Grassy Key,SeaGlass Cove
59720 Overseas Hwy #1, Marathon FL 33050
5 beds · 4.5 baths · 3,011 ft²
$3,300,000
Est. Payment $17,564/mo
5
Bedrooms
4.5
Bathrooms
3,011
Sq. Ft.
2023
Year Built
2
Garage
1
Days on Market
Description
SeaGlass Cove is a brand-new luxury, gated island community located in the heart of the Florida Keys adjacent to Duck Key. A rare find of just 14 new construction residences offering four and five-bedroom floor plans all with direct Atlantic Ocean views, a resort style pool, pickleball court, sandy beach, and the flexibility of a weekly rental. The first floor offers a private two car garage and covered cabana with spacious outdoor living space that leads out to the private beach and pool deck. The second floor features an open floor plan with spacious kitchen, dining and great rooms all overlooking the Atlantic Ocean. One en-suite bedroom on this floor provides seclusion for guests.
Facts
- MLS#
- A11366128
- Subdivision
- Grassy Key,SeaGlass Cove
- Property Type
- Residential
- Property Sub Type
- Single Family Residence
- Year Built
- 2023
- Lot Size
- 0 sqft
- Sq. Ft.
- 3,011 ft²
- Sq. Mt.
- 280 m²
- Price per sq. ft.
- $1,096/ft²
- Price per sq. mt.
- $11,786/m²
- Stories
- —
- Garage
- 2 spaces
- Pool
- —
- Days on Market
- 1 day
- Listed
- Apr 2, 2023
- Last Updated
- Feb 26, 2025
- Price/Lot Sq.Ft.
- —
Comparable homes
Same ZIP, similar price + bedrooms.
SOLD$3,300,000
5 bd · 5 ba · 3,011 sqft
59720 Overseas Hwy #3, Marathon FL 33050
SOLD$3,600,000
5 bd · 5 ba · 3,011 sqft
59720 Overseas Hwy #12, Marathon FL 33050
SOLD$2,995,000
5 bd · 4 ba · 2,607 sqft
11890 1st Avenue Gulf 9, Marathon FL 33050
SOLD$3,300,000
4 bd · 5 ba · 3,011 sqft
59720 Overseas Hwy #2, Marathon FL 33050
$3,475,000
5 bd · 6 ba · 4,091 sqft
990 41st Gulf Street 9, Other City - In The State Of Florida FL 33050
$2,950,000
5 bd · 5 ba · 3,011 sqft
59720 Overseas Hwy #9, Marathon FL 33050
$3,200,000
4 bd · 4 ba · —
82 Tingler Ln, Marathon FL 33050
SOLD$3,599,000
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Market insights for Marathon
Live MLS-derived activity. Forecast is a conservative rule-of-thumb estimate — not a guarantee.
Sellers market
May 2026
72
Median days to sold
+4.5%
1-year price forecast (est.)
Price & tax history
From the live MIAMI MLS feed. Older history requires the ListingHistory resource (not yet enabled).
| 2/26/2025 | Sold | $3,300,000 |
| 4/2/2023 | Listed for sale | $3,300,000 |
History reflects fields present on the live MLS record. Full multi-year history requires the MIAMI ListingHistory resource (not yet enabled).
Location
GreatSchools Summary Ratings
Public + private K-12 schools within 5 miles of this listing.
Fox Trail Elementary SchoolPK,KG,1,2,3,4,5 · public · 0.2 mi
- St Gregory The Great School
PK,TK,KG,1,2,3,4,5,6,7,8 · private · 0.5 mi
- Indian Ridge Middle School
6,7,8 · public · 0.5 mi
- Independence High School
UG · private · 0.7 mi
- Sterling Academy
6,7,8,9,10,11,12 · private · 1.1 mi
- Candil Jacaranda School
PK,KG,1,2,3,4,5 · private · 1.1 mi
- Clever Oaks
KG,1,2,3,4,5 · private · 1.1 mi
- Temple Kol Ami Emanu-El Day School
KG,1,2,3,4,5 · private · 1.2 mi
- Imagine School South Campus
KG,1,2,3,4,5,6,7,8 · charter · 1.2 mi
- American High School
6,7,8,9,10,11,12 · private · 1.4 mi
Data provided by GreatSchools.org © 2026. All rights reserved.Estimated Monthly Payment
$20,464/mo
Principal & Interest
$17,564
Property Tax
$2,750
Insurance
$150
HOA
$0
Estimates only. Actual payment depends on credit, lender, insurance carrier, and FL/Miami-Dade specifics. Contact Rangely for a precise quote.
The data relating to real estate for sale on this website comes in part from the Southeast Florida Multiple Listing Service. MLS Data is deemed reliable, but is not guaranteed accurate by MIAMI REALTORS®.
Accuracy of listing information is not guaranteed. Listing information is provided for personal consumer, non-commercial use, solely to identify potential properties for potential purchase. All other use is strictly prohibited and may be a violation of federal and state law.
Copyright Southeast Florida MLS a/k/a SEFMLS © 2026.
Updated within 24 hours
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