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Leased Duplex with Central Air
For Sale
$315,000

521/523 Southtrail Drive, San Antonio, TX 78216

Multi-Family (2-8 Units), San Antonio, TX

Property Size1,793 SF
Lot Size0.17 Acres
Price / SF$175.68
Days on Market67

Property Features for 521/523 Southtrail Drive

General Information

Property type Residential Multi Family
Property subtype Other
Zoning RM-4
Elementary school Call District
Middle school Call District
High school Call District
Subdivision 0600
Standard status Active
Size 1,793 SF
Lot size 0.17 Acres

Taxes and HOA fees

Tax Annual Amount 5555

Utilities

Cooling system Central Air

Building Details

Year built 1968
Listing Agency: Sophus Properties, LLC
Listed By: Donna Crabtree · License #512451
Added: Aug 1 Changed: Aug 19 Last Checked: Oct 6 at 6:06PM
MLS# 1942351

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.

Investment Insights

Based on property information with market context.

This duplex contains two residential units within a 1,793-square-foot property built in 1968. Both units are currently leased, providing existing occupancy at closing. Central air serves the property, and the improvements may benefit from cosmetic updates.

The property is located at 521/523 Southtrail Drive in San Antonio, Texas 78216. It sits on 0.174 acres and carries RM-4 zoning. The asset is classified as a duplex and is offered for sale.

Key Highlights

  • Two‑unit duplex with both units currently leased
  • 1,793 square feet of property size
  • 0.174‑acre lot

Financial Insights

Estimated NOI and Cap Rate

NOI / Yr
$20,638
Cap Rate
6.55%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$412,760 $412.8K
Cap Rate 7%
$294,829 $294.8K
Cap Rate 9%
$229,311 $229.3K
Market Conditions
NOI Build-Up for 1,793 SF
Gross rent
$31.2K $17.40/SF
− Vacancy
−$1.7K −$0.96/SF
EGI
$29.5K $16.44/SF
− OpEx
−$8.8K −$4.93/SF
NOI
$20.6K $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%
$412,760
Cap Rate 7%
$294,829
Cap Rate 9%
$229,311

Alternative Uses

Best Use
Multifamily LT 5
$294.8K
$258.0K – $344.0K (±1% cap)
NOI $20,638 @ 7.0% cap · market cap 6.55%
Second Best
Apartment 5plus
$261.6K
$228.9K – $305.3K (±1% cap)
NOI $18,315 @ 7.0% cap · market cap 5.81%
Theoretical Best
Office A
$457.4K
$400.2K – $533.6K (±1% cap)
NOI $32,015 @ 7.0% cap · market cap 10.16%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

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Current Use

Duplexes

Suggested Use

Top Pick (Bike/Boat/Book/etc) Store Florist Pet Grooming Service Wine and Liquor Store Restaurant Fish Market

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

Lease Details

2
Residential units
100%
Occupancy

Location Intelligence

Trade Area within ½ mile

1,699
Businesses Nearby

Demographics for 78216, TX

40,172
Population
22,138
Households
1.8
Avg Household Size
37
Median Age
34%
College-Educated
90%
High-School Grad
14.1 sq mi
ZIP Area
2,849
Density / Sq Mi
$55,488
Median Household Income
$38,591
Median Earnings
$1,211
Median Rent
$281,700
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

Market

Vacancy Rate% for Multifamily in South region

8.5% 2022
10.2% 2023
11.4% 2024
11.3% 2025
Rey
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Frequently Asked Questions

What type of property is this?
Duplex - Two currently leased units offer an established occupancy profile in San Antonio.
Where is this duplex located?
The property is located at 521/523 Southtrail Drive San Antonio, TX.
What is the asking price?
The asking price for this property is $315,000.
What are key features of this property?
This property features: Two‑unit duplex with both units currently leased; 1,793 square feet of property size; 0.174‑acre lot
More about this property
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