Welcome to Morton Manor, an exceptional gulf-side waterfront estate set on 2.82 private acres where luxury, privacy, and resort-style living come together in this extraordinary Florida Keys compound. Encompassing 8,515 sq. ft. of living space, this property features a 5-bedroom, 4.5 bath CBS main residence accompanied by two detached guest homes and a garage apartment, offering a total of 11 bedrooms and 8.5 baths designed to comfortably accommodate family and guests alike. The main home showcases an open-concept floor plan with expansive living and dining areas, two wet bars, elevator access, multiple laundry areas, and spacious guest accommodations, creating an ideal setting for both everyday living and large-scale entertaining. The detached bungalows and garage apartment provide additional flexibility for extended family, visitors, or exceptional rental opportunities while maintaining privacy throughout the estate. Impact-rated windows and doors, a durable metal roof, and quality construction provide lasting peace of mind. The outdoor amenities rival those of a private resort. Relax beside the pool, gather beneath multiple tiki huts, challenge friends to a game on the pickleball court or putting green and enjoy beautifully landscaped grounds. Boating enthusiasts will appreciate the 100' dock complete with 30-amp and 50-amp shore power, yacht dockage and 10K & 20K lb boat lifts. Positioned on the gulfside, the property offers easy access to world-class fishing, boating, snorkeling coves, sandbars, and unforgettable sunset cruises. Dining, marinas, and shopping are less than ten minutes away, and the Florida Keys Marathon International Airport is approximately 4 miles from the property for seamless private aviation access. Whether you're searching for a private family compound or an exceptional investment opportunity, Morton Manor offers a rare combination of acreage, waterfront living, luxury amenities, and versatility that is seldom found in the Florida Keys.
For sale
$14,995,000
57733 Morton St, Grassy Key, FL 33050
11beds
8,515sqft
Single Family Residence
Built in 2001
2.82 Acres Lot
$-- Zestimate®
$1,761/sqft
$-- HOA
What's special
Elevator accessSpacious guest accommodationsGarage apartmentRelax beside the poolDurable metal roofTwo detached guest homesOpen-concept floor plan
- 76 days
- 1,883
- 97
Zillow last checked:
Listing updated:
Listed by:
Lisa H Ferringo 305-797-1221,
Coldwell Banker Schmitt Real Estate Co
Source: FLKMLS,MLS#: 620489
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 11
- Bathrooms: 9
- Full bathrooms: 8
- 1/2 bathrooms: 1
Cooling
- Central Air
Appliances
- Included: Washer, Dryer, Dishwasher, Refrigerator, Range, Oven, Microwave, Ice Maker, Wine Cooler, Stainless Steel Appliance(s)
- Laundry: Laundry Room
Features
- Built-in Features, Elevator, Storage, Walk-in Closet(s), Bar, Tray Ceiling(s)
- Flooring: Tile
Interior area
- Total structure area: 8,515
- Total interior livable area: 8,515 sqft
Video & virtual tour
Property
Parking
- Parking features: Open, RV Access/Parking, Storage
- Has garage: Yes
- Has uncovered spaces: Yes
Features
- Patio & porch: Patio
- Exterior features: Chickee Hut, Fruit Tree(s), Lighting, Sandy Beach, Storage, Tennis Court(s)
- Has private pool: Yes
- Pool features: In Ground
- Has spa: Yes
- Spa features: Heated
- Fencing: Fenced
- On waterfront: Yes
Lot
- Size: 2.82 Acres
Details
- Additional structures: Guest House
- Parcel number: 00375020000000
- Zoning: RM - Residential Medium
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Materials
- CBS, Combo Construction
Condition
- Updated/Remodeled
- New construction: No
- Year built: 2001
Community & HOA
Community
- Security: Security Gate
- Subdivision: Crains Sub (58.0)
HOA
- Has HOA: Yes
- Services included: None
Location
- Region: Grassy Key
Financial & listing details
- Price per square foot: $1,761/sqft
- Tax assessed value: $4,232,611
- Annual tax amount: $40,702
- Date on market: 7/2/2026
- Listing terms: Cash,Conventional
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 7/2/2026 | Listed for sale | $14,995,000+552%$1,761/sqft |
Source: | ||
| 8/20/2021 | Sold | $2,300,000-6.1%$270/sqft |
Source: | ||
| 3/25/2021 | Contingent | $2,450,000$288/sqft |
Source: | ||
| 2/23/2021 | Listed for sale | $2,450,000$288/sqft |
Source: | ||
| 2/15/2021 | Contingent | $2,450,000$288/sqft |
Source: | ||
| 2/24/2020 | Price change | $2,450,000-0.8%$288/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #582147 Report a problem | ||
| 2/17/2020 | Price change | $2,470,000-0.8%$290/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #582147 Report a problem | ||
| 2/10/2020 | Price change | $2,490,000-0.8%$292/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #582147 Report a problem | ||
| 2/3/2020 | Price change | $2,510,000-0.8%$295/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #582147 Report a problem | ||
| 1/27/2020 | Price change | $2,530,000-0.8%$297/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #582147 Report a problem | ||
| 1/20/2020 | Price change | $2,550,000-0.8%$299/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #582147 Report a problem | ||
| 1/13/2020 | Price change | $2,570,000-0.8%$302/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #582147 Report a problem | ||
| 1/6/2020 | Price change | $2,590,000-0.8%$304/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #582147 Report a problem | ||
| 12/30/2019 | Price change | $2,610,000-0.8%$307/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #582147 Report a problem | ||
| 12/24/2019 | Price change | $2,630,000-0.8%$309/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #582147 Report a problem | ||
| 10/3/2018 | Listed for sale | $2,650,000$311/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #582147 Report a problem | ||
| 6/30/2018 | Listing removed | $2,650,000$311/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #566232 Report a problem | ||
| 1/4/2015 | Listed for sale | $2,650,000+68%$311/sqft |
Source: Coldwell Banker Schmitt Real Estate Co. #566232 Report a problem | ||
| 12/31/2014 | Sold | $1,577,500+218.7%$185/sqft |
Source: Public Record Report a problem | ||
| 4/17/1995 | Sold | $495,000$58/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $40,703 +15.8% | $4,232,611 +26.7% |
| 2024 | $35,151 +3.8% | $3,341,866 +10% |
| 2023 | $33,867 +4.4% | $3,038,060 +1.9% |
| 2022 | $32,427 +13.6% | $2,981,210 +20.6% |
| 2021 | $28,554 -1.9% | $2,472,162 -1% |
| 2020 | $29,114 | $2,496,439 -0.7% |
| 2019 | $29,114 -0.6% | $2,515,093 +4.1% |
| 2018 | $29,304 +6.8% | $2,416,128 +5.5% |
| 2017 | $27,432 +4.4% | $2,290,586 +6.5% |
| 2016 | $26,267 +2.5% | $2,150,862 -8.3% |
| 2015 | $25,621 | $2,345,795 |
Find assessor info on the county website
Monthly payment
Est. payment


