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Single Family ResidenceResidential
$1,243,847$890 / 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 92How 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

25 ALTON ST

MILPITAS, CA 95035
3
Beds
2
Baths
1,398 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1957
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.2M
$1.1M low$1.3M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,509 (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.$368,627 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$156,363
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$212,264
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$361,400

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.36
35
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
30
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
27
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
27
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
62
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.20 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
StyleThe architectural style of the home, such as ranch or colonial.Custom Design
CountySANTA CLARA
Lot (acres)The size of the land the home sits on, from county records.0.15
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Wood Shingle
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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
Anthony Spangler Elementary SchoolA+
Elementary · Grades KG–6 · 0.2 mi
H
Milpitas High SchoolA
High · Grades 9–12 · 1.5 mi
M
Thomas Russell Middle SchoolA
Middle · Grades 7–8 · 1.7 mi

District: Milpitas Unified School District

Neighborhood · ZIP 95035These 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.70
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 100.621

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.97%
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.6.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.79,997
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,313 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$152,704
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$176,299
Average tempThe average temperature here across a full year.59°F
Annual precipHow much rain and melted snow falls here in a typical year.19 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

25 Alton 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 less than 65% of homes in Santa Clara County
  • Smaller than 68% of homes in Santa Clara County
  • Has a bigger lot than 86% of homes in Milpitas 95035
  • Older than 96% of homes in Milpitas 95035

What homes are worth in Milpitas 95035

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

This home
$545K$2.8M

This home is worth more than 44% of homes in Milpitas 95035.

How it measures up in Milpitas 95035

The dot is this home. The mark in the middle is the typical home in Milpitas 95035.

Estimated value$1,243,847
CheaperTypical $1,317,559Pricier

Pricier than 44% of homes nearby

Price per ft²$890
CheaperTypical $842Pricier

Pricier than 61% of homes nearby

Living area1,398 ft²
SmallerTypical 1,547 ft²Bigger

Bigger than 35% of homes nearby

Lot size0.15 ac
SmallerTypical 0.11 acBigger

Bigger than 86% of homes nearby

Year built1957
OlderTypical 1979Newer

Newer than 4% of homes nearby

How 25 Alton St ranks against every home in each area.
MeasureThis homeMilpitas 95035Santa Clara County
Estimated valuepricier than$1,243,84744% of homes35% of homes
Price per ft²pricier than$89061% of homes48% of homes
Living areabigger than1,398 ft²35% of homes32% of homes
Lot sizebigger than0.15 ac86% of homes61% of homes
Year builtnewer than19574% of homes23% of homes

About 25 Alton St

How much is 25 Alton St, Milpitas, CA worth?

The TopHap Estimate for 25 Alton St, Milpitas, CA is $1,243,847 as of Aug 30, 2026. The likely range is $1,146,107 to $1,341,587. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 25 Alton St, Milpitas, CA last sell?

25 Alton St, Milpitas, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 25 Alton St, Milpitas, CA?

25 Alton St, Milpitas, CA has 3 bedrooms, 2 bathrooms, 1,398 square feet of living space and a 0.15-acre lot.

When was 25 Alton St, Milpitas, CA built?

25 Alton St, Milpitas, CA was built in 1957, making it 69 years old. It is a custom design home. The building has 1 story.

What schools serve 25 Alton St, Milpitas, CA?

25 Alton St, Milpitas, CA is assigned to Anthony Spangler Elementary School (elementary), rated A+; Milpitas High School (high), rated A; Thomas Russell Middle School (middle), rated A. All sit in Milpitas Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 25 Alton St, Milpitas, CA compare to other homes in Milpitas 95035?

Among the 19,440 homes in Milpitas 95035, it is worth more than 44% of them ($1,243,847 against a typical $1,317,559), its price per square foot is higher than 61% of them ($890 against a typical $842), it is bigger than 35% of them (1,398 ft² against a typical 1,547 ft²), its lot is bigger than 86% of them (0.15 ac against a typical 0.11 ac) and it is newer than 4% of them (1957 against a typical 1979). Measured against all of Santa Clara County, it is worth more than 35% 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 25 Alton St, Milpitas, CA?

The 2025 property tax bill for 25 Alton St, Milpitas, CA was $4,509. The county assessed it at $368,627.

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