This home's estimate is 42.9% lower than the average sale price ($1.46M) of 6 comparable homes.
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421 3rd St, Key Colony, FL 33051
About this home
Close to open end of canal. 60ft concrete seawall with boat lift. Features two bedrooms, two bathrooms, immaculate! condition. This home is located in beautiful Key Colony Beach! Must See!

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Last updated October 2026
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Sale history for 421 3rd St
$821/sq ft
$896/sq ft
$968/sq ft
$1,043/sq ft
$938/sq ft
$638/sq ft
$656/sq ft
As the MLS and public records start to fill up, we'll list the details here.
Public record
Property details
Interior
- Interior Features
- Cooling/Heating: Central A/C
- Appliances: Dishwasher, Washer, Refrigerator, Range, Dryer
- Bathroom Information
- # of Full Baths: 2
Exterior
- Boat Slip/Dock Information
- Dockage: Boat Lift
- Property Features
- On Waterfront
- Waterfront Type: Canal Front
- Waterview: Canal View
- Property Information
- Deed Restrictions: Yes
- Pets: Pets Allowed
- Lot Information
- Acres: 0.14
- Zoning: R-1A - Key Colony Single Family
- Control Depth: 4
- Building Information
- Year Built: 1,959
- Building Style: Ground Level
- Construction: CBS
- Subdivision/Neighborhood
- Subdivision: Key Colony Beach (53.5)
Financial
- Tax Information
- Taxes: $2,382
- Tax Year: 2,004
- Tax Exemptions: None
- Financial Information
- Terms: Buyer Obtain Finance
Utilities
- Utility Information
- Utilities: Community Sewer Plant
Location
- Homeowners Association Information
- Fee Includes: None
- Location Information
- Side: Ocean
- Mile Marker: 54.00
- Neighborhood Features
- Beach
Public facts
- Beds: —
- Baths: —
- Sq. Ft.: —
- Stories: —
- Lot Size: —
- Style: Single Family Residential
- Year Built: —
- Year Renovated: —
- County: Monroe County
- APN: 00072830-000000
Around this home
Schools
- K - 12
- Preschool & daycare
Public PreK-5 • Assigned • 5.0mi
Public 6-12 • Assigned • 4.2mi
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
Minimal risk of a flood reaching the building in the next 30 years
Unlikely to be in a wildfire in next 30 years
We're working on getting current and accurate heat risk information for this home.
99% chance of strong winds in next 30 years
0 unhealthy days expected this year, 0 days in 30 years
Sun exposure
In this area, properties receive around 10 hours in June and 7.3 hours in December, placing it above the U.S. average for solar exposure.
Sell confidently with a local market expert in Key Colony. 3 minutes to get started.
Nearby similar homes



New listings for sale in 33051

Home values near 421 3rd St
| Address | Redfin Estimate |
|---|---|
2 Beds | 1 Baths | 1008 Sq. Ft. | $702,371 |
- Beds | 1 Baths | 2474 Sq. Ft. | $1,072,079 |
3 Beds | 2 Baths | 1264 Sq. Ft. | $867,086 |
3 Beds | 2 Baths | 1300 Sq. Ft. | $929,958 |
3 Beds | 2 Baths | 1430 Sq. Ft. | $584,825 |
3 Beds | 2 Baths | 1264 Sq. Ft. | — |
3 Beds | 2 Baths | 1430 Sq. Ft. | $640,471 |
| Address | Redfin Estimate |
|---|---|
2 Beds | 1 Baths | 1008 Sq. Ft. | $742,206 |
3 Beds | 3 Baths | 1372 Sq. Ft. | $1,296,783 |
2 Beds | 2 Baths | 1344 Sq. Ft. | — |
3 Beds | 2 Baths | 1268 Sq. Ft. | $748,632 |
3 Beds | 2 Baths | 1300 Sq. Ft. | $841,072 |
2 Beds | 2 Baths | 1008 Sq. Ft. | $858,171 |
3 Beds | 2 Baths | 1264 Sq. Ft. | $1,003,638 |
| Address | Redfin Estimate |
|---|---|
6 Beds | 6 Baths | 4708 Sq. Ft. | $2,638,707 |
3 Beds | 2 Baths | 1264 Sq. Ft. | $854,847 |
3 Beds | 2 Baths | 1264 Sq. Ft. | $863,387 |
3 Beds | 2 Baths | 1264 Sq. Ft. | $878,043 |
3 Beds | 2 Baths | 1300 Sq. Ft. | $797,520 |
3 Beds | 3 Baths | 1372 Sq. Ft. | $1,340,727 |
3 Beds | 2 Baths | 1264 Sq. Ft. | — |
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