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Single Family ResidenceResidential
$514,794$606 / 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 90How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $575,000 on Mar 4, 2024

620 S 31ST ST

RICHMOND, CA 94804
0
Baths
849 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
1908
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
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

$515K
$462K low$567K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$575,000 · Mar 4, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,830 (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.$598,230 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$442,170
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$156,060
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$586,500

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.19
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
16
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
44
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
36
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
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.0.14
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(11)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(4)

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

H
Kennedy High SchoolD
High · Grades 9–12 · 0.6 mi
E
Coronado Elementary SchoolD+
Elementary · Grades KG–6 · 0.6 mi
M
DeJean Middle SchoolF
Middle · Grades 7–8 · 0.7 mi

District: West Contra Costa Unified School District

Neighborhood · ZIP 94804These 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.133
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 100.561

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.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.44,926
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,044 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$80,581
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$109,956
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%

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

620 S 31st 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 83% of homes in Contra Costa County
  • Among the highest price per square foot in Cortez / Stege
  • Smaller than 96% of homes in Contra Costa County
  • Has a bigger lot than 93% of homes in Richmond 94804
  • Among the oldest homes in Cortez / Stege

What homes are worth in Richmond 94804

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

This home
$338K$1.1M

This home is worth more than 41% of homes in Richmond 94804.

How it measures up in Richmond 94804

The dot is this home. The mark in the middle is the typical home in Richmond 94804.

Estimated value$514,794
CheaperTypical $542,042Pricier

Pricier than 41% of homes nearby

Price per ft²$606
CheaperTypical $480Pricier

Pricier than 86% of homes nearby

Living area849 ft²
SmallerTypical 1,193 ft²Bigger

Bigger than 15% of homes nearby

Lot size0.14 ac
SmallerTypical 0.1 acBigger

Bigger than 93% of homes nearby

Year built1908
OlderTypical 1952Newer

Older than almost all homes nearby

How 620 S 31st St ranks against every home in each area.
MeasureThis homeCortez / StegeRichmond 94804Contra Costa County
Estimated valuepricier than$514,79459% of homes41% of homes17% of homes
Price per ft²pricier than$606almost all homes86% of homes71% of homes
Living areabigger than849 ft²10% of homes15% of homes4% of homes
Lot sizebigger than0.14 ac90% of homes93% of homes45% of homes
Year builtnewer than1908almost no homesalmost no homesalmost no homes

About 620 S 31st St

How much is 620 S 31st St, Richmond, CA worth?

The TopHap Estimate for 620 S 31st St, Richmond, CA is $514,794 as of Jul 14, 2026. The likely range is $462,205 to $567,383. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 620 S 31st St, Richmond, CA last sell?

620 S 31st St, Richmond, CA last sold on Mar 4, 2024 for $575,000, according to the county's recorded deed. TopHap holds 8 recorded sales for this parcel.

How big is 620 S 31st St, Richmond, CA?

620 S 31st St, Richmond, CA has 849 square feet of living space and a 0.14-acre lot.

When was 620 S 31st St, Richmond, CA built?

620 S 31st St, Richmond, CA was built in 1908, making it 118 years old. The building has 1 story.

What schools serve 620 S 31st St, Richmond, CA?

620 S 31st St, Richmond, CA is assigned to Kennedy High School (high), rated D; Coronado Elementary School (elementary), rated D+; DeJean Middle School (middle), rated F. All sit in West Contra Costa Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 620 S 31st St, Richmond, CA compare to other homes in Richmond 94804?

Among the 11,870 homes in Richmond 94804, it is worth more than 41% of them ($514,794 against a typical $542,042), its price per square foot is higher than 86% of them ($606 against a typical $480), it is bigger than 15% of them (849 ft² against a typical 1,193 ft²), its lot is bigger than 93% of them (0.14 ac against a typical 0.1 ac) and it is newer than almost none of them (1908 against a typical 1952). Measured against all of Contra Costa County, it is worth more than 17% 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 620 S 31st St, Richmond, CA?

The 2025 property tax bill for 620 S 31st St, Richmond, CA was $9,830. The county assessed it at $598,230.

More homes on S 31st St

Closest homes

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Assigned schools

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