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Bayou Black Duplex Investment Opportunity
For Sale
$137,000

3748 Southdown Mandalay Road, Houma, LA 70360

Residential Income, Houma, LA

Property Size1,800 SF
Lot Size0.26 Acres
Price / SF$76.11
Days on Market103

Property Features for 3748 Southdown Mandalay Road

General Information

Property type Residential Multi Family
Property subtype Other
Parking 6
Appliances Electric Cooktop
Subdivision Bisland Town
Elementary school district Terrebonne Parish
Middle school district Terrebonne Parish
High school district Terrebonne Parish
Standard status Active
Size 1,800 SF
Lot size 0.26 Acres

Utilities

Sewer type Public Sewer
Heating system Central
Cooling system Central Air
Water source Public

Building Details

Building materials Brick Siding, Frame
Listing Agency: KELLER WILLIAMS REALTY BAYOU P
Listed By: Dana Theriot · License #995693099
Added: May 12 Changed: Aug 19 Last Checked: Aug 22 at 8:06PM
MLS# 2026008762

Copyright © 2026 Bayou Board of Realtors. 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 multifamily property is a duplex located in Bayou Black near the Bayou Black gym. Each unit features 3 bedrooms and 2 bathrooms. The property includes a spacious yard and a carport. The property size is 1800 square feet and the lot size is 0.26 acres. The property is currently tenant-occupied and generating rental income. It is located in Houma, LA, and is not in a flood zone, according to the provided information.

Key Highlights

  • Duplex in Bayou Black near Bayou Black gym
  • Unit mix: 3 bed/2 bath and 2 bed/2 bath
  • Central heating and central air

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
$11,771
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
8.59%
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%
$235,420 $235.4K
Cap Rate 7%
$168,157 $168.2K
Cap Rate 9%
$130,789 $130.8K
Market Conditions
NOI Build-Up for 1,800 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
$23.5K $13.08/SF
− Vacancy
−$2.1K −$1.19/SF
EGI
$21.4K $11.89/SF
− OpEx
−$9.6K −$5.35/SF
NOI
$11.8K $6.54/SF
Area
Terrebonne County, LA
Vacancy
9.10%
Lease Rate
$13.08 /SF/Yr
Expense Ratio
45.00%
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%
$235,420
Cap Rate 7%
$168,157
Cap Rate 9%
$130,789

Alternative Uses

Best Use
Multifamily LT 5
$193.4K
$169.2K – $225.6K (±1% cap)
NOI $13,537 @ 7.0% cap · market cap 9.88%
Second Best
Apartment 5plus
$168.2K
$147.1K – $196.2K (±1% cap)
NOI $11,771 @ 7.0% cap · market cap 8.59%
Theoretical Best
Office A
$496.2K
$434.2K – $578.9K (±1% cap)
NOI $34,733 @ 7.0% cap · market cap 25.35%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Duplexes

Suggested Use

Top Pick HVAC Service Electrical Service Big Box & Wholesale Store Law Firm Fish Market Bed & Breakfast

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
Turnkey business
Opportunity

Location Intelligence

Trade Area within ½ mile

25
Businesses Nearby

Demographics for 70360, LA

28,014
Population
12,283
Households
2.3
Avg Household Size
40
Median Age
32%
College-Educated
90%
High-School Grad
60.1 sq mi
ZIP Area
466
Density / Sq Mi
$82,365
Median Household Income
$44,925
Median Earnings
$1,085
Median Rent
$297,100
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 - Duplex in Bayou Black, each unit with 3 beds/2 baths.
Where is this duplex located?
The property is located at 3748 Southdown Mandalay Road Houma, LA.
What is the asking price?
The asking price for this property is $137,000.
What are key features of this property?
This property features: Duplex in Bayou Black near Bayou Black gym; Unit mix: 3 bed/2 bath and 2 bed/2 bath; Central heating and central air
More about this property
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