Grassy Key
57151 Morton St, Marathon FL 33050
4 beds · 3.5 baths · 4,748 ft²
$2,699,000
Est. Payment $14,365/mo
4
Bedrooms
3.5
Bathrooms
4,748
Sq. Ft.
1954
Year Built
2
Garage
28
Days on Market
Description
Invest in this private 1 acre Gulf estate NOW before renovations begin & price adjusts! All the boxes are checked with this one: Unobstructed open water views, deep water dock + rare boat basin, swimming pool, weekly rental capability & nearly 5,000 sq. ft. of living space! As you enter this solid two-story home, the first floor houses a spacious mother in-law suite, several flexible-use rooms & access to the large 2 car garage. Upstairs, an impressive Great room displaying rich hardwood flooring & soaring ceilings that flow into the fully equip master suite & across the home to the 2 guest bedrooms w/ jack & jill bath. Generous balconies encompass the home providing outdoor access for every bedroom. Escape from it all with this tranquil, tropical oasis!
Facts
- MLS#
- A10972682
- Subdivision
- Grassy Key
- Property Type
- Residential
- Property Sub Type
- Single Family Residence
- Year Built
- 1954
- Lot Size
- 48,985 ft²
- Sq. Ft.
- 4,748 ft²
- Sq. Mt.
- 441 m²
- Price per sq. ft.
- $568/ft²
- Price per sq. mt.
- $6,120/m²
- Stories
- —
- Garage
- 2 spaces
- Pool
- —
- Days on Market
- 28 days
- Listed
- Dec 11, 2020
- Last Updated
- Feb 22, 2021
- Price/Lot Sq.Ft.
- $55/ft²
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Same ZIP, similar price + bedrooms.
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SOLD$2,950,000
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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).
| 2/22/2021 | Sold | $2,699,000 |
| 12/11/2020 | Listed for sale | $2,699,000 |
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.
Kinderland4kidz LLCKG · private · 0.1 mi
- Biscayne Elementary School
PK,KG,1,2,3,4,5 · public · 0.1 mi
- Temple Menorah Early Childhood Center
PK,KG · private · 0.1 mi
- Yeshiva Elementary
PK,KG,1,2,3,4,5,6,7,8 · private · 0.1 mi
- Happy Kids Private School
KG,1,2 · private · 0.4 mi
- Gan Katan
PK,KG,1,2,3,4 · private · 0.5 mi
- Kid's Choice Learning Center
PK,TK,KG,1 · private · 0.6 mi
- Holy Spirit Church & Inst / Miami Beach Academy
PK,KG,1 · private · 0.6 mi
- Le Petit Papillon Montessori School
PK,TK,KG,1,2,3,4,5 · private · 0.6 mi
- St. Joseph's School
PK,KG,1,2,3,4,5,6,7,8 · private · 0.6 mi
Data provided by GreatSchools.org © 2026. All rights reserved.Estimated Monthly Payment
$16,764/mo
Principal & Interest
$14,365
Property Tax
$2,249
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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