This home's estimate is 23.6% lower than the average sale price ($1.38M) of 6 comparable homes.
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280&29 3rd St, Key Colony, FL 33051
About this home
EXCELLENT INVESTMENT OPPORTUNITY IN KEY COLONY BEACH. Full Duplex, 2 BR, 2BA each side. Stilt home on large lot. Room for a pool or expansion. Buy the entire duplex, or half. See MLS 521620, 521621. Combine with an oceanfront membership to the Cabana Club and enjoy all of the amenities of living in Key Colony Beach. Least expensive duplex in Key Colony.

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Last updated October 2026
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Sale history for 280&29 3rd St
$456/sq ft
$488/sq ft
As the MLS and public records start to fill up, we'll list the details here.
Public record
Property details
Parking
- Parking / Garage Information
- Vehicle Storage: Car(s): 4+
Interior
- Interior Features
- Flooring: Combo
- Cooling/Heating: Ceiling Fans, Central A/C
- Appliances: Dishwasher, Refrigerator, Range
- Furnished: Unfurnished
- Bathroom Information
- # of Full Baths: 4
Exterior
- Boat Slip/Dock Information
- Dockage: None
- Exterior Features
- Porch/Balcony: Open Porch/Balcony
- Property Features
- Waterfront Type: None
- Waterview: No Waterview
- Property Information
- Deed Restrictions: Unknown
- Lot Information
- Acres: 0.14
- Zoning: R-2A - Key Colony Two Family
- Land Size: Less Than 1/4 Acre
- Building Information
- Year Built: 1,988
- Construction: CBS
- Roof: Shingle Roof
- Subdivision/Neighborhood
- Subdivision: Key Colony Beach (53.5)
Financial
- Tax Information
- Taxes: $3,552
- Tax Year: 2,004
- Tax Exemptions: None
- Financial Information
- Terms: Buyer Obtain Finance
Utilities
- Utility Information
- Utilities: Municipal Sewer
Location
- Homeowners Association Information
- Fee Includes: None
- Location Information
- Side: Ocean
- Mile Marker: 54.00
- Directions: Sadowski Causeway, left to 3rd St.
Public facts
- Beds: —
- Baths: —
- Sq. Ft.: —
- Stories: —
- Lot Size: —
- Style: Single Family Residential
- Year Built: —
- Year Renovated: —
- County: Monroe County
- APN: 00072600-000000
Around this home
Schools
- K - 12
- Preschool & daycare
Public PreK-5 • Assigned • 5.1mi
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.
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New listings for sale in 33051

Home values near 280&29 3rd St
| Address | Redfin Estimate |
|---|---|
3 Beds | 2 Baths | 1300 Sq. Ft. | $825,747 |
2 Beds | 2 Baths | 1031 Sq. Ft. | $670,926 |
3 Beds | 1 Baths | 1179 Sq. Ft. | $669,540 |
2 Beds | 2 Baths | 1031 Sq. Ft. | $575,288 |
4 Beds | 4 Baths | 1536 Sq. Ft. | $998,162 |
2 Beds | 1 Baths | 750 Sq. Ft. | $578,868 |
3 Beds | 2 Baths | 1022 Sq. Ft. | $685,279 |
| Address | Redfin Estimate |
|---|---|
2 Beds | 2 Baths | 1031 Sq. Ft. | $591,906 |
2 Beds | 1 Baths | 882 Sq. Ft. | $620,254 |
2 Beds | 2 Baths | 1573 Sq. Ft. | $974,566 |
3 Beds | 2 Baths | 1300 Sq. Ft. | $828,665 |
2 Beds | 2 Baths | 1573 Sq. Ft. | $866,179 |
2 Beds | 1 Baths | 750 Sq. Ft. | $515,891 |
2 Beds | 2 Baths | 1514 Sq. Ft. | $1,021,266 |
| Address | Redfin Estimate |
|---|---|
2 Beds | 2 Baths | 1206 Sq. Ft. | $1,140,245 |
4 Beds | 4 Baths | 1536 Sq. Ft. | — |
2 Beds | 1 Baths | 1280 Sq. Ft. | $576,136 |
2 Beds | 2 Baths | 1031 Sq. Ft. | $649,964 |
4 Beds | 4 Baths | 1536 Sq. Ft. | $1,391,998 |
2 Beds | 2 Baths | 1152 Sq. Ft. | $815,520 |
3 Beds | 2 Baths | 1086 Sq. Ft. | $634,689 |
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