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Multi-Family Dwellings (Generic, Any Combination)Residential
Last sold for $1,400,000 on May 29, 2013

311 COWPER ST

PALO ALTO, CA 94301
0
Baths
1,274 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.
3,300 ft²
Lot SizeThe size of the land the home sits on, from county records.
1905
Year BuiltThe year the home was originally built, according to county records.
1
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.$1,400,000 · May 29, 2013

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$21,753 (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.$1,758,465 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,570,064
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$188,401
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,723,986

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.38
44
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
20
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
28
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.10 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.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.Multi-Family Dwellings (Generic, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Custom Design
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.1920
Lot (acres)The size of the land the home sits on, from county records.0.08
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.None
CoolingThe type of cooling or air conditioning in the home.None
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.Elevator

Transaction History(7)

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
Addison Elementary SchoolA+
Elementary · Grades KG–5 · 0.6 mi
H
Palo Alto High SchoolA+
High · Grades 9–12 · 0.9 mi
M
Frank S. Greene Jr Middle SchoolA+
Middle · Grades 6–8 · 1.7 mi

District: Palo Alto Unified School District

Neighborhood · ZIP 94301These 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.124
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 100.450

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.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.18,260
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.7,497 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$189,809
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$274,470
Average tempThe average temperature here across a full year.59°F
Annual precipHow much rain and melted snow falls here in a typical year.16 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

311 Cowper 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.

  • Smaller than 85% of homes in Palo Alto 94301
  • Has a smaller lot than 82% of homes in Palo Alto 94301
  • Among the oldest homes in Santa Clara County

How it measures up in Palo Alto 94301

The dot is this home. The mark in the middle is the typical home in Palo Alto 94301.

Living area1,274 ft²
SmallerTypical 2,196 ft²Bigger

Bigger than 15% of homes nearby

Lot size3,300 ft²
SmallerTypical 0.15 acBigger

Bigger than 18% of homes nearby

Year built1905
OlderTypical 1947Newer

Newer than 6% of homes nearby

How 311 Cowper St ranks against every home in each area.
MeasureThis homeDowntown NorthPalo Alto 94301Santa Clara County
Living areabigger than1,274 ft²36% of homes15% of homes24% of homes
Lot sizebigger than3,300 ft²48% of homes18% of homes22% of homes
Year builtnewer than190510% of homes6% of homesalmost no homes

About 311 Cowper St

When did 311 Cowper St, Palo Alto, CA last sell?

311 Cowper St, Palo Alto, CA last sold on May 29, 2013 for $1,400,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 311 Cowper St, Palo Alto, CA?

311 Cowper St, Palo Alto, CA has 1,274 square feet of living space and a 0.08-acre lot.

When was 311 Cowper St, Palo Alto, CA built?

311 Cowper St, Palo Alto, CA was built in 1905, making it 121 years old. It is a custom design home. The building has 1 story.

What schools serve 311 Cowper St, Palo Alto, CA?

311 Cowper St, Palo Alto, CA is assigned to Addison Elementary School (elementary), rated A+; Palo Alto High School (high), rated A+; Frank S. Greene Jr Middle School (middle), rated A+. All sit in Palo Alto Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 311 Cowper St, Palo Alto, CA compare to other homes in Palo Alto 94301?

Among the 5,325 homes in Palo Alto 94301, it is bigger than 15% of them (1,274 ft² against a typical 2,196 ft²), its lot is bigger than 18% of them (3,300 ft² against a typical 0.15 ac) and it is newer than 6% of them (1905 against a typical 1947). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 311 Cowper St, Palo Alto, CA?

The 2025 property tax bill for 311 Cowper St, Palo Alto, CA was $21,753. The county assessed it at $1,758,465.

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