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Two-Unit Duplex with Central Air
New
For Sale
$799,000

159 Casa Court Drive, Key Largo, FL 33070

Residential, Key Largo, FL

Property Size1,844 SF
Lot Size0.17 Acres
Price / SF$433.30
Days on Market3

Property Features for 159 Casa Court Drive

General Information

Property type Residential Multi Family
Property subtype Duplex
Zoning MF - Multi-Family Attache
Bedrooms 4
Bathrooms 2
Full bathrooms 2
Rooms Bedroom 3, Bedroom 2, Bedroom 1, Bedroom 4, Bathroom 2, Bathroom 1
Parking features Open
Security features Security
Pets allowed Yes
Interior features Dade County Pine, Walk-in Closet(s)
Appliances Refrigerator, Range, Oven, Microwave, Stainless Steel Appliance(s)
Subdivision Adobe Casa (94.0)
View Water
Directions MM94 Bayside, Casa Court Drive
Standard status Active
APN 00481540-000000
Size 1,844 SF
Lot size 0.17 Acres

Taxes and HOA fees

Tax Year 2025
Tax Description Bk B Lot 20 Adobe Casa Court Pb5-17 Key Largo
Tax Annual Amount 6128
Legal Description Bk B Lot 20 Adobe Casa Court Pb5-17 Key Largo

Utilities

Utilities Cable Available
Heating system Central
Cooling system Central Air, Window Unit(s), Wall/Window Unit(s)

Building Details

Year built 1963
Floors in Building 1
Number of units 2
Flooring type Tile
Building materials CBS
Roof type Metal
Listing Agency: Coldwell Banker Schmitt Islamorada
Listed By: Lizette Miller · License #3065983
Added: Aug 20 Changed: Aug 22 Last Checked: Aug 22 at 11:06PM
MLS# 621042

Copyright © 2026 Florida Keys 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 1,844-square-foot duplex contains two separate 2-bedroom, 1-bath units on a 0.1728-acre lot. Built in 1963, the property features CBS construction, tile flooring, a metal roof, central heating, and central air, along with wall/window and window unit cooling. Interior details include Dade County Pine and walk-in closet(s), while the appliance package includes refrigerators, ranges, ovens, microwaves, and stainless steel appliances. Open parking is provided, and cable is available.

The property is located in Key Largo near shopping, a hospital, schools, and other everyday amenities. The mainland is approximately one hour away. An additional lot is available for separate purchase, subject to applicable zoning and approvals. The property is identified with MF - Multi-Family Attache zoning.

Key Highlights

  • Two separate 2‑bedroom, 1‑bath units
  • 1,844 square feet on a 0.1728‑acre lot
  • MF - Multi‑Family Attache zoning

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
$30,891
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
3.87%
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%
$617,820 $617.8K
Cap Rate 7%
$441,300 $441.3K
Cap Rate 9%
$343,233 $343.2K
Market Conditions
NOI Build-Up for 1,844 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
$47.1K $25.56/SF
− Vacancy
−$3.0K −$1.63/SF
EGI
$44.1K $23.93/SF
− OpEx
−$13.2K −$7.18/SF
NOI
$30.9K $16.75/SF
Area
Monroe County, FL
Vacancy
6.37%
Lease Rate
$25.56 /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%
$617,820
Cap Rate 7%
$441,300
Cap Rate 9%
$343,233

Alternative Uses

Best Use
Multifamily LT 5
$441.3K
$386.1K – $514.9K (±1% cap)
NOI $30,891 @ 7.0% cap · market cap 3.87%
Second Best
Apartment 5plus
$408.8K
$357.7K – $476.9K (±1% cap)
NOI $28,615 @ 7.0% cap · market cap 3.58%
Theoretical Best
Office A
$741.7K
$649.0K – $865.4K (±1% cap)
NOI $51,921 @ 7.0% cap · market cap 6.50%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Duplexes

Lease Details

2
Residential units

Location Intelligence

Trade Area within ½ mile

82
Businesses Nearby

Demographics for 33070, FL

6,220
Population
4,366
Households
1.4
Avg Household Size
52
Median Age
35%
College-Educated
93%
High-School Grad
4.2 sq mi
ZIP Area
1,481
Density / Sq Mi
$77,228
Median Household Income
$40,511
Median Earnings
$1,866
Median Rent
$695,000
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 separate residences each offer two bedrooms and one bathroom within a multi-family property near everyday amenities.
Where is this duplex located?
The property is located at 159 Casa Court Drive Key Largo, FL.
What is the asking price?
The asking price for this property is $799,000.
What are key features of this property?
This property features: Two separate 2‑bedroom, 1‑bath units; 1,844 square feet on a 0.1728‑acre lot; MF - Multi‑Family Attache zoning
More about this property
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