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Single Family ResidenceResidential
$1,283,178$718 / 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 Oct 21, 2026
Last sold for $830,500 on May 24, 2016

2241 SANTA ROSA AVE

ALTADENA, CA 91001
3
Beds
2
Baths
1,788 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.
0.23 ac
Lot SizeThe size of the land the home sits on, from county records.
1955
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

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.$830,500 · May 24, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,790 (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.$1,002,315 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$620,999
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$381,316
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$982,663

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyLOS ANGELES
Lot (acres)The size of the land the home sits on, from county records.0.23
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.Wood Shingle
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

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.

E
Altadena Arts Magnet SchoolB
Elementary · Grades KG–5 · 0.3 mi
M
Charles W. Eliot Arts Magnet AcademyD
Middle · Grades 6–8 · 0.5 mi
H
John Muir High SchoolC-
High · Grades 9–12 · 1.3 mi

District: Pasadena Unified School District

Neighborhood · ZIP 91001These 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.56
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 100.728

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.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.5%
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.34,397
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,046 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$132,057
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$176,224
Average tempThe average temperature here across a full year.59°F
Annual precipHow much rain and melted snow falls here in a typical year.34 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

2241 Santa Rosa 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 more than 78% of homes in Los Angeles County
  • Costs more per square foot than 74% of homes in Los Angeles County
  • Has a bigger lot than 71% of homes in Los Angeles County
  • Newer than 82% of homes in Altadena

What homes are worth in Altadena 91001

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

This home
$603K$2.7M

This home is worth more than 69% of homes in Altadena 91001.

How it measures up in Altadena 91001

The dot is this home. The mark in the middle is the typical home in Altadena 91001.

Estimated value$1,283,178
CheaperTypical $1,035,016Pricier

Pricier than 69% of homes nearby

Price per ft²$718
CheaperTypical $663Pricier

Pricier than 63% of homes nearby

Living area1,788 ft²
SmallerTypical 1,616 ft²Bigger

Bigger than 59% of homes nearby

Lot size0.23 ac
SmallerTypical 0.2 acBigger

Bigger than 66% of homes nearby

Year built1955
OlderTypical 1947Newer

Newer than 80% of homes nearby

How 2241 Santa Rosa Ave ranks against every home in each area.
MeasureThis homeAltadenaAltadena 91001Los Angeles County
Estimated valuepricier than$1,283,17866% of homes69% of homes78% of homes
Price per ft²pricier than$71857% of homes63% of homes74% of homes
Living areabigger than1,788 ft²60% of homes59% of homes61% of homes
Lot sizebigger than0.23 ac69% of homes66% of homes71% of homes
Year builtnewer than195582% of homes80% of homes47% of homes

About 2241 Santa Rosa Ave

How much is 2241 Santa Rosa Ave, Altadena, CA worth?

The TopHap Estimate for 2241 Santa Rosa Ave, Altadena, CA is $1,283,178 as of Oct 21, 2026. The likely range is $1,245,325 to $1,321,031. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 2241 Santa Rosa Ave, Altadena, CA last sell?

2241 Santa Rosa Ave, Altadena, CA last sold on May 24, 2016 for $830,500, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 2241 Santa Rosa Ave, Altadena, CA?

2241 Santa Rosa Ave, Altadena, CA has 3 bedrooms, 2 bathrooms, 1,788 square feet of living space and a 0.23-acre lot.

When was 2241 Santa Rosa Ave, Altadena, CA built?

2241 Santa Rosa Ave, Altadena, CA was built in 1955, making it 71 years old. The building has 1 story.

What schools serve 2241 Santa Rosa Ave, Altadena, CA?

2241 Santa Rosa Ave, Altadena, CA is assigned to Altadena Arts Magnet School (elementary), rated B; Charles W. Eliot Arts Magnet Academy (middle), rated D; John Muir High School (high), rated C-. All sit in Pasadena Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 2241 Santa Rosa Ave, Altadena, CA compare to other homes in Altadena 91001?

Among the 11,179 homes in Altadena 91001, it is worth more than 69% of them ($1,283,178 against a typical $1,035,016), its price per square foot is higher than 63% of them ($718 against a typical $663), it is bigger than 59% of them (1,788 ft² against a typical 1,616 ft²), its lot is bigger than 66% of them (0.23 ac against a typical 0.2 ac) and it is newer than 80% of them (1955 against a typical 1947). Measured against all of Los Angeles County, it is worth more than 78% 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 2241 Santa Rosa Ave, Altadena, CA?

The 2025 property tax bill for 2241 Santa Rosa Ave, Altadena, CA was $11,790. The county assessed it at $1,002,315.

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