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Single Family ResidenceResidential
$2,591,473$448 / 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 95How 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
Last sold for $1,900,000 on Jun 16, 2009

10521 WINNETKA AVE

CHATSWORTH, CA 91311
5
Beds
5
Baths
5,791 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.
2.01 ac
Lot SizeThe size of the land the home sits on, from county records.
1990
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$2.6M
$2.5M low$2.7M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,900,000 · Jun 16, 2009
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$811,473
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$649,178
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.70%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$1,280,000
BANK OF AMERICA · recorded Jul 1, 2013
2nd MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$500,000
BANK OF AMERICA

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$30,167 (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.$2,446,738 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,345,709
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,101,029
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$2,398,764

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.Tudor
CountyLOS ANGELES
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
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

Transaction History(13)

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
Germain Academy for Academic AchievementC+
Elementary · Grades KG–5 · 0.8 mi
H
Chatsworth Charter High SchoolC
High · Grades 9–12 · 1.0 mi
M
Ernest Lawrence Middle SchoolB
Middle · Grades 6–8 · 1.3 mi

District: Los Angeles Unified School District

Neighborhood · ZIP 91311These 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.71
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.110
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.542

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.8%
PopulationHow many people live in this area.39,491
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,550 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$107,403
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$137,839
Average tempThe average temperature here across a full year.63°F
Annual precipHow much rain and melted snow falls here in a typical year.20 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.73%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

10521 Winnetka 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 98% of homes in Chatsworth 91311
  • Costs less per square foot than 78% of homes in Los Angeles County
  • Bigger than 98% of homes in Chatsworth
  • Has a bigger lot than 94% of homes in Los Angeles County
  • Newer than 89% of homes in Chatsworth 91311

What homes are worth in Chatsworth 91311

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

This home
$479K$2.7M

This home is worth more than 98% of homes in Chatsworth 91311.

How it measures up in Chatsworth 91311

The dot is this home. The mark in the middle is the typical home in Chatsworth 91311.

Estimated value$2,591,473
CheaperTypical $898,207Pricier

Pricier than 98% of homes nearby

Price per ft²$448
CheaperTypical $466Pricier

Pricier than 41% of homes nearby

Living area5,791 ft²
SmallerTypical 1,878 ft²Bigger

Bigger than 97% of homes nearby

Lot size2.01 ac
SmallerTypical 0.27 acBigger

Bigger than 83% of homes nearby

Year built1990
OlderTypical 1974Newer

Newer than 89% of homes nearby

How 10521 Winnetka Ave ranks against every home in each area.
MeasureThis homeChatsworthChatsworth 91311Los Angeles County
Estimated valuepricier than$2,591,47397% of homes98% of homes95% of homes
Price per ft²pricier than$44833% of homes41% of homes22% of homes
Living areabigger than5,791 ft²98% of homes97% of homes97% of homes
Lot sizebigger than2.01 ac84% of homes83% of homes94% of homes
Year builtnewer than199072% of homes89% of homes87% of homes

About 10521 Winnetka Ave

How much is 10521 Winnetka Ave, Chatsworth, CA worth?

The TopHap Estimate for 10521 Winnetka Ave, Chatsworth, CA is $2,591,473 as of Jul 14, 2026. The likely range is $2,462,057 to $2,720,889. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 10521 Winnetka Ave, Chatsworth, CA last sell?

10521 Winnetka Ave, Chatsworth, CA last sold on Jun 16, 2009 for $1,900,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 10521 Winnetka Ave, Chatsworth, CA?

10521 Winnetka Ave, Chatsworth, CA has 5 bedrooms, 5 bathrooms and 5,791 square feet of living space.

When was 10521 Winnetka Ave, Chatsworth, CA built?

10521 Winnetka Ave, Chatsworth, CA was built in 1990, making it 36 years old. It is a tudor home. The building has 2 stories.

What schools serve 10521 Winnetka Ave, Chatsworth, CA?

10521 Winnetka Ave, Chatsworth, CA is assigned to Germain Academy for Academic Achievement (elementary), rated C+; Chatsworth Charter High School (high), rated C; Ernest Lawrence Middle School (middle), rated B. All sit in Los Angeles Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 10521 Winnetka Ave, Chatsworth, CA compare to other homes in Chatsworth 91311?

Among the 11,368 homes in Chatsworth 91311, it is worth more than 98% of them ($2,591,473 against a typical $898,207), its price per square foot is higher than 41% of them ($448 against a typical $466), it is bigger than 97% of them (5,791 ft² against a typical 1,878 ft²), its lot is bigger than 83% of them (2.01 ac against a typical 0.27 ac) and it is newer than 89% of them (1990 against a typical 1974). Measured against all of Los Angeles County, it is worth more than 95% 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 10521 Winnetka Ave, Chatsworth, CA?

The 2025 property tax bill for 10521 Winnetka Ave, Chatsworth, CA was $30,167. The county assessed it at $2,446,738.

Closest homes

More homes in Chatsworth 91311

Assigned schools

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