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Duplex (2 Units, Any Combination)Residential

421 VALLEJO ST

CROCKETT, CA 94525
3
Beds
1.5
Baths
1,391 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,917 (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.$338,583 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$240,947
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$97,636
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$331,945

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.33
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
75
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
35
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
42
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.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountyCONTRA COSTA
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.1930
Lot (acres)The size of the land the home sits on, from county records.0.12
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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.

H
John Swett High SchoolB-
High · Grades 9–12 · 0.6 mi
M
Carquinez Middle SchoolC
Middle · Grades 6–8 · 0.6 mi
E
Rodeo Hills ElementaryC+
Elementary · Grades KG–5 · 3.5 mi

District: John Swett Unified School District

Neighborhood · ZIP 94525These 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.147
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 100.365

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.21%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.2,618
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.500 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$93,802
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$110,842
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.22 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

421 Vallejo 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 71% of homes in Crockett 94525
  • Has a smaller lot than 73% of homes in Crockett 94525
  • Among the oldest homes in Contra Costa County

How it measures up in Crockett 94525

The dot is this home. The mark in the middle is the typical home in Crockett 94525.

Living area1,391 ft²
SmallerTypical 1,640 ft²Bigger

Bigger than 29% of homes nearby

Lot size0.11 ac
SmallerTypical 0.12 acBigger

Bigger than 27% of homes nearby

Year built1900
OlderTypical 1934Newer

Newer than 13% of homes nearby

How 421 Vallejo St ranks against every home in each area.
MeasureThis homeCrockett 94525Contra Costa County
Living areabigger than1,391 ft²29% of homes30% of homes
Lot sizebigger than0.11 ac27% of homes28% of homes
Year builtnewer than190013% of homesalmost no homes

About 421 Vallejo St

When did 421 Vallejo St, Crockett, CA last sell?

421 Vallejo St, Crockett, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 421 Vallejo St, Crockett, CA?

421 Vallejo St, Crockett, CA has 3 bedrooms, 1.5 bathrooms, 1,391 square feet of living space and a 0.12-acre lot.

When was 421 Vallejo St, Crockett, CA built?

421 Vallejo St, Crockett, CA was built in 1900, making it 126 years old. It is a duplex single home. The building has 2 stories.

What schools serve 421 Vallejo St, Crockett, CA?

421 Vallejo St, Crockett, CA is assigned to John Swett High School (high), rated B-; Carquinez Middle School (middle), rated C; Rodeo Hills Elementary (elementary), rated C+. All sit in John Swett Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 Vallejo St, Crockett, CA compare to other homes in Crockett 94525?

Among the 1,142 homes in Crockett 94525, it is bigger than 29% of them (1,391 ft² against a typical 1,640 ft²), its lot is bigger than 27% of them (0.11 ac against a typical 0.12 ac) and it is newer than 13% of them (1900 against a typical 1934). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 421 Vallejo St, Crockett, CA?

The 2025 property tax bill for 421 Vallejo St, Crockett, CA was $5,917. The county assessed it at $338,583.

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