Zephyr Cove; the extravagant aquatically inspired retreat that you deserve. Located on the breathtaking waterfront nestled along the Gulf and designed and built by D'Asign Source. This stunning estate invites you to experience the perfect balance of luxury, tranquility, and adventure. With both fresh and saltwater elements woven into its design, every detail has been thoughtfully crafted. At the heart of the property lies a lazy river loop infinity pool, complete with bridges, swim-up pool bar in gazebo, spa with table, lap pool, beach-style entries, and waterfall grotto plus gas fire pit, putting green, and tropical gardens. From floating under the sun, entertaining guests, or enjoying a peaceful evening by the water, this home was manifested for unforgettable moments.Grand main residence vaunts an impressive private primary wing and elegant open spaces designed for comfort and entertainment. Indoor amenities include a temperature-controlled wine room, game room, home theater, fitness center, and conference room; endless ways to unwind and enjoy life. Two additional charming two-bedroom villas and a separate two-bedroom guest house are perched next door, perfect for hosting family and friends with style and privacy.Designed for the ultimate coastal lifestyle with outdoor kitchen and dining areas set against breathtaking Gulf views, ideal for entertaining or simply soaking in the beauty of your surroundings. Ample dockage and multiple boat lifts for your toys, located right between Vaca cut and Tom's Harbor Cut for easy Ocean access. Expansive garages and storage spaces provide ample room for vehicles, boats, and all essentials. Whole-home 130kw generator in its own private structure, ensuring peace of mind no matter the season. This is where everyday life feels like you're being pampered at a lavish resort. Step into a world where the beauty of nature meets unparalleled craftsmanship and let the magic of the Gulf welcome you home. 15 min to private airport.
New construction
$35,000,000
57223 Morton St, Grassy Key, FL 33050
9beds
9,530sqft
Single Family Residence
Built in 2022
1.88 Acres Lot
$-- Zestimate®
$3,673/sqft
$-- HOA
What's special
Waterfall grottoTropical gardensHome theaterGame roomImpressive private primary wingFitness centerPutting green
- 496 days |
- 4,674 |
- 233 |
Zillow last checked:
Listing updated:
Listed by:
Sabrina Wampler & Sarah Ewald 305-393-0585,
Ocean Sotheby's International Realty
Source: FLKMLS,MLS#: 613902
Originating MLS: Florida Keys
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Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 9
- Bathrooms: 10
- Full bathrooms: 9
- 1/2 bathrooms: 1
Heating
- Central, Electric
Cooling
- Central Air, Ceiling Fans(s)
Appliances
- Included: Washer, Stainless Steel Appliance(s), Wine Cooler, Ice Machine, Gas Appliances, Oven, Range, Refrigerator, Dishwasher, Dryer
- Laundry: Laundry Room
Features
- Wet Bar, Elevator, Bar, Walk-In Closet(s), Storage, Entrance Foyer, Pantry, Split Bedroom, Cathedral Ceiling(s), Gym, Utility Room, Sauna/Steam Room, Theater Room, Media Room, Sound System
- Doors: Impact Rstnce Doors
- Windows: Impact Rstnce Window
- Furnished: Yes
Interior area
- Total interior livable area: 9,530 sqft
Video & virtual tour
Property
Parking
- Total spaces: 4
- Parking features: Garage, Trailer Storage, Covered, RV Parking Open, Guest, Open, Garage Door Opener, Attached
- Has attached garage: Yes
- Has uncovered spaces: Yes
Features
- Patio & porch: Open Porch/Balcony, Patio
- Exterior features: Bar, Storage, Sprinkler System, Outdoor Kitchen, Lighting, Built-in Barbecue, Boat Slip
- Has private pool: Yes
- Pool features: In Ground, Lap, Above Ground
- Has spa: Yes
- Spa features: Private
- Fencing: Privacy,Fenced
- Has view: Yes
- View description: Bay/Gulf View, Water
- Has water view: Yes
- Water view: Bay/Gulf View,Water
- Waterfront features: Bay Front, Open Water, Gulf Front, Waterfront, Dockage: Boat Lift, Basin, Boat Slip, Boat Ramp
Lot
- Size: 1.88 Acres
- Features: 1 Less Than 2 Acres
Details
- Additional structures: Workshop, Guest House
- Parcel number: 00099460000000
- Zoning: RM
- Zoning description: Residential Medium
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Materials
- CBS, Concrete
- Roof: Metal
Condition
- New Construction
- New construction: Yes
- Year built: 2022
Utilities & green energy
- Electric: Generator
- Sewer: Public Sewer
- Utilities for property: FKAA, Sewer Available
Green energy
- Energy efficient items: Lighting
Community & HOA
Community
- Features: Beach
- Security: Security System, Electric Gate
- Subdivision: Crains Sub (58.0)
HOA
- Has HOA: No
- Services included: None
Location
- Region: Grassy Key
Financial & listing details
- Price per square foot: $3,673/sqft
- Tax assessed value: $10,467,645
- Annual tax amount: $47,748
- Date on market: 2/26/2025
- Listing terms: Cash
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 4/9/2025 | Listed for sale | $35,000,000+1455.6%$3,673/sqft |
Source: FLKMLS #613902 Report a problem | ||
| 8/10/2018 | Sold | $2,250,000-16.5%$236/sqft |
Source: | ||
| 8/3/2018 | Pending sale | $2,695,000$283/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #569307 Report a problem | ||
| 2/6/2016 | Listed for sale | $2,695,000$283/sqft |
Source: Visual Tour #569307 Report a problem | ||
| 12/20/2015 | Listing removed | $2,695,000$283/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #569307 Report a problem | ||
| 6/10/2014 | Listed for sale | $2,695,000$283/sqft |
Source: Coldwell Banker Schmitt #119916 Report a problem | ||
| 5/1/2014 | Listing removed | $2,695,000$283/sqft |
Source: RE/MAX Marathon Vacation Real Estate #562436 Report a problem | ||
| 11/2/2013 | Price change | $2,695,000-10%$283/sqft |
Source: RE/MAX MARATHON VACATION #562436 Report a problem | ||
| 3/23/2013 | Price change | $2,995,000-29.5%$314/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #546606 Report a problem | ||
| 10/9/2008 | Price change | $4,250,000-12.4%$446/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #546606 Report a problem | ||
| 10/5/2008 | Listed for sale | $4,850,000$509/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #546606 Report a problem | ||
| 5/16/2008 | Listing removed | $4,850,000$509/sqft |
Source: Number1Expert #530661 Report a problem | ||
| 4/26/2008 | Listed for sale | $4,850,000+470.6%$509/sqft |
Source: Number1Expert #530661 Report a problem | ||
| 7/20/1999 | Sold | $850,000$89/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $46,571 -2.5% | $5,199,114 +2.9% |
| 2024 | $47,748 +2.7% | $5,052,589 +6.6% |
| 2023 | $46,477 +73.2% | $4,739,408 +79.9% |
| 2022 | $26,839 +5.4% | $2,633,887 +10.4% |
| 2021 | $25,474 +28.3% | $2,386,436 +29.2% |
| 2020 | $19,852 | $1,847,799 +1.1% |
| 2019 | $19,852 +3.1% | $1,826,936 -1.5% |
| 2018 | $19,258 +5.3% | $1,855,394 +20.4% |
| 2017 | $18,290 +12% | $1,540,901 -3.6% |
| 2016 | $16,325 -6% | $1,597,968 -5.1% |
| 2015 | $17,359 | $1,683,217 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Climate risks
Neighborhood: 33050
Nearby schools
GreatSchools rating
- 5/10Stanley Switlik Elementary SchoolGrades: PK-5Distance: 8.4 mi
- 5/10Marathon SchoolGrades: 6-12Distance: 7.7 mi
A local agent can set up tours, give advice and negotiate with sellers.
- Florida
- Monroe County
- Marathon
- 33050
- 57223 Morton St


