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Single Family ResidenceResidential
$939,621$672 / 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 88How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $610,000 on Aug 25, 2017

20 ATHERTON

IRVINE, CA 92620
2
Beds
2.5
Baths
1,398 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.
2,300 ft²
Lot SizeThe size of the land the home sits on, from county records.
1980
Year BuiltThe year the home was originally built, according to county records.
2
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

$940K
$823K low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$610,000 · Aug 25, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,337 (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.$707,954 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$579,224
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$128,730
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$694,073

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.7 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
StyleThe architectural style of the home, such as ranch or colonial.Traditional/Old
CountyORANGE
Lot (acres)The size of the land the home sits on, from county records.0.05
RoofThe main material covering the roof, such as asphalt shingle or tile.Wood Shingle
HeatingThe type of heating system in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(9)

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
Sierra Vista Middle SchoolA+
Middle · Grades 7–8 · 0.1 mi
E
Brywood Elementary SchoolA+
Elementary · Grades KG–6 · 0.6 mi
H
Northwood High SchoolA+
High · Grades 9–12 · 1.5 mi

District: Irvine Unified School District

Neighborhood · ZIP 92620These 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.83
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.250

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.39%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.59,543
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.10,436 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$134,293
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$165,456
Average tempThe average temperature here across a full year.63°F
Annual precipHow much rain and melted snow falls here in a typical year.14 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

20 Atherton 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 91% of homes in Irvine 92620
  • Costs less per square foot than 89% of homes in Irvine 92620
  • Smaller than 82% of homes in Irvine 92620
  • Has a smaller lot than 97% of homes in Irvine 92620
  • Older than 75% of homes in Irvine 92620

What homes are worth in Irvine 92620

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

This home
$575K$3.2M

This home is worth more than 9% of homes in Irvine 92620.

How it measures up in Irvine 92620

The dot is this home. The mark in the middle is the typical home in Irvine 92620.

Estimated value$939,621
CheaperTypical $1,601,383Pricier

Pricier than 9% of homes nearby

Price per ft²$672
CheaperTypical $795Pricier

Pricier than 11% of homes nearby

Living area1,398 ft²
SmallerTypical 2,052 ft²Bigger

Bigger than 18% of homes nearby

Lot size2,300 ft²
SmallerTypical 0.11 acBigger

Bigger than 3% of homes nearby

Year built1980
OlderTypical 2004Newer

Newer than 25% of homes nearby

How 20 Atherton ranks against every home in each area.
MeasureThis homeNorthwoodIrvine 92620Orange County
Estimated valuepricier than$939,62119% of homes9% of homes34% of homes
Price per ft²pricier than$67220% of homes11% of homes54% of homes
Living areabigger than1,398 ft²26% of homes18% of homes31% of homes
Lot sizebigger than2,300 ft²5% of homes3% of homes5% of homes
Year builtnewer than198061% of homes25% of homes61% of homes

About 20 Atherton

How much is 20 Atherton, Irvine, CA worth?

The TopHap Estimate for 20 Atherton, Irvine, CA is $939,621 as of Oct 21, 2026. The likely range is $822,738 to $1,056,504. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 Atherton, Irvine, CA last sell?

20 Atherton, Irvine, CA last sold on Aug 25, 2017 for $610,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 20 Atherton, Irvine, CA?

20 Atherton, Irvine, CA has 2 bedrooms, 2.5 bathrooms, 1,398 square feet of living space and a 0.05-acre lot.

When was 20 Atherton, Irvine, CA built?

20 Atherton, Irvine, CA was built in 1980, making it 46 years old. It is a traditional/old home. The building has 2 stories.

What schools serve 20 Atherton, Irvine, CA?

20 Atherton, Irvine, CA is assigned to Sierra Vista Middle School (middle), rated A+; Brywood Elementary School (elementary), rated A+; Northwood High School (high), rated A+. All sit in Irvine Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 Atherton, Irvine, CA compare to other homes in Irvine 92620?

Among the 17,359 homes in Irvine 92620, it is worth more than 9% of them ($939,621 against a typical $1,601,383), its price per square foot is higher than 11% of them ($672 against a typical $795), it is bigger than 18% of them (1,398 ft² against a typical 2,052 ft²), its lot is bigger than 3% of them (2,300 ft² against a typical 0.11 ac) and it is newer than 25% of them (1980 against a typical 2004). Measured against all of Orange County, it is worth more than 34% 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 20 Atherton, Irvine, CA?

The 2025 property tax bill for 20 Atherton, Irvine, CA was $7,337. The county assessed it at $707,954.

More homes on Atherton

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Assigned schools

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