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Updated Duplex on Corner Lot
For Sale
$218,400

971 Chalmers Ave, San Antonio, TX 78211

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

Property Size1,592 SF
Lot Size0.29 Acres
Price / SF$137.19
Days on Market53

Property Features for 971 Chalmers Ave

General Information

Property type Residential Multi Family
Property subtype Other
Zoning R-5
Elementary school Stonewall Elementary
Middle school Leal
High school Harlandale
Elementary school district Harlandale I.S.D
Middle school district Harlandale I.S.D
High school district Harlandale I.S.D
Subdivision 2200
Standard status Active
Size 1,592 SF
Lot size 0.29 Acres

Taxes and HOA fees

Tax Annual Amount 4691

Utilities

Cooling system Central Air

Amenities

Ring security system

Building Details

Year built 1947
Listing Agency: eXp Realty
Listed By: Tyler Moore
Added: Jul 18 Changed: Aug 19 Last Checked: Sep 8 at 6:06PM
MLS# 1966744

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 1,592 square feet across two units, with one residence occupied by a tenant and the second currently vacant. The available unit can accommodate an owner occupant or a new tenant. Interior updates have been completed, and the property includes central air conditioning, a Ring security system, and functional layouts. Some plumbing, sewer, electrical, and foundation work has also been completed, with warranty information available.

The property occupies a 0.29-acre corner lot at 971 Chalmers Ave in San Antonio, Texas. Mature trees, outdoor area, and ample parking are additional site features. The location is near shopping, dining, schools, and major roadways. Built in 1947 and zoned R-5, the duplex offers a two-unit configuration with both current occupancy and future-use flexibility.

Key Highlights

  • Two‑unit duplex with 1,592 square feet of property area
  • One unit is tenant occupied; the second unit is vacant
  • Situated on a 0.29‑acre corner lot with mature trees and ample parking

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
$18,324
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
8.39%
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%
$366,480 $366.5K
Cap Rate 7%
$261,771 $261.8K
Cap Rate 9%
$203,600 $203.6K
Market Conditions
NOI Build-Up for 1,592 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
$27.7K $17.40/SF
− Vacancy
−$1.5K −$0.96/SF
EGI
$26.2K $16.44/SF
− OpEx
−$7.9K −$4.93/SF
NOI
$18.3K $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 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%
$366,480
Cap Rate 7%
$261,771
Cap Rate 9%
$203,600

Alternative Uses

Best Use
Multifamily LT 5
$261.8K
$229.1K – $305.4K (±1% cap)
NOI $18,324 @ 7.0% cap · market cap 8.39%
Second Best
Apartment 5plus
$232.3K
$203.3K – $271.0K (±1% cap)
NOI $16,262 @ 7.0% cap · market cap 7.45%
Theoretical Best
Office A
$406.1K
$355.3K – $473.8K (±1% cap)
NOI $28,426 @ 7.0% cap · market cap 13.02%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Duplexes

Suggested Use

Top Pick Real Estate Agency Law Firm Dental Office Spa & Massage Center Parking Lot & Garage Skin Care Clinic

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

Location Intelligence

Trade Area within ½ mile

470
Businesses Nearby

Demographics for 78211, TX

29,976
Population
10,516
Households
2.9
Avg Household Size
35
Median Age
7%
College-Educated
63%
High-School Grad
10.2 sq mi
ZIP Area
2,939
Density / Sq Mi
$54,279
Median Household Income
$30,109
Median Earnings
$1,047
Median Rent
$110,200
Median Home Value

Market

Vacancy Rate% for Multifamily in South region

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

What type of property is this?
Duplex - Two-unit property with one occupied residence, a vacant second unit, and refreshed interiors for flexible use.
Where is this duplex located?
The property is located at 971 Chalmers Ave San Antonio, TX.
What is the asking price?
The asking price for this property is $218,400.
What are key features of this property?
This property features: Two‑unit duplex with 1,592 square feet of property area; One unit is tenant occupied; the second unit is vacant; Situated on a 0.29‑acre corner lot with mature trees and ample parking
More about this property
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