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Half Duplex with Two Bedrooms

250 66Th Street Marathon, FL 33050

250 66Th Street, Marathon, FL, 33050
$295,000
For Sale
$295,000

SINGLE_FAMILY - Marathon, FL

Property Size783 SF
Lot Size0.05 Acres
Price / SF$376.76
Days on Market75

Property Features for 250 66Th Street

General Information

Property type
Residential
Property subtype
Duplex
Zoning
RM - Residential Medium
Bedrooms
2
Bathrooms
1
Rooms
Bathroom 1, Bedroom 1, Bedroom 2
Pets allowed
Yes
Exterior features
Fencing
Fencing
Fenced
Appliances
Refrigerator
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

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
85990 Overseas Highway, ISLAMORADA, FL
Listed by Susan Ashmore · License #697588
Added: May 7 Updated: Jul 18 at 12:50 am Checked: Jul 20 at 4:06 pm
MLS# 619860 Listing URL

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 half duplex for sale includes two bedrooms and one bathroom. The property provides ample parking in the front yard and is currently occupied by long-time tenants. Total size is listed at 783 square feet.

Located at 250 66th Street in Marathon, Florida (33050) within RM - Residential Medium zoning.

Also offered for sale is the other half duplex located to the back of the property, allowing an interested buyer to consider acquiring both units.

Key Highlights

  • 1971 half‑duplex with 2 bedrooms and 1 bathroom
  • Central A/C and tile flooring
  • Metal roof; CBS construction

Local Financial Insights For Apartment 5plus

Simulate Cap Rate and NOI

NOI Build-Up
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.

Component $ $/SF
Gross rent $23.7k $30.24
− Vacancy −$1.6k −$2.03
EGI $22.1k $28.21
− OpEx −$9.9k −$12.70
NOI $12.2k $15.52
783 SF · lease $30.24/SF/yr · vacancy 6.70% · expense 45.00%

Alternative Uses

Best Use
Apartment 5plus
$173.6K
$151.9K – $202.5K (±1% cap)
NOI $12,150 @ 7.0% cap · market cap 4.12%
Second Best
—
—
no second resolved use
Theoretical Best
Office A
$315.0K
$275.6K – $367.5K (±1% cap)
NOI $22,047 @ 7.0% cap · market cap 7.47%
Zoning and permitted uses should be independently verified with local authorities.

Property Analytics

Property Profile Location Intelligence

Current Use by Public Records

Single family properties

FAQs

What type of property is this?
Single family property - Half duplex offers two bedrooms, one bathroom, and front-yard parking with long-term tenants in place.
Where is this single family property 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: 1971 half‑duplex with 2 bedrooms and 1 bathroom; Central A/C and tile flooring; Metal roof; CBS construction
Contact an agent
More about this property
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