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Single Family ResidenceResidential
$693,692$997 / 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 91How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

1820 ATCHISON ST

PASADENA, CA 91104
2
Beds
1
Baths
696 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.
2,781 ft²
Lot SizeThe size of the land the home sits on, from county records.
1926
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.

Valuation

$694K
$632K low$756K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,556 (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.$88,766 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$69,699
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$19,067
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$87,027

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.Conventional
CountyLOS ANGELES
Lot (acres)The size of the land the home sits on, from county records.0.06
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.Floor/Wall Furnace
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(2)

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
Daniel Webster Elementary SchoolC+
Elementary · Grades KG–5 · 0.6 mi
M
Charles W. Eliot Arts Magnet AcademyD
Middle · Grades 6–8 · 1.1 mi
H
Pasadena High SchoolB+
High · Grades 9–12 · 1.5 mi

District: Pasadena Unified School District

Neighborhood · ZIP 91104These 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.107
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.610

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.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.7%
PopulationHow many people live in this area.34,066
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8,920 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$95,577
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$138,737
Average tempThe average temperature here across a full year.64°F
Annual precipHow much rain and melted snow falls here in a typical year.21 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.73%

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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

1820 Atchison 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 97% of homes in Altadena
  • Costs more per square foot than 95% of homes in Altadena
  • Among the smallest homes in Altadena
  • Among the smallest lots in Altadena
  • Older than 89% of homes in Los Angeles County

What homes are worth in Pasadena 91104

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

This home
$636K$2.2M

This home is worth more than 4% of homes in Pasadena 91104.

How it measures up in Pasadena 91104

The dot is this home. The mark in the middle is the typical home in Pasadena 91104.

Estimated value$693,692
CheaperTypical $1,227,645Pricier

Pricier than 4% of homes nearby

Price per ft²$997
CheaperTypical $826Pricier

Pricier than 87% of homes nearby

Living area696 ft²
SmallerTypical 1,557 ft²Bigger

Bigger than 2% of homes nearby

Lot size2,781 ft²
SmallerTypical 0.18 acBigger

Smaller than almost all homes nearby

Year built1926
OlderTypical 1925Newer

Newer than 56% of homes nearby

How 1820 Atchison St ranks against every home in each area.
MeasureThis homeAltadenaPasadena 91104Los Angeles County
Estimated valuepricier than$693,6923% of homes4% of homes32% of homes
Price per ft²pricier than$99795% of homes87% of homes93% of homes
Living areabigger than696 ft²almost no homes2% of homes2% of homes
Lot sizebigger than2,781 ft²almost no homesalmost no homes2% of homes
Year builtnewer than192623% of homes56% of homes11% of homes

About 1820 Atchison St

How much is 1820 Atchison St, Pasadena, CA worth?

The TopHap Estimate for 1820 Atchison St, Pasadena, CA is $693,692 as of Jul 14, 2026. The likely range is $631,525 to $755,859. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1820 Atchison St, Pasadena, CA last sell?

1820 Atchison St, Pasadena, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 1820 Atchison St, Pasadena, CA?

1820 Atchison St, Pasadena, CA has 2 bedrooms, 1 bathrooms, 696 square feet of living space and a 0.06-acre lot.

When was 1820 Atchison St, Pasadena, CA built?

1820 Atchison St, Pasadena, CA was built in 1926, making it 100 years old. It is a conventional home. The building has 1 story.

What schools serve 1820 Atchison St, Pasadena, CA?

1820 Atchison St, Pasadena, CA is assigned to Daniel Webster Elementary School (elementary), rated C+; Charles W. Eliot Arts Magnet Academy (middle), rated D; Pasadena High School (high), rated B+. All sit in Pasadena Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1820 Atchison St, Pasadena, CA compare to other homes in Pasadena 91104?

Among the 8,928 homes in Pasadena 91104, it is worth more than 4% of them ($693,692 against a typical $1,227,645), its price per square foot is higher than 87% of them ($997 against a typical $826), it is bigger than 2% of them (696 ft² against a typical 1,557 ft²), its lot is bigger than almost none of them (2,781 ft² against a typical 0.18 ac) and it is newer than 56% of them (1926 against a typical 1925). Measured against all of Los Angeles County, it is worth more than 32% 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 1820 Atchison St, Pasadena, CA?

The 2025 property tax bill for 1820 Atchison St, Pasadena, CA was $1,556. The county assessed it at $88,766.

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