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Single Family ResidenceResidential
$3,366,449$1,295 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $3,250,000 on Apr 8, 2026

781 9TH ST

KEY COLONY BEACH, FL 33051
3
Beds
3
Baths
2,600 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.36 ac
Lot SizeThe size of the land the home sits on, from county records.
1977
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$3.4M
$3.2M low$3.6M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$3,250,000 · Apr 8, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$24,225 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$2,543,723 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,438,266
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,105,457
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$2,488,669
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$2,543,723

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.45 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.100%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.1 percent flood zone

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMONROE
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2010
Lot (acres)The size of the land the home sits on, from county records.0.36
ConstructionThe main material the home's frame and walls are built from.Concrete Blocks
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.Yes
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 1,382 ft²Patio · 3,642 ft²Porch · 2,630 ft²Boat accessWater feature

Transaction History(5)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

M
Marathon Middle High SchoolC
Middle · Grades 6–12 · 3.7 mi
E
Stanley Switlik Elementary SchoolC+
Elementary · Grades PK–5 · 4.5 mi

District: Monroe County School District

Neighborhood · ZIP 33051These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.136
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.77
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.8

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.51%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.3%
PopulationHow many people live in this area.2
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.138 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$87,823
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$102,815
Average tempThe average temperature here across a full year.77°F
Annual precipHow much rain and melted snow falls here in a typical year.46 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.76%

Owner Tools

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

781 9th St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth more than 96% of homes in Key Colony Beach 33051
  • Costs more per square foot than 97% of homes in Key Colony Beach 33051
  • Bigger than 89% of homes in Key Colony Beach 33051
  • Has a bigger lot than 76% of homes in Monroe County

What homes are worth in Key Colony Beach 33051

Each bar is how many homes fall in that price range. The marker is this home.

This home
$324K$4.3M

This home is worth more than 96% of homes in Key Colony Beach 33051.

How it measures up in Key Colony Beach 33051

The dot is this home. The mark in the middle is the typical home in Key Colony Beach 33051.

Estimated value$3,366,449
CheaperTypical $897,933Pricier

Pricier than 96% of homes nearby

Price per ft²$1295
CheaperTypical $732Pricier

Pricier than 97% of homes nearby

Living area2,600 ft²
SmallerTypical 1,333 ft²Bigger

Bigger than 89% of homes nearby

Lot size0.36 ac
SmallerTypical 0.19 acBigger

Bigger than 65% of homes nearby

Year built1977
OlderTypical 1976Newer

Newer than 51% of homes nearby

How 781 9th St ranks against every home in each area.
MeasureThis homeKey Colony Beach 33051Monroe County
Estimated valuepricier than$3,366,44996% of homes92% of homes
Price per ft²pricier than$129597% of homes87% of homes
Living areabigger than2,600 ft²89% of homes89% of homes
Lot sizebigger than0.36 ac65% of homes76% of homes
Year builtnewer than197751% of homes39% of homes

About 781 9th St

How much is 781 9th St, Key Colony Beach, FL worth?

The TopHap Estimate for 781 9th St, Key Colony Beach, FL is $3,366,449 as of Aug 30, 2026. The likely range is $3,166,024 to $3,566,874. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 781 9th St, Key Colony Beach, FL last sell?

781 9th St, Key Colony Beach, FL last sold on Apr 8, 2026 for $3,250,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 781 9th St, Key Colony Beach, FL?

781 9th St, Key Colony Beach, FL has 3 bedrooms, 3 bathrooms, 2,600 square feet of living space and a 0.36-acre lot.

When was 781 9th St, Key Colony Beach, FL built?

781 9th St, Key Colony Beach, FL was built in 1977, making it 49 years old. The building has 2 stories.

What schools serve 781 9th St, Key Colony Beach, FL?

781 9th St, Key Colony Beach, FL is assigned to Marathon Middle High School (middle), rated C; Stanley Switlik Elementary School (elementary), rated C+. All sit in Monroe County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 781 9th St, Key Colony Beach, FL compare to other homes in Key Colony Beach 33051?

Among the 1,442 homes in Key Colony Beach 33051, it is worth more than 96% of them ($3,366,449 against a typical $897,933), its price per square foot is higher than 97% of them ($1295 against a typical $732), it is bigger than 89% of them (2,600 ft² against a typical 1,333 ft²), its lot is bigger than 65% of them (0.36 ac against a typical 0.19 ac) and it is newer than 51% of them (1977 against a typical 1976). Measured against all of Monroe County, it is worth more than 92% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 781 9th St, Key Colony Beach, FL?

The 2024 property tax bill for 781 9th St, Key Colony Beach, FL was $24,225. The county assessed it at $2,543,723.

More homes on 9th St

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Assigned schools

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