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Single Family ResidenceResidential
$1,008,500$503 / 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 Sep 24, 2026

15642 OLDEN ST

RANCHO CASCADES, CA 91342
3
Beds
3
Baths
2,004 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.
0.87 ac
Lot SizeThe size of the land the home sits on, from county records.
1956
Year BuiltThe year the home was originally built, according to county records.
2
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

$1M
$972K low$1M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,470 (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.$433,078 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$113,488
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$319,590
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$424,615

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.Conventional
CountyLOS ANGELES
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1963
Lot (acres)The size of the land the home sits on, from county records.0.87
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.Wall Unit
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

Transaction History(4)

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
Herrick Avenue ElementaryC
Elementary · Grades KG–5 · 0.4 mi
M
Olive Vista Middle SchoolC
Middle · Grades 6–8 · 1.3 mi
H
Sylmar Charter High SchoolC
High · Grades 9–12 · 1.9 mi

District: Los Angeles Unified School District

Neighborhood · ZIP 91342These 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.51
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.710

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.98%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.13%
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.93,742
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,806 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$79,037
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$106,041
Average tempThe average temperature here across a full year.62°F
Annual precipHow much rain and melted snow falls here in a typical year.22 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.73%

Owner Tools

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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

15642 Olden 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 91% of homes in Sylmar 91342
  • Costs less per square foot than 68% of homes in Los Angeles County
  • Bigger than 81% of homes in Sylmar 91342
  • Has a bigger lot than 89% of homes in Los Angeles County
  • Older than 72% of homes in Sylmar 91342

What homes are worth in Sylmar 91342

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

This home
$398K$1.3M

This home is worth more than 91% of homes in Sylmar 91342.

How it measures up in Sylmar 91342

The dot is this home. The mark in the middle is the typical home in Sylmar 91342.

Estimated value$1,008,500
CheaperTypical $746,827Pricier

Pricier than 91% of homes nearby

Price per ft²$503
CheaperTypical $479Pricier

Pricier than 59% of homes nearby

Living area2,004 ft²
SmallerTypical 1,492 ft²Bigger

Bigger than 81% of homes nearby

Lot size0.87 ac
SmallerTypical 0.2 acBigger

Bigger than 78% of homes nearby

Year built1956
OlderTypical 1966Newer

Newer than 28% of homes nearby

How 15642 Olden St ranks against every home in each area.
MeasureThis homeSylmar 91342Los Angeles County
Estimated valuepricier than$1,008,50091% of homes65% of homes
Price per ft²pricier than$50359% of homes32% of homes
Living areabigger than2,004 ft²81% of homes69% of homes
Lot sizebigger than0.87 ac78% of homes89% of homes
Year builtnewer than195628% of homes50% of homes

About 15642 Olden St

How much is 15642 Olden St, Rancho Cascades, CA worth?

The TopHap Estimate for 15642 Olden St, Rancho Cascades, CA is $1,008,500 as of Sep 24, 2026. The likely range is $972,402 to $1,044,598. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 15642 Olden St, Rancho Cascades, CA last sell?

15642 Olden St, Rancho Cascades, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 15642 Olden St, Rancho Cascades, CA?

15642 Olden St, Rancho Cascades, CA has 3 bedrooms, 3 bathrooms, 2,004 square feet of living space and a 0.87-acre lot.

When was 15642 Olden St, Rancho Cascades, CA built?

15642 Olden St, Rancho Cascades, CA was built in 1956, making it 70 years old. It is a conventional home. The building has 2 stories.

What schools serve 15642 Olden St, Rancho Cascades, CA?

15642 Olden St, Rancho Cascades, CA is assigned to Herrick Avenue Elementary (elementary), rated C; Olive Vista Middle School (middle), rated C; Sylmar Charter High School (high), rated C. All sit in Los Angeles Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 15642 Olden St, Rancho Cascades, CA compare to other homes in Sylmar 91342?

Among the 20,581 homes in Sylmar 91342, it is worth more than 91% of them ($1,008,500 against a typical $746,827), its price per square foot is higher than 59% of them ($503 against a typical $479), it is bigger than 81% of them (2,004 ft² against a typical 1,492 ft²), its lot is bigger than 78% of them (0.87 ac against a typical 0.2 ac) and it is newer than 28% of them (1956 against a typical 1966). Measured against all of Los Angeles County, it is worth more than 65% 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 15642 Olden St, Rancho Cascades, CA?

The 2025 property tax bill for 15642 Olden St, Rancho Cascades, CA was $5,470. The county assessed it at $433,078.

More homes on Olden St

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Assigned schools

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