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Spanish Revival Duplex
New
For Sale
$430,000

421 ELEANOR AVE, San Antonio, TX 78209

MULTI_FAMILY - San Antonio, TX

Property Size1,324 SF
Lot Size0.20 Acres
Price / SF$324.77
Days on Market3

Property Features for 421 ELEANOR AVE

General Information

Property type Residential Multi Family
Property subtype Other
Zoning MF-33 NCD-6
Elementary school Lamar
High school Edison
Elementary school district San Antonio I.S.D.
Middle school district San Antonio I.S.D.
High school district San Antonio I.S.D.
Subdivision 1300
Standard status Active
Size 1,324 SF
Lot size 0.20 Acres

Taxes and HOA fees

Tax Annual Amount 9518

Utilities

Cooling system Central Air

Amenities

high ceilings
arched cutouts
custom wrought-iron accents
private entry court

Building Details

Year built 1936
Listing Agency: JB Goodwin, REALTORS
Listed By: David Boullosa
Added: Aug 13 Last Checked: Aug 15 at 1:06AM
MLS# 2008142

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.

Built in 1936, this Spanish Revival duplex contains two private one-bedroom, one-bath residences with separate entries. Original character includes high ceilings, arched openings, custom wrought-iron detailing, and a private entry court, while central air conditioning provides a modern building system. The property occupies a 0.201-acre lot in Mahncke Park, a tree-lined neighborhood in San Antonio.

Zoning is MF-33 NCD-6, and the property information states that the rear area is zoned for additional unit construction. The existing configuration can support separate residential occupancy, with the site also offering potential for an ADU, additional rental units, or expansion of the current footprint as permitted.

Key Highlights

  • Two‑unit duplex built in 1936
  • Spanish Revival details include high ceilings, arched openings, and custom wrought‑iron accents
  • Two private 1‑bedroom, 1‑bath units

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
$15,239
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
3.54%
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%
$304,780 $304.8K
Cap Rate 7%
$217,700 $217.7K
Cap Rate 9%
$169,322 $169.3K
Market Conditions
NOI Build-Up for 1,324 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
$23.0K $17.40/SF
− Vacancy
−$1.3K −$0.96/SF
EGI
$21.8K $16.44/SF
− OpEx
−$6.5K −$4.93/SF
NOI
$15.2K $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%
$304,780
Cap Rate 7%
$217,700
Cap Rate 9%
$169,322

Alternative Uses

Best Use
Multifamily LT 5
$217.7K
$190.5K – $254.0K (±1% cap)
NOI $15,239 @ 7.0% cap · market cap 3.54%
Second Best
Apartment 5plus
$193.2K
$169.1K – $225.4K (±1% cap)
NOI $13,524 @ 7.0% cap · market cap 3.15%
Theoretical Best
Office A
$337.7K
$295.5K – $394.0K (±1% cap)
NOI $23,641 @ 7.0% cap · market cap 5.50%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Duplexes

Suggested Use

Top Pick Building Supply HVAC Service Grocery & Convenience Store (Bike/Boat/Book/etc) Store Electrical Service Computer & Electronic Repair

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

853
Businesses Nearby

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

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 private one-bedroom, one-bath units retain original architectural character alongside central air conditioning.
Where is this duplex located?
The property is located at 421 ELEANOR AVE San Antonio, TX.
What is the asking price?
The asking price for this property is $430,000.
What are key features of this property?
This property features: Two‑unit duplex built in 1936; Spanish Revival details include high ceilings, arched openings, and custom wrought‑iron accents; Two private 1‑bedroom, 1‑bath units
More about this property
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