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Commercial Office (General)Commercial
Last sold for $2,037,000 on Sep 5, 2003

30 W MASHTA DR

KEY BISCAYNE, FL 33149
0
Baths
14,174 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.
0.29 ac
Lot SizeThe size of the land the home sits on, from county records.
1988
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$2,037,000 · Sep 5, 2003

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$40,743 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$2,395,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,000,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$395,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$2,430,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$2,395,000

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.43 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.Commercial Office (General)
CountyMIAMI-DADE
Lot (acres)The size of the land the home sits on, from county records.0.29
ConstructionThe main material the home's frame and walls are built from.Concrete Blocks
CoolingThe type of cooling or air conditioning in the home.Yes
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.Elevator

Transaction History(1)

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.

E
Key Biscayne K-8 CenterA-
Elementary · Grades PK–5 · 0.4 mi
H
Coral Gables Senior High SchoolC+
High · Grades 9–12 · 7.0 mi
M
Ponce De Leon Middle SchoolB
Middle · Grades 6–8 · 7.0 mi

District: Dade County School District

Neighborhood · ZIP 33149These 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.72
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 100.9

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.76%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.36%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.7%
PopulationHow many people live in this area.16,714
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,068 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$155,699
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$201,344
Average tempThe average temperature here across a full year.76°F
Annual precipHow much rain and melted snow falls here in a typical year.54 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.70%

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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

30 W Mashta Dr 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.

  • Among the largest homes in Key Biscayne 33149
  • Has a bigger lot than 88% of homes in Miami-Dade County
  • Newer than 71% of homes in Key Biscayne 33149

How it measures up in Key Biscayne 33149

The dot is this home. The mark in the middle is the typical home in Key Biscayne 33149.

Living area14,174 ft²
SmallerTypical 1,720 ft²Bigger

Bigger than almost all homes nearby

Lot size0.29 ac
SmallerTypical 0.19 acBigger

Bigger than 74% of homes nearby

Year built1988
OlderTypical 1978Newer

Newer than 71% of homes nearby

How 30 W Mashta Dr ranks against every home in each area.
MeasureThis homeKey Biscayne 33149Miami-Dade County
Living areabigger than14,174 ft²almost all homesalmost all homes
Lot sizebigger than0.29 ac74% of homes88% of homes
Year builtnewer than198871% of homes63% of homes

About 30 W Mashta Dr

When did 30 W Mashta Dr, Key Biscayne, FL last sell?

30 W Mashta Dr, Key Biscayne, FL last sold on Sep 5, 2003 for $2,037,000, according to the county's recorded deed.

How big is 30 W Mashta Dr, Key Biscayne, FL?

30 W Mashta Dr, Key Biscayne, FL has 14,174 square feet of living space and a 0.29-acre lot.

When was 30 W Mashta Dr, Key Biscayne, FL built?

30 W Mashta Dr, Key Biscayne, FL was built in 1988, making it 38 years old. The building has 2 stories.

What schools serve 30 W Mashta Dr, Key Biscayne, FL?

30 W Mashta Dr, Key Biscayne, FL is assigned to Key Biscayne K-8 Center (elementary), rated A-; 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 30 W Mashta Dr, Key Biscayne, FL compare to other homes in Key Biscayne 33149?

Among the 7,045 homes in Key Biscayne 33149, it is bigger than almost all of them (14,174 ft² against a typical 1,720 ft²), its lot is bigger than 74% of them (0.29 ac against a typical 0.19 ac) and it is newer than 71% of them (1988 against a typical 1978). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 30 W Mashta Dr, Key Biscayne, FL?

The 2025 property tax bill for 30 W Mashta Dr, Key Biscayne, FL was $40,743. The county assessed it at $2,395,000.

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