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Single Family ResidenceResidential
$642,445$196 / 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 $196,000 on Dec 8, 1997

3910 CASTLE KEY LN

VALRICO, FL 33594
5
Beds
4
Baths
3,275 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.
0.35 ac
Lot SizeThe size of the land the home sits on, from county records.
1994
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$642K
$606K low$679K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$196,000 · Dec 8, 1997

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,435 (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.$252,408 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$245,294
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$552,101

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.44
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
15
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
98
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
75
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
31
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
StyleThe architectural style of the home, such as ranch or colonial.Contemporary
CountyHillsborough
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.2009
Lot (acres)The size of the land the home sits on, from county records.0.35
ConstructionThe main material the home's frame and walls are built from.Masonry/Concrete Masonry Units (Cmus)
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
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.Porch · 391 ft²

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
Buckhorn Elementary SchoolA
Elementary · Grades PK–5 · 0.9 mi
M
Mulrennan Middle SchoolB
Middle · Grades 6–8 · 1.2 mi
H
Durant High SchoolC
High · Grades 9–12 · 4.5 mi

District: Hillsborough County School District

Neighborhood · ZIP 33594These 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.54
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.237
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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.38,493
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,545 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$85,513
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$106,029
Average tempThe average temperature here across a full year.72°F
Annual precipHow much rain and melted snow falls here in a typical year.52 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.66%

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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

3910 Castle Key Ln 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 97% of homes in Valrico 33594
  • Costs less per square foot than 65% of homes in Valrico 33594
  • Bigger than 95% of homes in Valrico 33594
  • Has a bigger lot than 84% of homes in Valrico 33594

What homes are worth in Valrico 33594

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

This home
$202K$669K

This home is worth more than 97% of homes in Valrico 33594.

How it measures up in Valrico 33594

The dot is this home. The mark in the middle is the typical home in Valrico 33594.

Estimated value$642,445
CheaperTypical $367,319Pricier

Pricier than 97% of homes nearby

Price per ft²$196
CheaperTypical $206Pricier

Pricier than 35% of homes nearby

Living area3,275 ft²
SmallerTypical 1,808 ft²Bigger

Bigger than 95% of homes nearby

Lot size0.35 ac
SmallerTypical 0.2 acBigger

Bigger than 84% of homes nearby

Year built1994
OlderTypical 1998Newer

Newer than 42% of homes nearby

How 3910 Castle Key Ln ranks against every home in each area.
MeasureThis homeValrico 33594Hillsborough County
Estimated valuepricier than$642,44597% of homes86% of homes
Price per ft²pricier than$19635% of homes36% of homes
Living areabigger than3,275 ft²95% of homes93% of homes
Lot sizebigger than0.35 ac84% of homes82% of homes
Year builtnewer than199442% of homes53% of homes

About 3910 Castle Key Ln

How much is 3910 Castle Key Ln, Valrico, FL worth?

The TopHap Estimate for 3910 Castle Key Ln, Valrico, FL is $642,445 as of Aug 30, 2026. The likely range is $606,112 to $678,778. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3910 Castle Key Ln, Valrico, FL last sell?

3910 Castle Key Ln, Valrico, FL last sold on Dec 8, 1997 for $196,000, according to the county's recorded deed.

How big is 3910 Castle Key Ln, Valrico, FL?

3910 Castle Key Ln, Valrico, FL has 5 bedrooms, 4 bathrooms, 3,275 square feet of living space and a 0.35-acre lot.

When was 3910 Castle Key Ln, Valrico, FL built?

3910 Castle Key Ln, Valrico, FL was built in 1994, making it 32 years old. It is a contemporary home. The building has 1 story.

What schools serve 3910 Castle Key Ln, Valrico, FL?

3910 Castle Key Ln, Valrico, FL is assigned to Buckhorn Elementary School (elementary), rated A; Mulrennan Middle School (middle), rated B; Durant High School (high), rated C. All sit in Hillsborough County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3910 Castle Key Ln, Valrico, FL compare to other homes in Valrico 33594?

Among the 11,184 homes in Valrico 33594, it is worth more than 97% of them ($642,445 against a typical $367,319), its price per square foot is higher than 35% of them ($196 against a typical $206), it is bigger than 95% of them (3,275 ft² against a typical 1,808 ft²), its lot is bigger than 84% of them (0.35 ac against a typical 0.2 ac) and it is newer than 42% of them (1994 against a typical 1998). Measured against all of Hillsborough County, it is worth more than 86% 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 3910 Castle Key Ln, Valrico, FL?

The 2025 property tax bill for 3910 Castle Key Ln, Valrico, FL was $4,435. The county assessed it at $252,408.

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