NOT LISTED FOR SALE

Estimated Value: $2,855,622 - $3,295,000

3 Beds
3 Baths
2,600 Sq Ft
$1,213/Sq Ft Est. Value

Sale Details

Date Sold: April 9, 2026

Last sale price $3,250,000 $1,250 Per Sq Ft

Est. 3% decrease in value since last sale

Current estimated payment $19,299 / mo

12 Days on Market

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 2026

The 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

Mark Gable

Engel & Völkers Marathon License #3472303 Listed on: 02/20/2026

Engel & Völkers Marathon

Last Buyer's Agent

Sam Williams

Coldwell Banker Schmitt Real Estate Co. License #3186658

Coldwell Banker Schmitt Real Estate Co.

Range of Values:

--
Value Increase
--
Percent Increase
--
Adjusted for Inflation
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Average Value
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List Price
Sold Price
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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

Home Details

Home Type

Single Family

Est. Annual Taxes

$24,065

Year Built

Built in 1977 | Remodeled

Lot Details

0.36 Acres

Listing Details

  • Property Type: Residential
  • Style: Single Family
  • As Is Right To Inspect: Yes
  • First Right of Refusal: No
  • Mandatory HOA: No
  • Dockage Seawall: Concrete
  • Fee Includes: None
  • Handicap Access: Yes
  • Key Island: Key Colony
  • Limited Representation: No
  • Marathon Neighborhood: Marathon East - Gulf (Airport to Vaca)
  • Mile Marker: 53.50
  • Min Rental Days: 7.00
  • M L S Identifier: 20060123165453488875000000
  • Off Shore Island: No
  • Pets: Pets Allowed
  • Property Group I D: 19990816212109142258000000
  • Sale Terms: Cash
  • Side: Ocean
  • State Province: FL
  • Taxes: 24065.48
  • Vehicle Storage: Garage, Off Street Parking, Attached
  • Year Built: 1977
  • Alternate Key Number: 1081396
  • Cooling Heating: Central Air, Ceiling Fans(s)
  • Lot Sq Ft: 15891.00
  • Pool Info: In Ground
  • Porch Balcony: Open Porch/Balcony
  • Species List: No
  • Tax Exemptions: None
  • Building Style Above Flood: Yes
  • Building Style Stories: 2 Stories
  • Estimated Living Sq Ft: 2600.00
  • Pre Wired: Cable
  • Pre Wired Other: YES
  • Property Condition: Updated/Remodeled
  • Sewer Hook Up: Yes
  • Statistical Purposes Only: No
  • Special Features: None
  • Property Sub Type: Detached
  • Stories: 2

Interior Features

  • Interior Amenities: Pantry, Quartz Countertops, Window Treatments, Whirlpool Bath Tub, Storage, Elevator, Built-in Cabinets
  • Total Bathrooms: 3.00
  • Full Bathrooms: 3
  • Appliances: Washer, Microwave, Oven, Refrigerator, Dishwasher, Dryer
  • Specialty Rooms: Laundry Room, Workshop, Utility Room, Sauna/Steam Room
  • Total Bedrooms: 3
  • Sq Ft Remarks: Huge bonus space on ground floor, great for recreation room off the pool!

Exterior Features

  • Dockage: Boat Lift, Other Dockage, Basin
  • Waterfront: Canal Front, Open Water
  • Waterfront: Yes
  • Construction: CBS
  • Waterview: Canal View, Open Water View
  • Pool: Yes

Utilities

  • Utilities: Community Swr Plant, Municipal Sewer
  • Heating: Central

Lot Info

  • Deed Restrictions: Unknown
  • Flood Zone: AE
  • Parcel Number: 00075800-000000
  • Lot Size: X
  • Land Size: 1/4 - 1/2 Acre
  • Acres: 0.39

Rental Info

  • Rentals Allowed: With Restrictions
  • Furnished: Negotiable

Tax Info

  • Tax Year: 2025

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
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
$3,152,656

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
-7.69%
Original Mortgage
$1,999,000
Outstanding Balance
$1,992,406
Interest Rate
5.5%
Mortgage Type
New Conventional
Estimated Equity
$1,160,250

Purchase Details

Listed on
Nov 22, 2022
Closed on
Sep 26, 2023
Sold by
Bought by
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
Bought by

Purchase Details

Closed on
Apr 15, 2003
Sold by
Bought by

Purchase Details

Closed on
Oct 2, 1998
Sold by
Bought by

Purchase Details

Closed on
Jul 1, 1988
Bought by

Purchase Details

Closed on
Feb 1, 1975
Bought by
Source: Public Records

Home Values in the Area

Source: Public Records

Average Home Value in this Area





Source: Public Records

Agents Specializing in Key Colony Beach, FL

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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
$3,005,000 None Listed On Document
-- --
$1,040,000 --
$765,000 --
$500,000 --
$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 $565,000
Previous Owner $500,000
Previous Owner --
Previous Owner $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

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Map

Source: Marathon and Lower Keys Association of REALTORS®

MLS Number: 618752

APN: 00075800-000000

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