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Long Key, FL Multifamily Properties for Sale

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Marathon, FL Islamorada, FL Duck Key, FL

Beachfront Multifamily Investment Opportunity

$3,899,000

1,647 SF

Beachfront Multifamily Investment Opportunity

65620 Overseas Highway, Long Key, FL 33001

Iconic beachfront multifamily property with income potential in Long Key.

Income‑producing beachfront duplex with 221' of private white sandy beach, ideal for vacation rentals.
Enjoy unobstructed Atlantic Ocean views with both sunrise and sunset vistas.
Located at the southern tip of Long Key, near Long Key State Park and the renowned Viaduct Tarpon fishery.
Historically significant property, the former site of Henry Flagler's Long Key Fishing Camp, once home to Zane Grey.
Tranquil, shallow waters perfect for snorkeling, fishing, and relaxation.

Updated: Sep 3, 2025

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Based on your search, we've compiled 9 Potential Opportunities for your consideration. Besides 1 Active listings in Long Key, FL, we suggest exploring several alternatives: 4 properties in Nearby Cities, plus 4 Land Listings that present a potential for development.

Opportunities in Nearby Cities

Here are 4 Similar properties we found in Nearby Locations for your consideration.

$799,000

1,496 SF

Key Largo Legal Duplex

Updated duplex near Harry Harris Park, generating $5350 monthly.

102 Harry Harris Drive, Key Largo, FL 33070

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$11,000,000

12,198 SF

Waterfront Residences: Luxury & Income

Three designer homes on a waterfront parcel with income potential.

2394 Coco Plum Drive, Marathon, FL 33050

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Key Largo Multifamily Investment Opportunity

$750,000

2,197 SF

Key Largo Multifamily Investment Opportunity

Multifamily property with vacant lot near Tavernier park.

185 Dove Lake Drive, Key Largo, FL 33070

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$9,900,000

22,000 SF

Grassy Key Marina Investment

Marina with rental income, apartments, and potential for growth.

59073 Overseas Hwy, Marathon, FL 33050

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Potential Development Sites for Consideration

Can't find the perfect fit? These Land listings present an alternative path: the potential to develop a property for your specific goals.

Important: These AI-suggestions are a starting point, not a guarantee of permitted use. All zoning, permitting, and land use information must be independently verified by you with the appropriate local authorities before making any commitments.

$9,950,000

10,852 SF

Gulf Front Estate in Marathon

3.86-acre mixed-use commercial property with highway and water frontage.

6500-6600 Overseas Highway, Marathon, FL 33050

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$237,500

0.02 Acres

Buildable RV Lot with Views

Buildable RV lot with ocean views and resort amenities.

6099 Overseas Highway, Marathon, FL 33050

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$369,000

1,169 SF

Plantation Key Land Opportunity

Land with building rights near Founders Park, restaurants, and schools.

135 Airstream Lane, Plantation Key, FL 33070

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$260,000

0.04 Acres

Land in Exclusive Key Largo

Build your dream home in a luxury gated community.

94825 Overseas Highway, Key Largo, FL 33037

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Long Key, FL Multifamily Properties Investment Opportunities Market Analysis

Explore 1 multifamily properties for sale in Long Key, FL on our real estate platform. These investment opportunities span a total of 1,647 square feet of properties for sale, with an estimated market value of $3,899,000.

Sale prices for multifamily properties in Long Key, FL start at $3,899,000, averaging $3,899,000, and reaching up to $3,899,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

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Top Commercial Asset Segments

Demographics Overview

Population 254

Median Household Income $60,750

College Educated 33.5%

High-Yield Neighborhoods for Strategic Investment

Identify Long Key submarkets with the highest inventory density on the market and evaluate the median listing prices of real estate assets

Neighborhood	Average Price
33001	$3.9M

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Long Key, FL Multifamily Properties for Sale

Beachfront Multifamily Investment Opportunity

Iconic beachfront multifamily property with income potential in Long Key.