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Single Family ResidenceResidential
$5,830,047$1,218 / 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
Last sold for $4,500,000 on Dec 18, 2020

21401 PROSPECT RD

SARATOGA, CA 95070
4
Beds
3.5
Baths
4,788 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.
3.02 ac
Lot SizeThe size of the land the home sits on, from county records.
1954
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$5.8M
$5.5M low$6.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$4,500,000 · Dec 18, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$40,351 (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.$3,433,794 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,264,919
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,168,875
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$3,366,465

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.45
35
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
72
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
26
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
48
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
47
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.18 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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
CountySANTA CLARA
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.2000
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

Transaction History(6)

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
Blue Hills Elementary SchoolA+
Elementary · Grades KG–5 · 1.2 mi
M
Kennedy Middle SchoolA+
Middle · Grades 6–8 · 1.4 mi
H
Monta Vista High SchoolA+
High · Grades 9–12 · 1.7 mi

District: Cupertino Union Elementary School District

Neighborhood · ZIP 95070These 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.42
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.547

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.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.5%
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.31,244
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,201 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$217,903
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$296,125
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.32 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.73%

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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

21401 Prospect Rd 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 98% of homes in Santa Clara County
  • Costs less per square foot than 80% of homes in Saratoga 95070
  • Bigger than 98% of homes in Santa Clara County
  • Has a bigger lot than 98% of homes in Saratoga 95070
  • Older than 94% of homes in Parker Ranch

What homes are worth in Saratoga 95070

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

This home
$1M$7.8M

This home is worth more than 92% of homes in Saratoga 95070.

How it measures up in Saratoga 95070

The dot is this home. The mark in the middle is the typical home in Saratoga 95070.

Estimated value$5,830,047
CheaperTypical $3,770,021Pricier

Pricier than 92% of homes nearby

Price per ft²$1218
CheaperTypical $1422Pricier

Pricier than 20% of homes nearby

Living area4,788 ft²
SmallerTypical 2,586 ft²Bigger

Bigger than 93% of homes nearby

Lot size3.02 ac
SmallerTypical 0.29 acBigger

Bigger than 98% of homes nearby

Year built1954
OlderTypical 1967Newer

Newer than 15% of homes nearby

How 21401 Prospect Rd ranks against every home in each area.
MeasureThis homeParker RanchSaratoga 95070Santa Clara County
Estimated valuepricier than$5,830,04775% of homes92% of homes98% of homes
Price per ft²pricier than$121831% of homes20% of homes75% of homes
Living areabigger than4,788 ft²79% of homes93% of homes98% of homes
Lot sizebigger than3.02 ac95% of homes98% of homes98% of homes
Year builtnewer than19546% of homes15% of homes17% of homes

About 21401 Prospect Rd

How much is 21401 Prospect Rd, Saratoga, CA worth?

The TopHap Estimate for 21401 Prospect Rd, Saratoga, CA is $5,830,047 as of Sep 24, 2026. The likely range is $5,529,802 to $6,130,293. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21401 Prospect Rd, Saratoga, CA last sell?

21401 Prospect Rd, Saratoga, CA last sold on Dec 18, 2020 for $4,500,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21401 Prospect Rd, Saratoga, CA?

21401 Prospect Rd, Saratoga, CA has 4 bedrooms, 3.5 bathrooms and 4,788 square feet of living space.

When was 21401 Prospect Rd, Saratoga, CA built?

21401 Prospect Rd, Saratoga, CA was built in 1954, making it 72 years old. The building has 1 story.

What schools serve 21401 Prospect Rd, Saratoga, CA?

21401 Prospect Rd, Saratoga, CA is assigned to Blue Hills Elementary School (elementary), rated A+; Kennedy Middle School (middle), rated A+; Monta Vista High School (high), rated A+. All sit in Cupertino Union Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21401 Prospect Rd, Saratoga, CA compare to other homes in Saratoga 95070?

Among the 11,073 homes in Saratoga 95070, it is worth more than 92% of them ($5,830,047 against a typical $3,770,021), its price per square foot is higher than 20% of them ($1218 against a typical $1422), it is bigger than 93% of them (4,788 ft² against a typical 2,586 ft²), its lot is bigger than 98% of them (3.02 ac against a typical 0.29 ac) and it is newer than 15% of them (1954 against a typical 1967). Measured against all of Santa Clara County, it is worth more than 98% 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 21401 Prospect Rd, Saratoga, CA?

The 2025 property tax bill for 21401 Prospect Rd, Saratoga, CA was $40,351. The county assessed it at $3,433,794.

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