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Single Family ResidenceResidential
$1,302,414$433 / 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 58How 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
Last sold for $771,000 on Aug 16, 2019

20603 LANARK ST

WINNETKA, CA 91306
4
Beds
3
Baths
3,005 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
2019
Year BuiltThe year the home was originally built, according to county records.

Valuation

$1.3M
$750K low$1.9M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$771,000 · Aug 16, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,374 (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.$860,060 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$486,141
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$373,919
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$843,197

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.33
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
50
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
35
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
80
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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
CountyLOS ANGELES
Lot (acres)The size of the land the home sits on, from county records.0.11
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.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
Sunny Brae Avenue Elementary SchoolC-
Elementary · Grades KG–5 · 0.4 mi
M
John A. Sutter Middle SchoolD
Middle · Grades 6–8 · 1.2 mi
H
Canoga Park High SchoolC
High · Grades 9–12 · 2.1 mi

District: Los Angeles Unified School District

Neighborhood · ZIP 91306These 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.76
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.117
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.413

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.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.18%
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.45,234
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.10,624 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$77,857
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$106,476
Average tempThe average temperature here across a full year.64°F
Annual precipHow much rain and melted snow falls here in a typical year.17 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

20603 Lanark 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.

  • Among the most valuable homes in Winnetka 91306
  • Costs less per square foot than 84% of homes in Los Angeles County
  • Bigger than 96% of homes in Winnetka 91306
  • Among the smallest lots in Winnetka 91306
  • Among the newest homes in Winnetka 91306

What homes are worth in Winnetka 91306

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

This home
$348K$1.1M

This home is worth more than almost all homes in Winnetka 91306.

How it measures up in Winnetka 91306

The dot is this home. The mark in the middle is the typical home in Winnetka 91306.

Estimated value$1,302,414
CheaperTypical $773,636Pricier

Pricier than almost all homes nearby

Price per ft²$433
CheaperTypical $478Pricier

Pricier than 32% of homes nearby

Living area3,005 ft²
SmallerTypical 1,529 ft²Bigger

Bigger than 96% of homes nearby

Lot size0.11 ac
SmallerTypical 0.17 acBigger

Smaller than almost all homes nearby

Year built2019
OlderTypical 1956Newer

Newer than almost all homes nearby

How 20603 Lanark St ranks against every home in each area.
MeasureThis homeWinnetka 91306Los Angeles County
Estimated valuepricier than$1,302,414almost all homes78% of homes
Price per ft²pricier than$43332% of homes16% of homes
Living areabigger than3,005 ft²96% of homes88% of homes
Lot sizebigger than0.11 acalmost no homes8% of homes
Year builtnewer than2019almost all homesalmost all homes

About 20603 Lanark St

How much is 20603 Lanark St, Winnetka, CA worth?

The TopHap Estimate for 20603 Lanark St, Winnetka, CA is $1,302,414 as of Sep 24, 2026. The likely range is $749,676 to $1,855,152. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20603 Lanark St, Winnetka, CA last sell?

20603 Lanark St, Winnetka, CA last sold on Aug 16, 2019 for $771,000, according to the county's recorded deed.

How big is 20603 Lanark St, Winnetka, CA?

20603 Lanark St, Winnetka, CA has 4 bedrooms, 3 bathrooms, 3,005 square feet of living space and a 0.11-acre lot.

When was 20603 Lanark St, Winnetka, CA built?

20603 Lanark St, Winnetka, CA was built in 2019, making it 7 years old.

What schools serve 20603 Lanark St, Winnetka, CA?

20603 Lanark St, Winnetka, CA is assigned to Sunny Brae Avenue Elementary School (elementary), rated C-; John A. Sutter Middle School (middle), rated D; Canoga Park 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 20603 Lanark St, Winnetka, CA compare to other homes in Winnetka 91306?

Among the 10,719 homes in Winnetka 91306, it is worth more than almost all of them ($1,302,414 against a typical $773,636), its price per square foot is higher than 32% of them ($433 against a typical $478), it is bigger than 96% of them (3,005 ft² against a typical 1,529 ft²), its lot is bigger than almost none of them (0.11 ac against a typical 0.17 ac) and it is newer than almost all of them (2019 against a typical 1956). 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 20603 Lanark St, Winnetka, CA?

The 2025 property tax bill for 20603 Lanark St, Winnetka, CA was $10,374. The county assessed it at $860,060.

More homes on Lanark St

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