Waterfront Duplex with
303 Sombrero Beach Road Marathon, FL 33050
For Sale
Under Contract
$1,549,000
MULTI_FAMILY - Marathon, FL
Property Size2,114 SF
Lot Size0.25 Acres
Price / SF$732.73
Days on Market48
Property Features for 303 Sombrero Beach Road
General Information
Property type
Residential Multi Family
Property subtype
Duplex
Zoning
RM-1 - Residential Medium
Bedrooms
4
Bathrooms
4
Rooms
Bathroom 4, Bathroom 3, Bedroom 2, Bedroom 3, Bedroom 4, Bathroom 2, Bedroom 1, Bathroom 1
Parking features
Open
Patio and Porch features
Porch
Pets allowed
Yes
Pool private
1
Appliances
Washer, Dryer, Dishwasher, Refrigerator, Range, Microwave, Disposal
Standard status
Active Under Contract
APN
00355270000701
Size
2,114 SF
Lot size
0.25 Acres
Taxes and HOA fees
Tax Year
2025
Tax Description
The Sombrero Properties Pb5-101 Boot Key Pt Parcel 5-D (Southerly Portion)
Tax Annual Amount
13534
Utilities
Utilities
Cable Available
Cooling system
Central Air
Water front
1
Building Details
Year built
1985
Number of units
2
Flooring type
Tile
Building materials
Combo Construction
Listing Agency:
Coldwell Banker Schmitt Real Estate Co.
(305) 743-5181
Listed By:
Sheryl Ann Phillips · License #6502322908
(305) 942-6771
Added: Jun 10
Changed: Jul 24
Last Checked: Jul 27 at 10:06AM
MLS# 620220
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 stilted full duplex is configured as two mirrored sides, each with 2 bedrooms and 2 bathrooms. The property includes open living and dining areas, a kitchen, washer and dryer, and enclosed sun porch space with water views. Exterior improvements include an in-ground pool, decking, a front porch, a low-maintenance gravel yard, and a large circular paver driveway that provides room for parking and trailer storage. At the waterfront, the home features a 110-foot concrete seawall with dockage and deep-water boating access. The lower level includes two garages and substantial storage space, suited for boating and fishing gear or other equipment.
Located at 303 Sombrero Beach Road in Marathon, the property is just about 1 mile from Sombrero Beach. The site is sized at approximately 0.25 acres and is zoned RM-1 - Residential Medium. The waterfront improvements support boating use, including room for multiple vessels along the dockage.
The duplex layout can accommodate a full-time residence with an added income stream, a second home, or an investment property setup such as a live-on-one-side and rent-the-other arrangement. With water views from the enclosed sun porch areas, a pool for on-site recreation, and on-property storage plus garage space below, the property is designed to support both everyday living and an active boating lifestyle.
Located at 303 Sombrero Beach Road in Marathon, the property is just about 1 mile from Sombrero Beach. The site is sized at approximately 0.25 acres and is zoned RM-1 - Residential Medium. The waterfront improvements support boating use, including room for multiple vessels along the dockage.
The duplex layout can accommodate a full-time residence with an added income stream, a second home, or an investment property setup such as a live-on-one-side and rent-the-other arrangement. With water views from the enclosed sun porch areas, a pool for on-site recreation, and on-property storage plus garage space below, the property is designed to support both everyday living and an active boating lifestyle.
Key Highlights
- Stilted full duplex in Marathon with 2 units, each with 2 bedrooms and 2 bathrooms
- Total 2,114 SF interior living space (approx. 1,057 SF per side) built in 1985
- Waterfront deep‑water boating access with 110 ft of concrete seawall and dockage for multiple vessels
Property Analytics
Property Profile
Location Intelligence
Current Use
Frequently Asked Questions
What type of property is this?
Duplex - Stilted waterfront duplex with a pool, 110 feet of concrete seawall, and dockage for deep-water boating access.
Where is this duplex located?
The property is located at 303 Sombrero Beach Road Marathon, FL.
What is the asking price?
The asking price for this property is $1,549,000.
What are key features of this property?
This property features: Stilted full duplex in Marathon with 2 units, each with 2 bedrooms and 2 bathrooms; Total 2,114 SF interior living space (approx. 1,057 SF per side) built in 1985; Waterfront deep‑water boating access with 110 ft of concrete seawall and dockage for multiple vessels
