school
Subdivision
Standard status
APN
Size
Lot size
Taxes and HOA fees
Tax Annual Amount
Building Details
Year built
Buildings
Listing Agency:
eXp Realty
Listed By:
Amanda Ecklof · License TX #0723237
(888) 519-7431
Added: Sep 24
Changed: Oct 28
Last Checked: Nov 13 at 4:06AM
MLS# 2018817
Copyright © 2026 LERA MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
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Investment Insights
Based on property information with market context.
This one-story duplex contains 2,462 square feet of living space on a 0.343-acre lot. Built in 1952, it retains original hardwood flooring. The larger unit has three bedrooms, two full bathrooms, and space for up to three vehicles. The second unit includes two bedrooms, one bathroom, and a two-car carport.
The two-unit configuration combines distinct bedroom and parking arrangements within a single property.
The two-unit configuration combines distinct bedroom and parking arrangements within a single property.
Key Highlights
- 2,462 square feet of living space
- 0.343‑acre lot
- Built in 1952
Financial Insights
Estimated NOI and Cap Rate
NOI / Yr
$28,338
Cap Rate
7.27%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$566,760
$566.8K
Cap Rate 7%
$404,829
$404.8K
Cap Rate 9%
$314,867
$314.9K
Market Conditions
NOI Build-Up for 2,462 SF
Gross rent
$42.8K $17.40/SF
− Vacancy
−$2.4K −$0.96/SF
EGI
$40.5K $16.44/SF
− OpEx
−$12.1K −$4.93/SF
NOI
$28.3K $11.51/SF
Area
San Antonio, TX
Vacancy
5.50%
Lease Rate
$17.40 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$566,760
Cap Rate 7%
$404,829
Cap Rate 9%
$314,867
Alternative Uses
Best Use
Multifamily LT 5
$404.8K
$354.2K – $472.3K
NOI $28,338 @ 7.0% cap · market cap 7.27%
Second Best
Apartment 5plus
$359.3K
$314.4K – $419.2K
NOI $25,149 @ 7.0% cap · market cap 6.45%
Theoretical Best
Office A
$628.0K
$549.5K – $732.7K
NOI $43,961 @ 7.0% cap · market cap 11.27%
Zoning and permitted uses should be independently verified with authorities.
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Lease Details
2
Residential units
Location Intelligence
Trade Area within ½ mile
874
Businesses Nearby
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Business Placement
Demographics for 78209, TX
42,456
Population
22,771
Households
1.9
Avg Household Size
40
Median Age
62%
College-Educated
96%
High-School Grad
10.2 sq mi
ZIP Area
4,162
Density / Sq Mi
$84,180
Median Household Income
$57,921
Median Earnings
$1,371
Median Rent
$497,500
Median Home Value
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Market
Average Price Trend$/SF for Duplexes in San Antonio, TX
Properties on Market for Duplexes in San Antonio
Vacancy Rate% for Multifamily in South region
Frequently Asked Questions
What type of property is this?
Duplex - A one-story rental property offers separate two- and three-bedroom units on a substantial residential parcel.
Where is this duplex located?
The property is located at 311 Karen Ln San Antonio, TX.
What is the asking price?
The asking price for this property is $390,000.
What are key features of this property?
This property features: 2,462 square feet of living space; 0.343‑acre lot; Built in 1952
