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Single Family ResidenceResidential
$234,016$316 / 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 74How 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 $140,000 on Sep 11, 2024

3817 21ST AVE

SACRAMENTO, CA 95820
2
Beds
1
Baths
740 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.
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
1934
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
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

$234K
$174K low$294K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$140,000 · Sep 11, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,802 (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.$270,300 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$112,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$158,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$140,000

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.34
10
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
45
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
49
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
41
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
26
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.6 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.minimal

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
CountySACRAMENTO
Lot (acres)The size of the land the home sits on, from county records.0.12
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(10)

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(1)

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

E
Oak Ridge Elementary SchoolC+
Elementary · Grades KG–6 · 0.1 mi
M
California Middle SchoolC
Middle · Grades 7–8 · 2.1 mi
H
Hiram Johnson High SchoolD
High · Grades 9–12 · 2.2 mi

District: Sacramento City Unified School District

Neighborhood · ZIP 95820These 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.126
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.109

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.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.17%
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.37,742
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.7,020 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$64,991
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$87,154
Average tempThe average temperature here across a full year.61°F
Annual precipHow much rain and melted snow falls here in a typical year.19 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

3817 21st Ave 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 98% of homes in Sacramento County
  • Among the smallest homes in Sacramento County
  • Has a smaller lot than 80% of homes in Sacramento County
  • Older than 97% of homes in Sacramento County

What homes are worth in Sacramento 95820

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

This home
$216K$609K

This home is worth more than 4% of homes in Sacramento 95820.

How it measures up in Sacramento 95820

The dot is this home. The mark in the middle is the typical home in Sacramento 95820.

Estimated value$234,016
CheaperTypical $364,647Pricier

Pricier than 4% of homes nearby

Price per ft²$316
CheaperTypical $323Pricier

Pricier than 47% of homes nearby

Living area740 ft²
SmallerTypical 1,140 ft²Bigger

Bigger than 5% of homes nearby

Lot size0.12 ac
SmallerTypical 0.13 acBigger

Bigger than 21% of homes nearby

Year built1934
OlderTypical 1950Newer

Newer than 14% of homes nearby

How 3817 21st Ave ranks against every home in each area.
MeasureThis homeSouth Oak ParkSacramento 95820Sacramento County
Estimated valuepricier than$234,01614% of homes4% of homes2% of homes
Price per ft²pricier than$31662% of homes47% of homes51% of homes
Living areabigger than740 ft²13% of homes5% of homesalmost no homes
Lot sizebigger than0.12 ac24% of homes21% of homes20% of homes
Year builtnewer than193421% of homes14% of homes3% of homes

About 3817 21st Ave

How much is 3817 21st Ave, Sacramento, CA worth?

The TopHap Estimate for 3817 21st Ave, Sacramento, CA is $234,016 as of Sep 24, 2026. The likely range is $173,666 to $294,366. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3817 21st Ave, Sacramento, CA last sell?

3817 21st Ave, Sacramento, CA last sold on Sep 11, 2024 for $140,000, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 3817 21st Ave, Sacramento, CA?

3817 21st Ave, Sacramento, CA has 2 bedrooms, 1 bathrooms, 740 square feet of living space and a 0.12-acre lot.

When was 3817 21st Ave, Sacramento, CA built?

3817 21st Ave, Sacramento, CA was built in 1934, making it 92 years old. The building has 1 story.

What schools serve 3817 21st Ave, Sacramento, CA?

3817 21st Ave, Sacramento, CA is assigned to Oak Ridge Elementary School (elementary), rated C+; California Middle School (middle), rated C; Hiram Johnson High School (high), rated D. All sit in Sacramento City Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3817 21st Ave, Sacramento, CA compare to other homes in Sacramento 95820?

Among the 11,541 homes in Sacramento 95820, it is worth more than 4% of them ($234,016 against a typical $364,647), its price per square foot is higher than 47% of them ($316 against a typical $323), it is bigger than 5% of them (740 ft² against a typical 1,140 ft²), its lot is bigger than 21% of them (0.12 ac against a typical 0.13 ac) and it is newer than 14% of them (1934 against a typical 1950). Measured against all of Sacramento County, it is worth more than 2% 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 3817 21st Ave, Sacramento, CA?

The 2025 property tax bill for 3817 21st Ave, Sacramento, CA was $1,802. The county assessed it at $270,300.

More homes on 21st Ave

Closest homes

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Assigned schools

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