Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$954,676$717 / 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 $345,000 on May 29, 2012

8142 21ST ST

WESTMINSTER, CA 92683
2
Beds
2
Baths
1,332 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.
0.16 ac
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.
6
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

$955K
$929K low$981K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$345,000 · May 29, 2012

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,419 (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.$441,998 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$406,971
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$35,027
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$433,332

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
28
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.
38
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
14
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
88
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.4 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.0.2 percent flood zone

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
CountyORANGE
Lot (acres)The size of the land the home sits on, from county records.0.16
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.

E
Meairs Elementary SchoolA-
Elementary · Grades KG–5 · 0.4 mi
M
Warner Middle SchoolA
Middle · Grades 6–8 · 0.5 mi
H
Westminster High SchoolA-
High · Grades 9–12 · 1.5 mi

District: Westminster Elementary School District

Neighborhood · ZIP 92683These 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.101
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.333

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.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.92,524
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.7,922 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$78,315
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$102,604
Average tempThe average temperature here across a full year.63°F
Annual precipHow much rain and melted snow falls here in a typical year.12 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.75%

Owner Tools

Do you own this home?
Claim this home

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

8142 21st 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 68% of homes in Westminster 92683
  • Costs more per square foot than 71% of homes in Westminster 92683
  • Smaller than 73% of homes in Orange County
  • Among the oldest homes in Westminster 92683

What homes are worth in Westminster 92683

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

This home
$626K$1.5M

This home is worth more than 32% of homes in Westminster 92683.

How it measures up in Westminster 92683

The dot is this home. The mark in the middle is the typical home in Westminster 92683.

Estimated value$954,676
CheaperTypical $1,034,183Pricier

Pricier than 32% of homes nearby

Price per ft²$717
CheaperTypical $632Pricier

Pricier than 71% of homes nearby

Living area1,332 ft²
SmallerTypical 1,594 ft²Bigger

Bigger than 30% of homes nearby

Lot size0.16 ac
SmallerTypical 0.15 acBigger

Bigger than 59% of homes nearby

Year built1938
OlderTypical 1964Newer

Older than almost all homes nearby

How 8142 21st St ranks against every home in each area.
MeasureThis homeWestminster 92683Orange County
Estimated valuepricier than$954,67632% of homes35% of homes
Price per ft²pricier than$71771% of homes64% of homes
Living areabigger than1,332 ft²30% of homes27% of homes
Lot sizebigger than0.16 ac59% of homes57% of homes
Year builtnewer than1938almost no homes3% of homes

About 8142 21st St

How much is 8142 21st St, Westminster, CA worth?

The TopHap Estimate for 8142 21st St, Westminster, CA is $954,676 as of Sep 24, 2026. The likely range is $928,722 to $980,630. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 8142 21st St, Westminster, CA last sell?

8142 21st St, Westminster, CA last sold on May 29, 2012 for $345,000, according to the county's recorded deed.

How big is 8142 21st St, Westminster, CA?

8142 21st St, Westminster, CA has 2 bedrooms, 2 bathrooms, 1,332 square feet of living space and a 0.16-acre lot.

When was 8142 21st St, Westminster, CA built?

8142 21st St, Westminster, CA was built in 1938, making it 88 years old. The building has 1 story.

What schools serve 8142 21st St, Westminster, CA?

8142 21st St, Westminster, CA is assigned to Meairs Elementary School (elementary), rated A-; Warner Middle School (middle), rated A; Westminster High School (high), rated A-. All sit in Westminster Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 8142 21st St, Westminster, CA compare to other homes in Westminster 92683?

Among the 20,050 homes in Westminster 92683, it is worth more than 32% of them ($954,676 against a typical $1,034,183), its price per square foot is higher than 71% of them ($717 against a typical $632), it is bigger than 30% of them (1,332 ft² against a typical 1,594 ft²), its lot is bigger than 59% of them (0.16 ac against a typical 0.15 ac) and it is newer than almost none of them (1938 against a typical 1964). Measured against all of Orange County, it is worth more than 35% 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 8142 21st St, Westminster, CA?

The 2025 property tax bill for 8142 21st St, Westminster, CA was $5,419. The county assessed it at $441,998.

More homes on 21st St

Closest homes

More homes in Westminster 92683

Assigned schools

Explore the area

See this home in context

Open 8142 21st St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map