Have you been dreaming of your perfect Florida Keys island home & wondering where to build it? Look no further. Build your dream home on one of Marathon's most sought-after streets & waterfront neighborhoods. Tucked away on a quiet dead-end street just moments from Sombrero Beach, this exceptional homesite offers 65 feet of water frontage and the opportunity to create a custom island retreat in the heart of the Florida Keys.
Located on desirable Treasure Road, this peaceful enclave is known for its privacy, family-friendly atmosphere, & unbeatable convenience. This is a street you only drive down if you live there, offering a sense of seclusion and tranquility while remaining close to everything Marathon has to offer. Depending on the design and elevation of the future home, buyers may enjoy peek-a-boo ocean views & refreshing breezes from upper-level living areas & balconies. Neighboring homes enjoy water views, showcasing the potential of this unique location.
The property is currently in the City of Marathon's BPAS allocation system & ranked #17 in the most recent allocation round w/ 68 points. The seller has a newer set of plans for a 3-bed, 2-bath residence that may be submitted by the next owner, offering a valuable head start in the building process. Alternatively, buyers may choose to submit new plans designed to potentially increase allocation points and improve their ranking. Buyers should verify all BPAS & building requirements & permitting w/ the City of Marathon.
You'll love the convenience of being just minutes from Sombrero Beach, restaurants, shopping, & grocery stores in a golf cart friendly neighborhood where daily errands, evening bike rides, & sunset beach walks are all w/in easy reach. Whether you're planning a primary residence, seasonal getaway, future vacation home, or weekly rental property, this rare waterfront lot offers the opportunity to build exactly what you've been dreaming of while enjoying the very best of the FL Keys.
Lot/land
$599,000
Vacant 3a Treasure Rd, Marathon, FL 33050
--beds
0baths
8,712Square Feet
Unimproved Land
Built in ----
8,712 Square Feet Lot
$-- Zestimate®
$--/sqft
$-- HOA
What's special
Rare waterfront lotPeek-a-boo ocean viewsWaterfront neighborhoodsQuiet dead-end street
- 79 days
- 303
- 19
Zillow last checked:
Listing updated:
Listed by:
Monica Jane Barrett 305-433-0349,
Coldwell Banker Schmitt Real Estate Co.
Source: FLKMLS,MLS#: 620270
Facts & features
Interior
Bedrooms & bathrooms
- Bathrooms: 0
Video & virtual tour
Property
Features
- On waterfront: Yes
Lot
- Size: 8,712 Square Feet
- Features: Waterfront, Mangrove
Details
- Parcel number: 00105240001900
- Zoning: RM - Residential Medium
Utilities & green energy
- Utilities for property: Underground Utilities
Community & HOA
Community
- Features: Community Boat Ramp, Other, Beach
- Security: No Security
- Subdivision: Treasure Island (50.0)
HOA
- Has HOA: No
Location
- Region: Marathon
Financial & listing details
- Annual tax amount: $3,249
- Date on market: 6/13/2026
- Listing terms: Buyer Obtain Finance
- Road surface type: Paved
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 6/13/2026 | Listed for sale | $599,000 |
Source: | ||
Public tax history
Tax history is unavailable.




