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Residential - Vacant LandResidential
Last sold for $540,000 on Sep 29, 2025

263 W MARIPOSA ST

ALTADENA, CA 91001
3
Beds
1
Baths
1,259 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
1925
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$540,000 · Sep 29, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,111 (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.$540,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$540,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$264,861

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential - Vacant Land
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.0.20
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(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.

H
John Muir High SchoolC-
High · Grades 9–12 · 1.2 mi
E
Altadena Arts Magnet SchoolC+
Elementary · Grades KG–5 · 1.3 mi
M
Charles W. Eliot Arts Magnet AcademyD
Middle · Grades 6–8 · 1.6 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

263 W Mariposa 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.

  • Smaller than 76% of homes in Altadena
  • Has a bigger lot than 65% of homes in Los Angeles County
  • Older than 90% of homes in Los Angeles County

How it measures up in Altadena 91001

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

Living area1,259 ft²
SmallerTypical 1,617 ft²Bigger

Bigger than 25% of homes nearby

Lot size0.2 ac
SmallerTypical 0.2 acBigger

Bigger than 50% of homes nearby

Year built1925
OlderTypical 1947Newer

Newer than 20% of homes nearby

How 263 W Mariposa St ranks against every home in each area.
MeasureThis homeAltadenaAltadena 91001Los Angeles County
Living areabigger than1,259 ft²24% of homes25% of homes28% of homes
Lot sizebigger than0.2 ac53% of homes50% of homes65% of homes
Year builtnewer than192520% of homes20% of homes10% of homes

About 263 W Mariposa St

When did 263 W Mariposa St, Altadena, CA last sell?

263 W Mariposa St, Altadena, CA last sold on Sep 29, 2025 for $540,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 263 W Mariposa St, Altadena, CA?

263 W Mariposa St, Altadena, CA has 3 bedrooms, 1 bathrooms, 1,259 square feet of living space and a 0.20-acre lot.

When was 263 W Mariposa St, Altadena, CA built?

263 W Mariposa St, Altadena, CA was built in 1925, making it 101 years old. It is a conventional home. The building has 1 story.

What schools serve 263 W Mariposa St, Altadena, CA?

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

How does 263 W Mariposa St, Altadena, CA compare to other homes in Altadena 91001?

Among the 11,174 homes in Altadena 91001, it is bigger than 25% of them (1,259 ft² against a typical 1,617 ft²), its lot is bigger than 50% of them (0.2 ac against a typical 0.2 ac) and it is newer than 20% of them (1925 against a typical 1947). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 263 W Mariposa St, Altadena, CA?

The 2025 property tax bill for 263 W Mariposa St, Altadena, CA was $3,111. The county assessed it at $540,000.

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