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CondominiumResidential
$671,369$669 / 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 98How 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 $570,000 on Nov 25, 2014

255 S RENGSTORFF AVE

MOUNTAIN VIEW, CA 94040
Building report
2
Beds
2
Baths
1,003 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.
1,395 ft²
Lot SizeThe size of the land the home sits on, from county records.
1965
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.

Valuation

$671K
$660K low$682K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$570,000 · Nov 25, 2014

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,185 (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.$698,744 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$349,372
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$349,372
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$685,044

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.42
50
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
39
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
23
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
40
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
60
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.14 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.Condominium
CountySANTA CLARA
Lot (acres)The size of the land the home sits on, from county records.0.03
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.Roll Tar & Gravel
HeatingThe type of heating system in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
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

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
Mariano Castro Elementary SchoolD-
Elementary · Grades KG–5 · 0.5 mi
H
Los Altos High SchoolA+
High · Grades 9–12 · 1.1 mi
M
Isaac Newton Graham Middle SchoolA-
Middle · Grades 6–8 · 1.5 mi

District: Mountain View Whisman Elementary School District

Neighborhood · ZIP 94040These 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.115
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.461

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.36,386
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.9,993 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$165,080
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$236,160
Average tempThe average temperature here across a full year.59°F
Annual precipHow much rain and melted snow falls here in a typical year.18 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

255 S Rengstorff Ave 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 93% of homes in Mountain View 94040
  • Costs less per square foot than 95% of homes in Mountain View 94040
  • Smaller than 92% of homes in Santa Clara County
  • Has a smaller lot than 88% of homes in Santa Clara County

What homes are worth in Mountain View 94040

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

This home
$514K$5.1M

This home is worth more than 7% of homes in Mountain View 94040.

How it measures up in Mountain View 94040

The dot is this home. The mark in the middle is the typical home in Mountain View 94040.

Estimated value$671,369
CheaperTypical $2,878,849Pricier

Pricier than 7% of homes nearby

Price per ft²$669
CheaperTypical $1587Pricier

Pricier than 5% of homes nearby

Living area1,003 ft²
SmallerTypical 1,724 ft²Bigger

Bigger than 11% of homes nearby

Lot size1,395 ft²
SmallerTypical 0.14 acBigger

Bigger than 19% of homes nearby

Year built1965
OlderTypical 1965Newer

Newer than 53% of homes nearby

How 255 S Rengstorff Ave ranks against every home in each area.
MeasureThis homeMountain View 94040Santa Clara County
Estimated valuepricier than$671,3697% of homes7% of homes
Price per ft²pricier than$6695% of homes21% of homes
Living areabigger than1,003 ft²11% of homes8% of homes
Lot sizebigger than1,395 ft²19% of homes12% of homes
Year builtnewer than196553% of homes40% of homes

About 255 S Rengstorff Ave

How much is 255 S Rengstorff Ave, Mountain View, CA worth?

The TopHap Estimate for 255 S Rengstorff Ave, Mountain View, CA is $671,369 as of Sep 24, 2026. The likely range is $660,333 to $682,405. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 255 S Rengstorff Ave, Mountain View, CA last sell?

255 S Rengstorff Ave, Mountain View, CA last sold on Nov 25, 2014 for $570,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 255 S Rengstorff Ave, Mountain View, CA?

255 S Rengstorff Ave, Mountain View, CA has 2 bedrooms, 2 bathrooms, 1,003 square feet of living space and a 0.03-acre lot.

When was 255 S Rengstorff Ave, Mountain View, CA built?

255 S Rengstorff Ave, Mountain View, CA was built in 1965, making it 61 years old. The building has 1 story.

What schools serve 255 S Rengstorff Ave, Mountain View, CA?

255 S Rengstorff Ave, Mountain View, CA is assigned to Mariano Castro Elementary School (elementary), rated D-; Los Altos High School (high), rated A+; Isaac Newton Graham Middle School (middle), rated A-. All sit in Mountain View Whisman Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 255 S Rengstorff Ave, Mountain View, CA compare to other homes in Mountain View 94040?

Among the 7,530 homes in Mountain View 94040, it is worth more than 7% of them ($671,369 against a typical $2,878,849), its price per square foot is higher than 5% of them ($669 against a typical $1587), it is bigger than 11% of them (1,003 ft² against a typical 1,724 ft²), its lot is bigger than 19% of them (1,395 ft² against a typical 0.14 ac) and it is newer than 53% of them (1965 against a typical 1965). Measured against all of Santa Clara County, it is worth more than 7% 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 255 S Rengstorff Ave, Mountain View, CA?

The 2025 property tax bill for 255 S Rengstorff Ave, Mountain View, CA was $8,185. The county assessed it at $698,744.

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