Furnished Half-Duplex Income
New
For Sale
$764,000
360 3rd St Ocean, Key Colony Beach, FL 33051
Residential, Key Colony, FL
Property Size1,380 SF
Lot Size0.07 Acres
Price / SF$553.62
Days on Market5
Property Features for 360 3rd St Ocean
General Information
Property type
Residential
Property subtype
Duplex
Zoning
R-2A - Key Colony Two Fam
Bedrooms
4
Bathrooms
2
Full bathrooms
2
Rooms
Bathroom 1, Bedroom 4, Bedroom 1, Bedroom 2, Bedroom 3, Bathroom 2
Window features
Blinds
Patio and Porch features
Patio
Pets allowed
Yes
Interior features
Built-in Cabinets, Granite Counter Top, Smoke Alarms, Walk-in Closet(s)
Exterior features
Storage, Tennis Court(s)
Appliances
Washer, Dryer, Dishwasher, Refrigerator, Range, Oven, Microwave, Freezer, Ice Machine, Stainless Steel Appliance(s)
Subdivision
Key Colony Beach (53.5)
View
Water
Standard status
Active
APN
00072560000100
Size
1,380 SF
Lot size
0.07 Acres
Taxes and HOA fees
Tax Year
2025
Tax Description
Bk 2 Southerly 1/2 Lt 28 Key Coloney Beach Subdivision Or403-763 Or755-1272 Or792-1038 Or1630-1423 Or1752-782 Or2079-107
Tax Annual Amount
5328
Legal Description
Bk 2 Southerly 1/2 Lt 28 Key Coloney Beach Subdivision Or403-763 Or755-1272 Or792-1038 Or1630-1423 Or1752-782 Or2079-107
Utilities
Heating system
Central
Cooling system
Central Air
Amenities
stainless steel appliances
impact-resistant windows and doors
backyard with patio and storage
Cabana Club membership
Building Details
Year built
2006
Flooring type
Tile
Building materials
CBS
Roof type
Shingle
Additional Structures
Storage
Listing Agency:
Keller Williams Capital Realty - Coral Gables · Keller Williams Realty
(305) 781-7178
Listed By:
Maria Acosta · License #3306691
(305) 322-1973
Added: Oct 26
Changed: Oct 30
Last Checked: Oct 30 at 12:06PM
MLS# 621818
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.
Ask AI about this property
Review the available facts, identify missing information and prepare questions for the agent.
Investment Insights
Based on property information with market context.
This furnished half duplex in Key Colony Beach contains 1,380 square feet on a 0.07-acre lot. Built in 2006, the residence has CBS construction, tile flooring, central heating and air conditioning, and impact-resistant windows and doors. Interior features include granite countertops, built-in cabinets, and a walk-in closet; the patio and backyard storage provide additional outdoor utility. The kitchen is equipped with stainless steel appliances, including a refrigerator, range, oven, dishwasher, microwave, freezer, and ice machine, with a washer and dryer also included.
Beaches, bike paths, tennis courts, a par-3 golf course, Sunset Park, restaurants, and a marina are among the nearby area amenities. Cabana Club membership is included. The property is zoned R-2A - Key Colony Two Fam.
Beaches, bike paths, tennis courts, a par-3 golf course, Sunset Park, restaurants, and a marina are among the nearby area amenities. Cabana Club membership is included. The property is zoned R-2A - Key Colony Two Fam.
Key Highlights
- Furnished half duplex with 1,380 square feet of living space
- 0.07‑acre lot in Key Colony Beach
- Built in 2006 with CBS construction
Financial Insights
Estimated NOI and Cap Rate
NOI / Yr
$21,414
Cap Rate
2.80%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$428,280
$428.3K
Cap Rate 7%
$305,914
$305.9K
Cap Rate 9%
$237,933
$237.9K
Market Conditions
NOI Build-Up for 1,380 SF
Gross rent
$41.7K $30.24/SF
− Vacancy
−$2.8K −$2.03/SF
EGI
$38.9K $28.21/SF
− OpEx
−$17.5K −$12.70/SF
NOI
$21.4K $15.52/SF
Area
Monroe County, FL
Vacancy
6.70%
Lease Rate
$30.24 /SF/Yr
Expense Ratio
45.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$428,280
Cap Rate 7%
$305,914
Cap Rate 9%
$237,933
Alternative Uses
Best Use
Apartment 5plus
$305.9K
$267.7K – $356.9K
NOI $21,414 @ 7.0% cap · market cap 2.80%
Second Best
—
—
no second resolved use
Theoretical Best
Office A
$555.1K
$485.7K – $647.6K
NOI $38,856 @ 7.0% cap · market cap 5.09%
Zoning and permitted uses should be independently verified with authorities.
How Realmo checks its estimates
Property Analytics
Who owns this building?
See the owner, sales and loan history
Open Analytics
Lease Details
1
Residential units
Location Intelligence
Trade Area within ½ mile
278
Businesses Nearby
Explore this area
Business Placement
Demographics for 33051, FL
790
Population
1,132
Households
0.7
Avg Household Size
63
Median Age
48%
College-Educated
95%
High-School Grad
0.4 sq mi
ZIP Area
1,975
Density / Sq Mi
$94,531
Median Household Income
$38,860
Median Earnings
$1,849
Median Rent
$834,800
Median Home Value
Check the figures for this property
Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics
Frequently Asked Questions
What type of property is this?
Residential income property - A furnished island residence combines impact-rated windows and doors with a private patio and storage.
Where is this residential income property located?
The property is located at 360 3rd St Ocean Key Colony Beach, FL.
What is the asking price?
The asking price for this property is $764,000.
What are key features of this property?
This property features: Furnished half duplex with 1,380 square feet of living space; 0.07‑acre lot in Key Colony Beach; Built in 2006 with CBS construction
