Two-Bedroom Half
For Sale
$295,000
250 66Th Street, Marathon, FL 33050
Residential, Marathon, FL
Property Size783 SF
Lot Size0.05 Acres
Price / SF$376.76
Days on Market129
Property Features for 250 66Th Street
General Information
Property type
Residential
Property subtype
Duplex
Zoning
RM - Residential Medium
Bedrooms
2
Bathrooms
1
Full bathrooms
1
Rooms
Bedroom 1, Bedroom 2, Bathroom 1
Pets allowed
Yes
Exterior features
Fencing
Fencing
Fenced
Appliances
Refrigerator
Subdivision
Puerta Del Sol (50.5)
View
Water
Directions
Turn ocean side at MM 50.5 just south of the KFC. At the stop sign, turn left and take the first right. House is on the left.
Standard status
Active
APN
00341430-000000
Size
783 SF
Lot size
0.05 Acres
Taxes and HOA fees
Tax Year
2025
Tax Description
W'LY 53.70 SQFT LT 12 BK C PUERTA DEL SOL PB3-117 KEY VACA OR121-299/300 OR421-897D/C OR775-394 OR815-1819 OR1083-1521 O
Tax Annual Amount
3309
Legal Description
W'LY 53.70 SQFT LT 12 BK C PUERTA DEL SOL PB3-117 KEY VACA OR121-299/300 OR421-897D/C OR775-394 OR815-1819 OR1083-1521 O
Utilities
Cooling system
Central Air
Building Details
Year built
1971
Floors in Building
1
Flooring type
Tile
Building materials
CBS
Roof type
Metal
Listing Agency:
Coldwell Banker Schmitt Islamorada
(305) 664-4470
Listed By:
Susan Ashmore · License #697588
(305) 393-0214
Added: May 7
Changed: Sep 12
Last Checked: Sep 12 at 3:06PM
MLS# 619860
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 783-square-foot half duplex, built in 1971, offers two bedrooms and one bathroom in a CBS construction design. Tile flooring, central air, a fenced exterior, and front-yard parking are included. The metal roof is approximately 5 years old.
The property is zoned RM - Residential Medium and sits on a 0.05-acre lot. The refrigerator is the only appliance included; it is functional but has exterior rust. A stove, washer, and dryer are needed, and the central air system is older.
The property is zoned RM - Residential Medium and sits on a 0.05-acre lot. The refrigerator is the only appliance included; it is functional but has exterior rust. A stove, washer, and dryer are needed, and the central air system is older.
Key Highlights
- Two‑bedroom, one‑bathroom half duplex with 783 square feet
- 0.05‑acre lot zoned RM - Residential Medium
- Metal roof approximately 5 years old
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
$13,117
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
4.45%
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%
$262,340
$262.3K
Cap Rate 7%
$187,386
$187.4K
Cap Rate 9%
$145,744
$145.7K
Market Conditions
NOI Build-Up for 783 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
$20.0K $25.56/SF
− Vacancy
−$1.3K −$1.63/SF
EGI
$18.7K $23.93/SF
− OpEx
−$5.6K −$7.18/SF
NOI
$13.1K $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%
$262,340
Cap Rate 7%
$187,386
Cap Rate 9%
$145,744
Alternative Uses
Best Use
Multifamily LT 5
$187.4K
$164.0K – $218.6K
NOI $13,117 @ 7.0% cap · market cap 4.45%
Second Best
Apartment 5plus
$173.6K
$151.9K – $202.5K
NOI $12,150 @ 7.0% cap · market cap 4.12%
Theoretical Best
Office A
$315.0K
$275.6K – $367.5K
NOI $22,047 @ 7.0% cap · market cap 7.47%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
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Current Use
Lease Details
1
Residential units
Location Intelligence
Trade Area within ½ mile
538
Businesses Nearby
Explore this area
Business Placement
Demographics for 33050, FL
10,479
Population
7,314
Households
1.4
Avg Household Size
50
Median Age
34%
College-Educated
90%
High-School Grad
9.1 sq mi
ZIP Area
1,152
Density / Sq Mi
$83,243
Median Household Income
$40,006
Median Earnings
$1,611
Median Rent
$705,600
Median Home Value
Check the figures for this property
Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics
Market
Vacancy Rate% for Multifamily in South region
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Duplex - Fenced grounds, front-yard parking, and a metal roof support this CBS-built residential property.
Where is this duplex located?
The property is located at 250 66Th Street Marathon, FL.
What is the asking price?
The asking price for this property is $295,000.
What are key features of this property?
This property features: Two‑bedroom, one‑bathroom half duplex with 783 square feet; 0.05‑acre lot zoned RM - Residential Medium; Metal roof approximately 5 years old
