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Single Family ResidenceResidential

NO ADDRESS

DIABLO, CA 94528
0
Baths
698 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.
5 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,778 (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.$69,937 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$49,978
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$19,959
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$68,567

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
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
86
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
47
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
46
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
14
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
CountyCONTRA COSTA
PoolWhether the property has a pool, and what kind, such as in-ground.No

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
Green Valley Elementary SchoolA+
Elementary · Grades KG–5 · 1.6 mi
M
Los Cerros Middle SchoolA+
Middle · Grades 6–8 · 1.6 mi
H
Monte Vista High SchoolA+
High · Grades 9–12 · 1.6 mi

District: San Ramon Valley Unified School District

Neighborhood · ZIP 94528These 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.71
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 100.593

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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.0%
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.1,042
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,912 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$230,686
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$330,622
Average tempThe average temperature here across a full year.59°F
Annual precipHow much rain and melted snow falls here in a typical year.20 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%

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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

No Address 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.

  • Among the smallest homes in Diablo 94528
  • Among the largest lots in Contra Costa County
  • Older than 86% of homes in Contra Costa County

How it measures up in Diablo 94528

The dot is this home. The mark in the middle is the typical home in Diablo 94528.

Living area698 ft²
SmallerTypical 4,004 ft²Bigger

Smaller than almost all homes nearby

Lot size5 ac
SmallerTypical 0.74 acBigger

Bigger than 97% of homes nearby

Year built1950
OlderTypical 1975Newer

Newer than 17% of homes nearby

How No Address ranks against every home in each area.
MeasureThis homeDiablo 94528Contra Costa County
Living areabigger than698 ft²almost no homesalmost no homes
Lot sizebigger than5 ac97% of homesalmost all homes
Year builtnewer than195017% of homes14% of homes

About No Address

When did No Address, Diablo, CA last sell?

No Address, Diablo, CA last sold on Jan 1, 1900, according to the county's recorded deed.

When was No Address, Diablo, CA built?

No Address, Diablo, CA was built in 1950, making it 76 years old. The building has 1 story.

What schools serve No Address, Diablo, CA?

No Address, Diablo, CA is assigned to Green Valley Elementary School (elementary), rated A+; Los Cerros Middle School (middle), rated A+; Monte Vista High School (high), rated A+. All sit in San Ramon Valley Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does No Address, Diablo, CA compare to other homes in Diablo 94528?

Among the 393 homes in Diablo 94528, it is bigger than almost none of them (698 ft² against a typical 4,004 ft²), its lot is bigger than 97% of them (5 ac against a typical 0.74 ac) and it is newer than 17% of them (1950 against a typical 1975). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on No Address, Diablo, CA?

The 2025 property tax bill for No Address, Diablo, CA was $1,778. The county assessed it at $69,937.

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Assigned schools

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