Marathon, FL Commercial Real Estate for Sale

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Key Colony Beach, FL Duck Key, FL Conch Key, FL
30 properties
High-Exposure Office Suite
Updated: Mar 30
High-Exposure Office Suite

5701 Overseas Highway Unit 1, Marathon, FL 33050

$395,000
1,128 sqft
Freestanding‑style office suite in First Professional Centre with direct Overseas Highway frontage for visibility
Unit is the only secure unit in a 17‑unit complex and offers 1,128 SF of versatile space
Office layout includes a reception area with built‑in desk, three private offices, kitchen area, and a half bath
Central air cooling and windows surrounding the space for natural light
Includes guest parking, off‑street parking, and parking in the common area
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5701 Overseas Highway Unit 1, Marathon, FL 33050

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Marathon Commercial Property For Sale
Updated: Mar 25
Marathon Commercial Property For Sale

11401 Overseas Highway, Marathon, FL 33050

$1,533,333
3,429 sqft · 0.34 AC lot
Prime corner location with direct highway exposure.
Large 3,429 sq ft CBS building.
Commercial zoning allows for many office or retail uses.
Double drive‑thru.
15,000 sq ft corner lot with ample parking.
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Oversized Boat Slip with Tiki
Oversized Boat Slip with Tiki

100 Avenue I, Marathon, FL 33050

$920,000

Rare oversized boat slip in Marathon's Coco Plum Beach.

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Highway Frontage Development Opportunity
Highway Frontage Development Opportunity

8501 Overseas Highway, Marathon, FL 33050

$3,450,000
0.95 AC lot

Commercial land with highway frontage, development potential, and private dockage.

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Waterfront Development Site with Dockage
Waterfront Development Site with Dockage

14 125th Street Gulf, Marathon, FL 33050

$3,549,000
1.72 AC lot

Waterfront property with approved deep-water dockage and conditional use approval for 10 units plus 4 staff group home units.

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Corner Lot with Water Views
Corner Lot with Water Views

319 Tuskegee Street, Marathon, FL 33050

$239,000
0.06 AC lot

Cleared corner lot in Marathon offering water views and convenient access to major community destinations.

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Oceanfront Development Opportunity in Marathon
Oceanfront Development Opportunity in Marathon

57478 Overseas Highway, Marathon, FL 33050

$10,500,000
2.37 AC lot

Rare 2.37-acre oceanfront land parcel in the Florida Keys.

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Oceanfront Development Opportunity in Marathon
Oceanfront Development Opportunity in Marathon

57478 Overseas Highway, Marathon, FL 33050

$10,500,000
2.37 AC lot

Rare 2.37-acre oceanfront land parcel for luxury residential development.

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Live-A-Board Marina Slips
Live-A-Board Marina Slips

100 Ave I, Marathon, FL 33050

$410,000

Two adjacent marina slips for sale in Marathon, Florida.

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Waterfront Redevelopment Opportunity in Marathon, FL
Waterfront Redevelopment Opportunity in Marathon, FL

14 125Th Street Gulf, Marathon, FL 33050

$3,549,000
6,128 sqft · 1.72 AC lot

Rare waterfront property with redevelopment potential and deep water dockage.

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Waterfront Redevelopment Opportunity in Marathon
Waterfront Redevelopment Opportunity in Marathon

14 125Th Street Gulf, Marathon, FL 33050

$3,549,000
6,128 sqft · 1.57 AC lot

Rare waterfront property with redevelopment potential and deep water dockage.

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Corner Commercial Building with Drive-Through
Corner Commercial Building with Drive-Through

11401 Overseas Hwy, Marathon, FL 33050

$1,999,999
4,429 sqft · 0.34 AC lot

Oversized CBS building with drive-through, suitable for office or retail.

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Improved Medical Suite For Sale
Improved Medical Suite For Sale

5701 Overseas Hwy, Marathon, FL

$1,100,000
4,139 sqft · 1.70 AC lot

Well-maintained 4,139 SF medical suite in Marathon, Florida.

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Marathon Office Space For Sale
Marathon Office Space For Sale

9141 Overseas Highway, Marathon, FL 33050

Contact for pricing
84 sqft · 0.47 AC lot

Shared office space in Marathon Berkshire Business Center for sale.

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Waterfront Commercial Property in Marathon
Waterfront Commercial Property in Marathon

38 Coco Plum Drive, Marathon, FL 33050

$4,950,000
5,439 sqft · 0.69 AC lot

Prime commercial property with waterfront access and mixed-use potential.

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Waterfront Redevelopment Opportunity in Marathon
Waterfront Redevelopment Opportunity in Marathon

14 125Th Street Gulf, Marathon, FL 33050

$3,549,000
6,128 sqft · 1.72 AC lot

Rare waterfront property with deep water dockage and highway frontage.

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Waterfront Estate with Resort-Style Amenities
Waterfront Estate with Resort-Style Amenities

57223 Morton Street, Marathon, FL 33050

$35,000,000
9,530 sqft · 1.88 AC lot

Luxury waterfront estate with pools, villas, and ocean access.

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Gulf-Front Mixed-Use Estate Land
Gulf-Front Mixed-Use Estate Land

6500-6600 Overseas Highway, Marathon, FL 33050

$9,500,000
10,852 sqft · 3.86 AC lot

Secured gulf-front property with dockage and substantial highway and water frontage for flexible mixed-use plans.

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Waterfront Commercial Property in Marathon
Waterfront Commercial Property in Marathon

38 Coco Plum Dr, Marathon, FL 33050

$4,950,000
0.69 AC lot

Versatile waterfront property with mixed-use potential in the Florida Keys.

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Waterfront Redevelopment Opportunity with Dockage
Waterfront Redevelopment Opportunity with Dockage

14 125th Street Gulf, Marathon, FL 33050

$3,549,000
6,128 sqft · 1.72 AC lot

Rare waterfront redevelopment site with deep water dockage and highway frontage.

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Walgreens NNN Lease Investment Property
Walgreens NNN Lease Investment Property

10870 Overseas Hwy, Marathon, FL

$7,670,000
16,904 sqft · 1.51 AC lot

NNN leased Walgreens in Marathon, Florida with zero landlord responsibilities.

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Overseas Highway Mixed-Use Investment
Overseas Highway Mixed-Use Investment

7070 Overseas Highway, Marathon, FL 33050

$1,450,000
4,168 sqft

Mixed-use property with commercial space and residential rental units.

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Turnkey Auto Repair Investment Opportunity
Turnkey Auto Repair Investment Opportunity

10455 Overseas Hwy, Marathon, FL 33050

$1,550,000

Profitable auto repair business and real estate for sale.

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Oversized Boat Slip with Live-aboard
Oversized Boat Slip with Live-aboard

100 Ave I, Marathon, FL 33050

$455,000

Rare oversized boat slip with live-aboard approval in Marathon, FL.

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Marathon, FL Commercial Real Estate Market Trends and Statistics

Explore 72 commercial real estate for sale in Marathon, FL, showcased through 30 active listings on our real estate platform. These investment opportunities span a total of 107,530 square feet of properties for sale, with an estimated market value of $90,644,332.

Sale prices for business properties in Marathon, FL start at $395,000, averaging $6,042,955, and reaching up to $35,000,000 — 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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Demographics Overview

Population 11K
Population Growth (5Y) +12.2%
Median Household Income $83,776
College Educated 36.9%

High-Yield Neighborhoods for Investment

Identify Marathon submarkets with the highest inventory density on the market and evaluate the average listing prices of real estate assets

Neighborhood Average Price
33050 $4.8M

Taxes & Financing

Tax Rate (average for all types) 0.86%
Property Tax per SF $8.45 per SF
Tax Rate vs County Average 0.11 pp above county avg
Average Loan-to-Value 65.0%

Listings Trend

New vs delisted commercial listings in Monroe County

New Delisted

Total CRE Inventory on Market (SF)

Average Property Price per SF

For-sale pricing trends across core commercial property types in Monroe County

Retail

Residential Income

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