Search
Concrete Duplex
For Sale
$490,000

CALLE SAN ANTONIO, San Juan, PR 00909

Residential Income, SAN JUAN, PRI

Property Size1,648 SF
Lot Size0.05 Acres
Price / SF$297.33
Days on Market353

Property Features for CALLE SAN ANTONIO

General Information

Property type Residential Multi Family
Property subtype Duplex
Zoning ZC
Bedrooms 4
Bathrooms 2
Full bathrooms 2
Rooms Bedroom 4, Laundry Room, Bathroom 1, Bathroom 2, Bedroom 3, Bedroom 2, Bedroom 1
Exterior features Balcony, Courtyard, Fence, Private Mailbox, Sidewalk
Fencing Fenced
Subdivision CALLE SAN ANTONIO
Directions Calle San Antonio 1866, San Juan, P.R Frente a Universidad el Sagrado Corazon.
Standard status Active
APN 041-081-425-16-001
Size 1,648 SF
Lot size 0.05 Acres

Taxes and HOA fees

Tax Year 2025

Utilities

Water source Private

Amenities

laundry area
patio
garage

Building Details

Year built 1970
Floors in Building 2
Number of units 2
Building materials Block, Concrete
Roof type Concrete
Listing Agency: CARLA L MARTINEZ
Listed By: Carla Martinez · License #14389
Added: Oct 14, 2025 Changed: Sep 28 Last Checked: Oct 1 at 2:06PM
MLS# PR9116697

Copyright © 2026 Stellar 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 1,648 square feet arranged as two residential units. Each unit includes two bedrooms and one bathroom, along with living, dining, kitchen, and laundry areas. The property also includes a patio, garage, balcony, courtyard, fencing, and sidewalk access. Block and concrete construction, a concrete roof, and a private water source are among the existing improvements. Built in 1970, the structure requires improvements and is being sold in its existing condition.

The property is located on San Antonio Street in San Juan, near the University of Sagrado Corazon and at the corner of Bouret Street. The 0.05-acre site is within the stated ZC zoning designation.

Key Highlights

  • 1,648‑square‑foot duplex with two residential units
  • Each unit includes 2 bedrooms and 1 bathroom
  • Built in 1970 with block and concrete construction

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
$16,845
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
3.44%
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%
$336,900 $336.9K
Cap Rate 7%
$240,643 $240.6K
Cap Rate 9%
$187,167 $187.2K
Market Conditions
NOI Build-Up for 1,648 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
$25.2K $15.30/SF
− Vacancy
−$1.1K −$0.70/SF
EGI
$24.1K $14.60/SF
− OpEx
−$7.2K −$4.38/SF
NOI
$16.8K $10.22/SF
Area
San Juan, PR
Vacancy
4.56%
Lease Rate
$15.30 /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%
$336,900
Cap Rate 7%
$240,643
Cap Rate 9%
$187,167

Alternative Uses

Best Use
Multifamily LT 5
$240.6K
$210.6K – $280.8K (±1% cap)
NOI $16,845 @ 7.0% cap · market cap 3.44%
Second Best
Apartment 5plus
$209.6K
$183.4K – $244.5K (±1% cap)
NOI $14,669 @ 7.0% cap · market cap 2.99%
Theoretical Best
Specialty Retail
$403.4K
$353.0K – $470.7K (±1% cap)
NOI $28,240 @ 7.0% cap · market cap 5.76%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Duplexes

Lease Details

2
Residential units
Yes
Paved road access

Location Intelligence

Demographics for 00909, PR

6,987
Population
3,982
Households
1.8
Avg Household Size
42
Median Age
42%
College-Educated
86%
High-School Grad
0.7 sq mi
ZIP Area
9,981
Density / Sq Mi
$26,066
Median Household Income
$21,366
Median Earnings
$719
Median Rent
$199,100
Median Home Value

Market

Vacancy Rate% for Multifamily in the U.S.

7.1% 2022
8.3% 2023
9.3% 2024
9.3% 2025
Rey
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.

Frequently Asked Questions

What type of property is this?
Duplex - Two residential units include bedrooms, baths, living, dining, kitchen, laundry, patio, and garage areas.
Where is this duplex located?
The property is located at CALLE SAN ANTONIO San Juan, PR.
What is the asking price?
The asking price for this property is $490,000.
What are key features of this property?
This property features: 1,648‑square‑foot duplex with two residential units; Each unit includes 2 bedrooms and 1 bathroom; Built in 1970 with block and concrete construction
More about this property
Thanks! Your message was sent.
Error! Your message wasn't sent.
Please enter your name
Please enter email
Please enter the email in the correct format
Please enter phone
Please enter the number in the correct format
Please enter message
Why this one?
Saved
Reason not saved — we won't ask again