770 9th St

Key Colony Beach, FL 33051

$3,850,000
Price
4
Beds
3,381 Sq. Ft.
$1,139 / Sq. Ft.
3,381
Sq. Ft.
$1,139
per Sq. Ft.
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a view of a house with pool and sitting area
a view of a house with a palm tree
a living room with furniture and a wooden floor
a view of a livingroom with furniture and wooden floor
a view of entryway with wooden floor and windows
a view of a dining room with furniture and wooden floor
a view of a dining room with furniture window and wooden floor
a living room with furniture and a flat screen tv
a living room with furniture and a flat screen tv
a kitchen with stainless steel appliances granite countertop wooden floor window and cabinets
a kitchen with stainless steel appliances kitchen island granite countertop a dining table chairs and white cabinets
a living room with furniture a dining table and chairs with wooden floor
a living room with furniture and kitchen view
a living room with furniture and a flat screen tv
a bathroom with a toilet a sink and mirror
a utility room with dryer and washer
a view of entryway and workspace
a bedroom with furniture and a wooden floor
a bedroom with a bed and a chandelier
a bathroom with a toilet a sink and a mirror
a bedroom with two beds and a chair
a bedroom with a bed and a chandelier
a bathroom with a tub sink and mirror
a bedroom with a large bed and a chandelier
a bathroom with a granite countertop sink a toilet and a shower
a view of a swimming pool with lawn chairs under an umbrella
a view of a house with backyard patio and swimming pool
a view of swimming pool with a yard
a view of a swimming pool with chairs
a view of a patio with a table and chairs
a view of a lake with a palm tree
a view of a terrace with a tree
a view of a lake with couches chairs and a table
a view of a chairs and table in patio with a lake view
a view of a swimming pool with lawn chairs under an umbrella
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a view of a city
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Description

Rare opportunity to own this corner bay front 4 bedroom 3.5 bath home in the loved neighborhood of Key Colony Beach located in Marathon! This home is newly renovated with one of the best views to sit back relax and enjoy the boats going by or having quick access to the Atlantic Ocean for optimal fishing, lobstering, diving, and stunning views on the boat. With plenty of deep water and a 60 ft dock with a 20,000-pound boatlift, water and electric at the dock, and fish cleaning station, everything...Rare opportunity to own this corner bay front 4 bedroom 3.5 bath home in the loved neighborhood of Key Colony Beach located in Marathon! This home is newly renovated with one of the best views to sit back relax and enjoy the boats going by or having quick access to the Atlantic Ocean for optimal fishing, lobstering, diving, and stunning views on the boat. With plenty of deep water and a 60 ft dock with a 20,000-pound boatlift, water and electric at the dock, and fish cleaning station, everything is ready to go for all your boating needs. But when it's time to relax enjoy the oasis of the pool that can be cooled for the summer or if you're wanting to escape a cold winter to the keys the pool can also be heated. Featuring inside there are 2 living rooms, a stunning kitchen, and custom wood stairs to go upstairs to the bedrooms, the primary has its own split stairs to its side for great privacy. There is also a mini primary bedroom with its own bathroom along with his and her closest. The property has been a very successful six figure earning rental when it is not being utilized by the owners. Having a 2 car garage, 4 car fitting driveway, and space to the left of the driveway for a boat trailer there is plenty of parking for guest and friends to come enjoy the stunning view and atmosphere of this property!
  1. Listed by Kim Hiers • Brokerage DRE #264634 • KELLER WILLIAMS CORNERSTONE RE
    P: (352)-586-4539 C: (352)-586-4539 kshidler@kw.com

Property Details for 770 9th Street

Subdivision Name
KEY COLONY BEACH 1ST ADD
Township
66S
Garage Spaces
2
View
Water
Waterfront
Yes
Water View
Bay/Harbor - Full
Furnished
Turnkey
LISTING UPDATED: 02/24/2026 06:59 AM

Property Details for 770 9th Street

StatusActive
MLS #OM719377
Days on Market33
Taxes$14,704 / year
HOA Fees-
Condo/Co-op Fees-
Compass TypeSingle Family
MLS TypeResidential / Single Family Residence
Year Built1993
Lot Size0.25 AC / 10,750 SF
CountyMonroe County
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Location

Listing Courtesy of KELLER WILLIAMS CORNERSTONE RE
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Building Information for 770 9th Street

Stories2Year Built1993Building Size-Lot Size0.25 AC / 10,750 SF

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$19,910 per month

30 year fixed, 6.11% Interest

Principal and Interest

$18,685

Property Taxes

$1,225

HOA Dues

$0

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Property Information for 770 9th Street

Summary
Location and General Information
  • Building Area Source: Public Records
  • Building Area Total: 4647.0
  • Building Area Units: Square Feet
  • Direction Faces: South
  • Directions: headed south on overseas HWY turn left onto Sadowski CSWY then a right onto W Ocean Dr, and a right onto 9th street, the house is the very end on the right
  • Mls Major Change Type: New Listing
  • Major Change Type: New Listing
  • Listing Service: Full Service
  • Road Frontage Type: Street Paved
  • Senior Community: No
  • Unit Number: No
  • Street Number: 770
  • Street Name: 9TH
  • Street Suffix: STREET
  • State: FL
  • City: KEY COLONY BEACH
Parking
  • Attached Garage: Yes
  • Carport: No
  • Garage: Yes
Taxes and HOA Information
  • Association: No
  • CDD: No
  • Tax Block: 9
  • Tax Book Number: 4-11
  • Tax Legal Description: BK 9 N 1/2 LT 33 KEY COLONY BEACH FIRST ADDN AMD PLAT PB4-11 OR411-483 OR792-386D/C OR792-387 OR792-388 OR792-389 OR974-216 OR1201-452/65MERG OR1946-866/67 OR2699-374/75
  • Tax Lot: 33
  • Tax Year: 2025
Virtual Tour
Property
Lot Information
  • Additional Parcels: No
  • Lot Features: Corner Lot
  • Parcel Number: 00075110000000
  • Total Acreage: 1/4 to less than 1/2
  • Water Access: Bay/Harbor, Canal - Saltwater, Gulf/Ocean
  • Water Access: Yes
  • Water Extras: Lift, Seawall - Concrete
  • Water Extras: Yes
  • Water: Lift, Seawall - Concrete
  • Zoning: INC
  • Living Area: 3381
Property and Assessments
  • Year Built Numeric: 1993
  • Flood Zone Code: AE8
  • Homestead: No
  • New Construction: No
  • Public Survey Range: 33E
  • Public Survey Section: 5
  • Dock YN: Yes
  • Dock Description: Dock - Composite, Dock - Open, Dock w/Electric, Dock w/Water Supply, Fish Cleaning Station, Lift
  • Dock Lift Capacity: 20000
  • Dock Year Built: 2017
  • Dock Dimensions: 5x60
Utilities
  • Sewer: Public Sewer
  • Utilities: Cable Connected, Sewer Connected, Water Connected
  • Water Source: Public
Interior and Exterior Features
Exterior Features
  • Construction Materials: Stucco
  • Exterior Features: Private Yard
  • Foundation Details: Slab
  • Levels: Two
  • Pool Features: Heated, In Ground
  • Pool Private: Yes
  • Pool: Private
  • Pool Private: Yes
  • Roof: Tile
  • Waterfront Features: Bay/Harbor
  • Waterfront Feet Total: 150
  • Number Of Stories: 2
Interior Features
  • Bedrooms Total: 4
  • Bathrooms Full: 3
  • Appliances: Dishwasher, Dryer, Ice Maker, Microwave, Refrigerator, Washer
  • Cooling: Central Air
  • Fireplace: No
  • Flooring: Tile, Vinyl
  • Heating: Electric
  • Interior Features: PrimaryBedroom Upstairs, Stone Counters, Thermostat, Walk-In Closet(s)
  • Laundry Features: Laundry Room
  • Living Area Source: Public Records
  • Living Area Units: Square Feet
  • Room Count: 3.0
  • Water View: Yes
  • Bathrooms Half: 1

Property History for 770 9th Street

DateEvent & SourcePriceAppreciation
Feb 23, 2026

Listed (Active)

MFRMLS #OM719377

$3,850,000—
Dec 27, 2018

Sold (Public Record)

Public Record #637833978

$100—
Aug 13, 2014

Sold

FKMLS #564997

$1,375,000—
Aug 13, 2014

Pending

FKMLS #564997

—
Aug 13, 2014

Listed (Active)

FKMLS #564997

$1,500,000—
Apr 9, 2014

Expired

FKMLS #562246

—
Oct 9, 2013

Listed (Active)

FKMLS #562246

$1,600,000—
DateEvent & SourcePrice
02/23/2026

Listed (Active)

MFRMLS #OM719377

$3,850,000
12/27/2018

Sold (Public Record)

Public Record #637833978

$100
08/13/2014

Sold

FKMLS #564997

$1,375,000
08/13/2014

Pending

FKMLS #564997

—
08/13/2014

Listed (Active)

FKMLS #564997

$1,500,000
04/09/2014

Expired

FKMLS #562246

—
10/09/2013

Listed (Active)

FKMLS #562246

$1,600,000

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Public Records for 770 9th Street

Taxable ValueLand$789,480Additions$758,063Total$1,547,543
Tax Record2024$13,700 ($1,142 / month)
Home Facts
Beds4Baths2.5Total Finished SqFt3,381 SqFtAbove Grade Finished SqFt3,381 SqFtStories2Lot Size10,747 SqFtStyleSingle Family ResidenceYear Built1993Year Renovated2003CountyMONROEAPN00075110-000000

Schools near 770 9th Street

This home is within Monroe.
Rating
School
Type
Grades
Distance
Stanley Switlik Elementary School
Public - PK to 5
Marathon School
Public - 6 to 12
Coral Shores High School
Public - 9 to 12
Big Pine Academy
Charter - PK to 5
Rating
School
Distance
Stanley Switlik Elementary School
PublicPK to 5

Marathon School
Public6 to 12

Coral Shores High School
Public9 to 12

Big Pine Academy
CharterPK to 5

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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More information about 770 9th Street, Key Colony Beach, FL 33051

770 9th Street is a single family home for sale in Key Colony Beach, FL 33051. This property was listed for sale on February 23, 2026 by KELLER WILLIAMS CORNERSTONE RE, it's currently listed at $3,850,000. It has been on the market for a total of 33 days and was last sold on December 27, 2018. This listing's school district is Monroe. Nearby schools include Stanley Switlik Elementary School, Marathon School and Coral Shores High School. 770 9th Street is a 4-bed, 4-bath, 3,381 sqft single family home built in 1993.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity. Subject to change at any time. Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties make no guarantee, warranty or representation regarding the accuracy of any waterfront feature, water view or waterfront view.

Listing Courtesy of KELLER WILLIAMS CORNERSTONE RE

Based on information from one of the following Multiple Listing Services: Beaches Multiple Listing Service, Inc., Martin County REALTORS® of the Treasure Coast, Inc., Miami Association of REALTORS®. Information being provided is for the visitor’s personal, noncommercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. The data contained herein is copyrighted by Beaches Multiple Listing Service, Inc., Martin County REALTORS® of the Treasure Coast, Inc., Miami Association of REALTORS® is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited. Property information referenced on this web site comes from the Internet Data Exchange (IDX) program of the MLS. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. For the avoidance of doubt, the accuracy of all information, regardless of source, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals.