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Single Family ResidenceResidential
$1,263,300$1,192 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $1,230,000 on Feb 5, 2024

8121 18TH ST

WESTMINSTER, CA 92683
2
Beds
1
Baths
1,060 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.
5
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

$1.3M
$1.2M low$1.3M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,230,000 · Feb 5, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$14,863 (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.$1,279,692 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,098,164
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$181,528
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,254,600

Climate Risk

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.11%
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.0.17
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(5)

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.

M
Warner Middle SchoolA
Middle · Grades 6–8 · 0.4 mi
E
Anderson Elementary SchoolC+
Elementary · Grades KG–6 · 0.8 mi
H
Westminster High SchoolA-
High · Grades 9–12 · 1.4 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%

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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

8121 18th 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 more than 88% of homes in Westminster 92683
  • Among the highest price per square foot in Westminster 92683
  • Smaller than 92% of homes in Westminster 92683
  • 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
$591K$1.5M

This home is worth more than 88% 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$1,263,300
CheaperTypical $999,686Pricier

Pricier than 88% of homes nearby

Price per ft²$1192
CheaperTypical $616Pricier

Pricier than almost all homes nearby

Living area1,060 ft²
SmallerTypical 1,593 ft²Bigger

Bigger than 8% of homes nearby

Lot size0.16 ac
SmallerTypical 0.15 acBigger

Bigger than 63% of homes nearby

Year built1938
OlderTypical 1964Newer

Older than almost all homes nearby

How 8121 18th St ranks against every home in each area.
MeasureThis homeWestminster 92683Orange County
Estimated valuepricier than$1,263,30088% of homes63% of homes
Price per ft²pricier than$1192almost all homes95% of homes
Living areabigger than1,060 ft²8% of homes11% of homes
Lot sizebigger than0.16 ac63% of homes60% of homes
Year builtnewer than1938almost no homes2% of homes

About 8121 18th St

How much is 8121 18th St, Westminster, CA worth?

The TopHap Estimate for 8121 18th St, Westminster, CA is $1,263,300 as of Aug 30, 2026. The likely range is $1,206,583 to $1,320,017. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 8121 18th St, Westminster, CA last sell?

8121 18th St, Westminster, CA last sold on Feb 5, 2024 for $1,230,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 8121 18th St, Westminster, CA?

8121 18th St, Westminster, CA has 2 bedrooms, 1 bathrooms, 1,060 square feet of living space and a 0.17-acre lot.

When was 8121 18th St, Westminster, CA built?

8121 18th St, Westminster, CA was built in 1938, making it 88 years old. The building has 1 story.

What schools serve 8121 18th St, Westminster, CA?

8121 18th St, Westminster, CA is assigned to Warner Middle School (middle), rated A; Anderson Elementary School (elementary), rated C+; 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 8121 18th St, Westminster, CA compare to other homes in Westminster 92683?

Among the 20,048 homes in Westminster 92683, it is worth more than 88% of them ($1,263,300 against a typical $999,686), its price per square foot is higher than almost all of them ($1192 against a typical $616), it is bigger than 8% of them (1,060 ft² against a typical 1,593 ft²), its lot is bigger than 63% 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 63% 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 8121 18th St, Westminster, CA?

The 2025 property tax bill for 8121 18th St, Westminster, CA was $14,863. The county assessed it at $1,279,692.

More homes on 18th St

Closest homes

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Assigned schools

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