Derek Varona
Sea Grove Realty
(786) 460-5548
104 Total Sales
4 in Key Colony Beach
$599,000 Price Range
781 9th St Key Colony Beach, FL 33051
Key Colony Beach AreaEstimated Value: $3,115,811 - $3,307,000
3
Beds
3
Baths
2,600
Sq Ft
$1,242/Sq Ft
Est. Value
Highlights
- Steam Room
- Boat Lift
- 0.39 Acre Lot
- Coral Shores High School Rated A
- In Ground Pool
- Home fronts a canal
About This Home
As of April 2026The Ultimate Keys Compound: A Shelter Bay MasterpieceWelcome to your dream home in Key Colony Beach. Perched on a premier 0.39-acre point lot, 781 9th Street offers an unparalleled 276 feet of deep-water frontage, making it a crown jewel for serious offshore anglers and sunset seekers alike.Step inside to an airy, open-concept sanctuary where the line between indoors and outdoors disappears. Take the elevator to the gourmet kitchen which serves as the heart of the home, featuring premium appliances, island, and abundant cabinetry space, perfect for hosting apres-sea gatherings. The master suite is a private retreat with direct access to the wraparound balcony with amazing westward views and a spa-like ensuite bathroom featuring a jetted tub and a separate walk-in shower.The exterior is designed for the ''Keys Life'' at its most vibrant. Whether you're launching a world-class fishing expedition from your 55-foot cut-in slip or enjoying a ''staycation'' by the resort-style pool, the amenities are endless. Kids and adults alike will love the 9-foot deep pool with its own waterslide and splash pad. As the sun sets over Shelter Bay, move to the outdoor kitchen and bar to grill your fresh catch while catching the game on the outdoor TV and enjoying a beautiful Keys Sunset within view to the west.Located in the prestigious Key Colony Beach community, you are just a short boat ride (5 miles) from the iconic Sombrero Light and world-class diving. Enjoy the amenities of KCB, a marina, parks, shops, restaurants, tennis courts, and nearby golf, all while maintaining the seclusion of a private gated, point-lot estate. Large vessels are no problem here with a deep water 55x24 protected slip, and additional boat lift and all the seawall you could want for multiple water toys! Draft is no problem for larger vessels.
Last Agent to Sell the Property
Engel & Völkers Marathon License #3472303 Listed on: 02/20/2026
Create a Home Valuation Report for This Property
The Home Valuation Report is an in-depth analysis detailing your home's value as well as a comparison with similar homes in the area
Home Details
Home Type
- Single Family
Est. Annual Taxes
- $24,065
Year Built
- Built in 1977 | Remodeled
Lot Details
- 15,891 Sq Ft Lot
- Home fronts a canal
- Property is zoned R-1A - Key Colony Single Family
Interior Spaces
- 2,600 Sq Ft Home
- Elevator
- Ceiling Fan
- Window Treatments
- Workshop
- Storage
- Utility Room
- Steam Room
- Canal Views
Kitchen
- Oven
- Microwave
- Dishwasher
- Quartz Countertops
- Built-In or Custom Kitchen Cabinets
Bedrooms and Bathrooms
- 3 Bedrooms
- 3 Full Bathrooms
- Whirlpool Bathtub
Laundry
- Laundry Room
- Dryer
- Washer
Parking
- Garage
- Off-Street Parking
Accessible Home Design
- Handicap Accessible
Outdoor Features
- In Ground Pool
- Seawall
- Boat Lift
- Balcony
Utilities
- Central Heating and Cooling System
- Public Hookup Available For Sewer
- Community Sewer or Septic
- Cable TV Available
Community Details
- No Home Owners Association
- Key Colony Bch 1St Addn Amd Plat Subdivision
- Rental Restrictions
Listing and Financial Details
- Minimum Rental Period: 7
- Assessor Parcel Number 00075800-000000
Ownership History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
Date
Name
Owned For
Owner Type
Purchase Details
Listed on
Feb 20, 2026
Closed on
Apr 7, 2026
Sold by
Gilman Jr John
Bought by
Seller's Agent
Mark Gable
Engel & Völkers Marathon
Buyer's Agent
Sam Williams
Coldwell Banker Schmitt Real Estate Co.
List Price
$3,250,000
Sold Price
$3,250,000
Views
14
Current Estimated Value
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
-$97,344
Avg. Annual Appreciation
-1.48%
Original Mortgage
$1,999,000
Outstanding Balance
$1,992,406
Interest Rate
5.5%
Mortgage Type
New Conventional
Estimated Equity
$1,237,797
Purchase Details
Listed on
Nov 22, 2022
Closed on
Sep 26, 2023
Sold by
Gessell Francis C
Bought by
Gilman John D
Seller's Agent
Sam Williams
Coldwell Banker Schmitt Real Estate Co.
Buyer's Agent
Mark Gable
Engel & Völkers Marathon
List Price
$3,250,000
Sold Price
$3,005,000
Premium/Discount to List
-$245,000
-7.54%
Views
403
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
3.13%
Original Mortgage
$295,000
Interest Rate
7.09%
Mortgage Type
Seller Take Back
Purchase Details
Closed on
Dec 6, 2004
Sold by
Gessell Frank C and Gessell Helen L
Bought by
Gessell Francis C and Gessell Helen L
Purchase Details
Closed on
Apr 15, 2003
Sold by
Smith Jeremiah R
Bought by
Gessell Frank C and Gessell Helen L
Purchase Details
Closed on
Oct 2, 1998
Sold by
Cerchio Gabriel G and Cerchio Patricia L
Bought by
Smith Jeremiah R
Purchase Details
Closed on
Jul 1, 1988
Bought by
Gessell Francis C
Purchase Details
Closed on
Feb 1, 1975
Bought by
Gessell Francis C
Home Values in the Area
Average Home Value in this Area
Agents Specializing in Key Colony Beach, FL
-
Derek Varona
-
Rafael Monterrey
Rafael Monterrey
Balistreri Real Estate Inc
(844) 721-4864
160 Total Sales
2 in Key Colony Beach
$449,000 Price Range
-
Ismaris Texidor
Ismaris Texidor
Real Estate Sales Force
(786) 891-8625
42 Total Sales
3 in Key Colony Beach
$1,275,000 Price Range
-
Carolyn Ambler
Carolyn Ambler
American Caribbean Real Estate, Christie's International Real Estate
(475) 231-4734
36 Total Sales
1 in Key Colony Beach
$1,900,000 Price
-
Joshua Mothner
Joshua Mothner
Coldwell Banker Schmitt Real Estate Co.
(786) 751-4280
108 Total Sales
16 in Key Colony Beach
$365K - $1.7M Price Range
-
Bernice Schafer
Bernice Schafer
Vested Palm Real Estate and Home Services
(888) 614-9574
63 Total Sales
2 in Key Colony Beach
$929,000 Price Range
Purchase History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Buyer | Sale Price | Title Company |
|---|---|---|---|
| $3,250,000 | None Listed On Document | ||
| Gilman John D | $3,005,000 | None Listed On Document | |
| Gessell Francis C | -- | -- | |
| Gessell Frank C | $1,040,000 | -- | |
| Smith Jeremiah R | $765,000 | -- | |
| Gessell Francis C | $500,000 | -- | |
| Gessell Francis C | $32,500 | -- |
Source: Public Records
Mortgage History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Status | Borrower | Loan Amount |
|---|---|---|---|
| Open | $1,999,000 | ||
| Previous Owner | Gilman John D | $565,000 | |
| Previous Owner | Gilman John D | $500,000 | |
| Previous Owner | -- | -- | |
| Previous Owner | Gilman John D | $295,000 |
Source: Public Records
Property History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Event | Price | List to Sale | Price per Sq Ft | Prior Sale |
|---|---|---|---|---|---|
| 04/09/2026 04/09/26 | Sold | $3,250,000 | 0.0% | $1,250 / Sq Ft | |
| 03/04/2026 03/04/26 | Pending | -- | -- | -- | |
| 02/20/2026 02/20/26 | For Sale | $3,250,000 | +8.2% | $1,250 / Sq Ft | |
| 09/26/2023 09/26/23 | Sold | $3,005,000 | -7.5% | $1,156 / Sq Ft | View Prior Sale |
| 05/30/2023 05/30/23 | For Sale | $3,250,000 | 0.0% | $1,250 / Sq Ft | |
| 05/30/2023 05/30/23 | Price Changed | $3,250,000 | +8.2% | $1,250 / Sq Ft | |
| 03/10/2023 03/10/23 | Off Market | $3,005,000 | -- | -- | |
| 02/02/2023 02/02/23 | Price Changed | $3,450,000 | -6.1% | $1,327 / Sq Ft | |
| 11/22/2022 11/22/22 | For Sale | $3,674,900 | -- | $1,413 / Sq Ft |
Source: Marathon and Lower Keys Association of REALTORS®
Tax History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2025 | $24,065 | $2,543,723 | $1,438,266 | $1,105,457 |
| 2024 | $15,235 | $2,488,669 | $1,566,220 | $922,449 |
| 2023 | $15,235 | $1,742,922 | $0 | $0 |
| 2022 | $14,314 | $1,633,312 | $0 | $0 |
| 2021 | $13,591 | $1,353,970 | $0 | $0 |
| 2020 | $12,897 | $1,329,395 | $0 | $0 |
| 2019 | $12,629 | $1,300,466 | $0 | $0 |
| 2018 | $12,152 | $1,300,744 | $0 | $0 |
| 2017 | $11,694 | $1,282,141 | $0 | $0 |
| 2016 | $12,498 | $1,362,235 | $0 | $0 |
| 2015 | $12,284 | $1,330,389 | $0 | $0 |
| 2014 | $12,149 | $1,276,986 | $0 | $0 |
Source: Public Records
Agents Affiliated with this Home
-
Mark Gable
Seller's Agent in 2026
Mark Gable
Engel & Völkers Marathon
(305) 561-6091
91 Total Sales
-
Sam Williams
Buyer's Agent in 2026
Sam Williams
Coldwell Banker Schmitt Real Estate Co.
(305) 289-6532
432 Total Sales
Map
Source: Marathon and Lower Keys Association of REALTORS®
MLS Number: 618752
APN: 00075800-000000
Nearby Homes
- 790 10th St
- 651 9th St
- 800 11th St
- 611 8th St
- 1220 122nd Street Ocean
- 900 Dr
- 580 & 590 10th St
- 820 12th St
- 581 10th St
- 12399 Overseas Hwy Unit 12
- 12399 Overseas Hwy Unit 41
- 12399 Overseas Hwy Unit 22
- 490 10th St
- 70 7th St
- 440 9th St
- 390 13th St
- 441 10th St
- 12411 Overseas Hwy
- 12411 Overseas Hwy Unit 37C
- 12411 Overseas Hwy Unit 28A
Your Personal Tour Guide
Ask me questions while you tour the home.