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Single Family ResidenceResidential
$2,488,613$602 / 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 91How 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 $1,488,000 on Jan 19, 2007

20438 GARTEL DR

WALNUT, CA 91789
4
Beds
4
Baths
4,133 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.
1.01 ac
Lot SizeThe size of the land the home sits on, from county records.
1946
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

$2.5M
$2.3M 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.$1,488,000 · Jan 19, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$29,036 (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.$2,402,407 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,508,759
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$893,648
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$2,355,302

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.1974
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.No

Transaction History(8)

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.

M
Suzanne Middle SchoolA
Middle · Grades 6–8 · 0.3 mi
H
Walnut High SchoolA
High · Grades 9–12 · 0.5 mi
E
Vejar Elementary SchoolA
Elementary · Grades KG–5 · 0.9 mi

District: Walnut Valley Unified School District

Neighborhood · ZIP 91789These 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.33
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.36%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.45,013
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,690 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$110,530
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$137,487
Average tempThe average temperature here across a full year.64°F
Annual precipHow much rain and melted snow falls here in a typical year.18 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

20438 Gartel Dr 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 97% of homes in Walnut 91789
  • Costs more per square foot than 73% of homes in Walnut 91789
  • Bigger than 96% of homes in Walnut 91789
  • Has a bigger lot than 93% of homes in Walnut 91789
  • Among the oldest homes in Walnut 91789

What homes are worth in Walnut 91789

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

This home
$519K$2.7M

This home is worth more than 97% of homes in Walnut 91789.

How it measures up in Walnut 91789

The dot is this home. The mark in the middle is the typical home in Walnut 91789.

Estimated value$2,488,613
CheaperTypical $1,108,958Pricier

Pricier than 97% of homes nearby

Price per ft²$602
CheaperTypical $562Pricier

Pricier than 73% of homes nearby

Living area4,133 ft²
SmallerTypical 1,980 ft²Bigger

Bigger than 96% of homes nearby

Lot size1.01 ac
SmallerTypical 0.23 acBigger

Bigger than 93% of homes nearby

Year built1946
OlderTypical 1983Newer

Older than almost all homes nearby

How 20438 Gartel Dr ranks against every home in each area.
MeasureThis homeWalnut 91789Los Angeles County
Estimated valuepricier than$2,488,61397% of homes94% of homes
Price per ft²pricier than$60273% of homes56% of homes
Living areabigger than4,133 ft²96% of homes95% of homes
Lot sizebigger than1.01 ac93% of homes90% of homes
Year builtnewer than1946almost no homes24% of homes

About 20438 Gartel Dr

How much is 20438 Gartel Dr, Walnut, CA worth?

The TopHap Estimate for 20438 Gartel Dr, Walnut, CA is $2,488,613 as of Oct 21, 2026. The likely range is $2,276,533 to $2,700,693. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20438 Gartel Dr, Walnut, CA last sell?

20438 Gartel Dr, Walnut, CA last sold on Jan 19, 2007 for $1,488,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 20438 Gartel Dr, Walnut, CA?

20438 Gartel Dr, Walnut, CA has 4 bedrooms, 4 bathrooms and 4,133 square feet of living space.

When was 20438 Gartel Dr, Walnut, CA built?

20438 Gartel Dr, Walnut, CA was built in 1946, making it 80 years old. It is a conventional home. The building has 1 story.

What schools serve 20438 Gartel Dr, Walnut, CA?

20438 Gartel Dr, Walnut, CA is assigned to Suzanne Middle School (middle), rated A; Walnut High School (high), rated A; Vejar Elementary School (elementary), rated A. All sit in Walnut Valley Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20438 Gartel Dr, Walnut, CA compare to other homes in Walnut 91789?

Among the 13,202 homes in Walnut 91789, it is worth more than 97% of them ($2,488,613 against a typical $1,108,958), its price per square foot is higher than 73% of them ($602 against a typical $562), it is bigger than 96% of them (4,133 ft² against a typical 1,980 ft²), its lot is bigger than 93% of them (1.01 ac against a typical 0.23 ac) and it is newer than almost none of them (1946 against a typical 1983). Measured against all of Los Angeles County, it is worth more than 94% 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 20438 Gartel Dr, Walnut, CA?

The 2025 property tax bill for 20438 Gartel Dr, Walnut, CA was $29,036. The county assessed it at $2,402,407.

More homes on Gartel Dr

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