540 12th St is a 1,636 square foot house on a 8,250 square foot lot with 2 bedrooms and 2 bathrooms. - it last sold on January 11, 2024 for $1,325,000. Based on Redfin's Key Colony Beach data, we estimate the home's value is $1,726,277.
Single-familyProperty Type
1971Year Built
8,250 sq ftLot Size
$1,055Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,726,277
$401K since sold in January 2024$28K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 14.4% higher than the average sale price ($1.51M) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Apr 20, 2027 • Final
Building
Grading
Oct 21, 2026 • Final
Building
Pool and hot tub
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Bathroom Information
# of Full Baths: 2
Heating & Cooling
Heating Type: Forced Air
Exterior
Exterior Information
Physical Condition: Average
Floor Construction Type: Concrete
Foundation Type: Concrete
Exterior Wall: Concrete Block
Roof Shape Type: Gable/Hip
Building Type: Residential
Property Information
Subdivision Name: KEY COLONY BEACH SECOND ADD
Living Sq. Ft: 1,636
Gross Sq. Ft: 2,347
Ground Floor Sq. Ft: 1,636
Building Sq. Ft: 1,636
# of Units: 1
# of Stories: 1
Legal Description: N62.5 FT LOT 54 BLK 12 SLY 12.5 FT LOT 53 KEY COLONY BEACH SECOND ADDN SHELTER KEY PB4-94 OR186-480 OR458-190 OR659-346 OR831-2000 OR919-614 OR919-616 OR1015-987 OR1247-787 OR1247-788 OR1248-2194 OR1280-978 OR1866-2240
Parking & Garage Information
Parking Type: Finished Block Garage
Garage/Parking Sq. Ft: 252
Garage / Carport Type: Finished Block
Lot Information
# of Buildings: 1
Land Sq. Ft: 8,250
Legal Lot Number: 54
Legal Block Number: 12
Municipality Type: KCB
Municipality Name: CITY OF KEY COLONY BEACH
Acres: 0.1894
Zoning Code: INC
County Use Description: SINGLE FAMILY RES
State Use Description: SINGLE FAMILY
Location Information
Parcel Location Influence: Canal
Financial
Assessor Information
Assessment Year: 2025
Tax District County: CITY OF KEY COLONY BEACH
Tax Area: CITY OF KEY COLONY BEACH
Public facts
Beds: 2
Baths: 2.0
Sq. Ft.: 1,636
Stories: 1.0
Lot Size: 8,250 square feet
Style: Single Family Residential
Year Built: 1971
Year Renovated: 2005
County: Monroe County
APN: 0566 33 00077490000000
Home facts updated by county records on Apr 21, 2026
Around this home
Schools
K - 12
Preschool & daycare
Stanley Switlik Elementary School
Public PreK-5 • Assigned • 4.4mi
4/10
Marathon School
Public 6-12 • Assigned • 3.5mi
4/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
Heat Factor
We're working on getting current and accurate heat risk information for this home.
10/10 Wind Factor
99% chance of strong winds in next 30 years
1/10 Air Factor
0 unhealthy days expected this year, 0 days in 30 years
Provided by First Street
Historical weather
Key Colony Beach, FL • 33051
Average low and high temperatures (°F)
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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.
10 hrs
7.3 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.64M – $1.99M
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