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Single Family ResidenceResidential
$692,386$453 / 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 97How 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 $280,000 on Jul 23, 2012

621 KEY BLVD

RICHMOND, CA 94805
2
Beds
2
Baths
1,529 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.
4,280 ft²
Lot SizeThe size of the land the home sits on, from county records.
1938
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
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.

Valuation

$692K
$670K low$714K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$280,000 · Jul 23, 2012

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,436 (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.$351,681 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$291,399
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$60,282
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$344,786

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
41
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
27
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
19
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.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

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
Lot (acres)The size of the land the home sits on, from county records.0.10
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(16)

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(2)

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

E
Mira Vista SchoolB+
Elementary · Grades KG–8 · 0.6 mi
H
El Cerrito High SchoolB+
High · Grades 9–12 · 2.7 mi

District: West Contra Costa Unified School District

Neighborhood · ZIP 94805These 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.92
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 100.614

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.15,814
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8,276 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$102,376
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$135,590
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.23 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

621 Key Blvd 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 more than 70% of homes in Richmond Heights
  • Costs less per square foot than 70% of homes in Richmond Heights
  • Bigger than 71% of homes in Richmond Heights
  • Has a smaller lot than 93% of homes in Richmond Heights
  • Older than 96% of homes in Contra Costa County

What homes are worth in Richmond 94805

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

This home
$410K$1.1M

This home is worth more than 63% of homes in Richmond 94805.

How it measures up in Richmond 94805

The dot is this home. The mark in the middle is the typical home in Richmond 94805.

Estimated value$692,386
CheaperTypical $636,456Pricier

Pricier than 63% of homes nearby

Price per ft²$453
CheaperTypical $493Pricier

Pricier than 34% of homes nearby

Living area1,529 ft²
SmallerTypical 1,299 ft²Bigger

Bigger than 66% of homes nearby

Lot size4,280 ft²
SmallerTypical 0.11 acBigger

Bigger than 23% of homes nearby

Year built1938
OlderTypical 1946Newer

Newer than 17% of homes nearby

How 621 Key Blvd ranks against every home in each area.
MeasureThis homeRichmond HeightsRichmond 94805Contra Costa County
Estimated valuepricier than$692,38670% of homes63% of homes44% of homes
Price per ft²pricier than$45330% of homes34% of homes49% of homes
Living areabigger than1,529 ft²71% of homes66% of homes38% of homes
Lot sizebigger than4,280 ft²7% of homes23% of homes22% of homes
Year builtnewer than193820% of homes17% of homes4% of homes

About 621 Key Blvd

How much is 621 Key Blvd, Richmond, CA worth?

The TopHap Estimate for 621 Key Blvd, Richmond, CA is $692,386 as of Sep 24, 2026. The likely range is $670,479 to $714,293. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 621 Key Blvd, Richmond, CA last sell?

621 Key Blvd, Richmond, CA last sold on Jul 23, 2012 for $280,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 621 Key Blvd, Richmond, CA?

621 Key Blvd, Richmond, CA has 2 bedrooms, 2 bathrooms, 1,529 square feet of living space and a 0.10-acre lot.

When was 621 Key Blvd, Richmond, CA built?

621 Key Blvd, Richmond, CA was built in 1938, making it 88 years old. The building has 1 story.

What schools serve 621 Key Blvd, Richmond, CA?

621 Key Blvd, Richmond, CA is assigned to Mira Vista School (elementary), rated B+; El Cerrito High School (high), rated B+. All sit in West Contra Costa Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 621 Key Blvd, Richmond, CA compare to other homes in Richmond 94805?

Among the 4,505 homes in Richmond 94805, it is worth more than 63% of them ($692,386 against a typical $636,456), its price per square foot is higher than 34% of them ($453 against a typical $493), it is bigger than 66% of them (1,529 ft² against a typical 1,299 ft²), its lot is bigger than 23% of them (4,280 ft² against a typical 0.11 ac) and it is newer than 17% of them (1938 against a typical 1946). Measured against all of Contra Costa County, it is worth more than 44% 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 621 Key Blvd, Richmond, CA?

The 2025 property tax bill for 621 Key Blvd, Richmond, CA was $6,436. The county assessed it at $351,681.

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