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$3,850,000
17 Days On Site

770 9TH STREET
KEY COLONY BEACH, FL 33051

For Sale|Single Family Residence|Active
4
Beds
4
Total Baths
3
Full Baths
1
Partial Bath
3,381
SqFt
$1,139
/SqFt
1993
Built
Subdivision:
KEY COLONY BEACH 1ST ADD
County:
Monroe
Call Now: 561-351-5096
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561-351-5096
770 9TH STREET770 9TH STREET770 9TH STREET770 9TH STREET
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Mortgage Calculator

Monthly Payment (Est.)

$17,565
Calculator powered by Showcase IDX, a Constellation1 Company. Copyright ©2026 Information is deemed reliable but not guaranteed.

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!

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Listing Snapshot
Price 
$3,850,000
Days On Site 
17 Days
Bedrooms 
4
Inside Area (SqFt) 
3,381 sqft
Total Baths 
4
Full Baths 
3
Partial Baths 
1
Lot Size 
0.25 Acres
Year Built 
1993
MLS® Number 
OM719377
Status 
Active
Property Tax 
$14,704.27
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
Public Records
Friends & Family
Recent Activity
2 weeks agoListing updated with changes from the MLS®
3 weeks agoListing first seen on site
General Features
Acres 
0.25
Attached Garage 
Yes
Direction Faces 
South
Foundation 
Slab
Garage 
Yes
Garage Spaces 
2
Levels 
Two
Number Of Stories 
2
Parking 
Attached
Property Sub Type 
Single Family Residence
Sewer 
Public Sewer
SqFt Total 
4647
Utilities 
Cable AvailableCable ConnectedSewer ConnectedWater Connected
Water Source 
Public
Zoning 
INC
Interior Features
Appliances 
DishwasherDryerIce MakerMicrowaveRefrigeratorWasher
Cooling 
Central Air
Flooring 
TileVinyl
Heating 
Electric
Interior 
Stone CountersWalk-In Closet(s)
Laundry Features 
Laundry Room
Kitchen 
Level - First
Living Room 
Level - First
Master Bedroom 
Level - Second
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Exterior Features
Construction Details 
Stucco
Exterior 
Private YardDock
Lot Features 
Corner LotPavedWaterfront
Pool Features 
HeatedIn GroundPrivate
Private Pool 
Yes
Roof 
Tile
View 
Water
Waterfront 
Yes
Waterview 
Water
Community Features
Financing Terms Available 
CashConventional
MLS Area 
33051 - Key Colony Beach
Roads 
Paved
Township 
66S
Listing courtesy of KELLER WILLIAMS CORNERSTONE RE (352) 586-4539



Listing information is provided by Participants of the Stellar MLS. IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. Properties displayed may be listed or sold by various participants in the MLS Copyright 2026, Stellar MLS.
Last checked: 2026-03-13 11:02 AM EDT

Neighborhood & Commute
Source: Walkscore
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