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Single Family ResidenceResidential
$660,058$485 / 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 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

3143 SW 21ST ST

MIAMI, FL 33145
2
Beds
1
Baths
1,362 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
1938
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$660K
$625K low$695K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,109 (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.$128,086 (2024)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$114,743
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$531,521

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.31 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.97%
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.minimal

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
CountyMiami-Dade
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.2019
Lot (acres)The size of the land the home sits on, from county records.0.14
ConstructionThe main material the home's frame and walls are built from.Concrete
HeatingThe type of heating system in the home.None
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 130 ft²Porch · 91 ft²

Transaction History(2)

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

Foreclosure Filings(3)

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

E
Silver Bluff Elementary SchoolB-
Elementary · Grades PK–5 · 0.8 mi
H
Coral Gables Senior High SchoolC+
High · Grades 9–12 · 1.7 mi
M
Ponce De Leon Middle SchoolB
Middle · Grades 6–8 · 3.0 mi

District: Dade County School District

Neighborhood · ZIP 33145These 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.98
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.16

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.29,869
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.11,837 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$67,806
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$106,351
Average tempThe average temperature here across a full year.76°F
Annual precipHow much rain and melted snow falls here in a typical year.59 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.70%

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

3143 Sw 21st 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 69% of homes in Miami-Dade County
  • Costs more per square foot than 76% of homes in Miami-Dade County
  • Has a smaller lot than 71% of homes in Coral Gate
  • Older than 97% of homes in Miami-Dade County

What homes are worth in Miami 33145

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

This home
$250K$1.5M

This home is worth more than 41% of homes in Miami 33145.

How it measures up in Miami 33145

The dot is this home. The mark in the middle is the typical home in Miami 33145.

Estimated value$660,058
CheaperTypical $719,131Pricier

Pricier than 41% of homes nearby

Price per ft²$485
CheaperTypical $463Pricier

Pricier than 58% of homes nearby

Living area1,362 ft²
SmallerTypical 1,540 ft²Bigger

Bigger than 39% of homes nearby

Lot size0.14 ac
SmallerTypical 0.15 acBigger

Bigger than 37% of homes nearby

Year built1938
OlderTypical 1950Newer

Newer than 17% of homes nearby

How 3143 Sw 21st St ranks against every home in each area.
MeasureThis homeCoral GateMiami 33145Miami-Dade County
Estimated valuepricier than$660,05854% of homes41% of homes69% of homes
Price per ft²pricier than$48566% of homes58% of homes76% of homes
Living areabigger than1,362 ft²48% of homes39% of homes46% of homes
Lot sizebigger than0.14 ac29% of homes37% of homes37% of homes
Year builtnewer than19388% of homes17% of homes3% of homes

About 3143 Sw 21st St

How much is 3143 Sw 21st St, Miami, FL worth?

The TopHap Estimate for 3143 Sw 21st St, Miami, FL is $660,058 as of Sep 24, 2026. The likely range is $624,657 to $695,459. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3143 Sw 21st St, Miami, FL last sell?

3143 Sw 21st St, Miami, FL last sold on Feb 10, 2010, according to the county's recorded deed.

How big is 3143 Sw 21st St, Miami, FL?

3143 Sw 21st St, Miami, FL has 2 bedrooms, 1 bathrooms, 1,362 square feet of living space and a 0.14-acre lot.

When was 3143 Sw 21st St, Miami, FL built?

3143 Sw 21st St, Miami, FL was built in 1938, making it 88 years old. The building has 1 story.

What schools serve 3143 Sw 21st St, Miami, FL?

3143 Sw 21st St, Miami, FL is assigned to Silver Bluff Elementary School (elementary), rated B-; Coral Gables Senior High School (high), rated C+; Ponce De Leon Middle School (middle), rated B. All sit in Dade County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3143 Sw 21st St, Miami, FL compare to other homes in Miami 33145?

Among the 8,408 homes in Miami 33145, it is worth more than 41% of them ($660,058 against a typical $719,131), its price per square foot is higher than 58% of them ($485 against a typical $463), it is bigger than 39% of them (1,362 ft² against a typical 1,540 ft²), its lot is bigger than 37% of them (0.14 ac against a typical 0.15 ac) and it is newer than 17% of them (1938 against a typical 1950). Measured against all of Miami-Dade County, it is worth more than 69% 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 3143 Sw 21st St, Miami, FL?

The 2024 property tax bill for 3143 Sw 21st St, Miami, FL was $2,109. The county assessed it at $128,086.

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