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CondominiumResidential
$425,902$514 / 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 97How 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 $304,000 on Jun 24, 2016

800 GRAND AVE

DIAMOND BAR, CA 91765
Building report
2
Beds
2
Baths
828 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.
4.48 ac
Lot SizeThe size of the land the home sits on, from county records.
1992
Year BuiltThe year the home was originally built, according to county records.

Valuation

$426K
$414K low$438K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$304,000 · Jun 24, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,781 (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.$367,062 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$218,788
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$148,274
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$359,866

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyLOS ANGELES
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.Central
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.

Foreclosure Filings(1)

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

M
Chaparral Middle SchoolA+
Middle · Grades 6–8 · 0.7 mi
E
Maple Hill Elementary SchoolA+
Elementary · Grades KG–5 · 0.7 mi
H
Diamond Bar High SchoolA
High · Grades 9–12 · 1.9 mi

District: Walnut Valley Unified School District

Neighborhood · ZIP 91765These 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.46
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.101
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.388

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.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.2%
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.41,302
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,738 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$98,979
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$125,933
Average tempThe average temperature here across a full year.63°F
Annual precipHow much rain and melted snow falls here in a typical year.19 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

800 Grand 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 less than 96% of homes in Diamond Bar 91765
  • Costs less per square foot than 65% of homes in Los Angeles County
  • Smaller than 97% of homes in Diamond Bar 91765
  • Has a bigger lot than 98% of homes in Los Angeles County
  • Newer than 92% of homes in Diamond Bar 91765

What homes are worth in Diamond Bar 91765

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

This home
$346K$3.4M

This home is worth more than 4% of homes in Diamond Bar 91765.

How it measures up in Diamond Bar 91765

The dot is this home. The mark in the middle is the typical home in Diamond Bar 91765.

Estimated value$425,902
CheaperTypical $981,384Pricier

Pricier than 4% of homes nearby

Price per ft²$514
CheaperTypical $535Pricier

Pricier than 38% of homes nearby

Living area828 ft²
SmallerTypical 1,816 ft²Bigger

Bigger than 3% of homes nearby

Lot size4.48 ac
SmallerTypical 0.25 acBigger

Bigger than 89% of homes nearby

Year built1992
OlderTypical 1979Newer

Newer than 92% of homes nearby

How 800 Grand Ave ranks against every home in each area.
MeasureThis homeDiamond Bar 91765Los Angeles County
Estimated valuepricier than$425,9024% of homes4% of homes
Price per ft²pricier than$51438% of homes35% of homes
Living areabigger than828 ft²3% of homes5% of homes
Lot sizebigger than4.48 ac89% of homes98% of homes
Year builtnewer than199292% of homes88% of homes

About 800 Grand Ave

How much is 800 Grand Ave, Diamond Bar, CA worth?

The TopHap Estimate for 800 Grand Ave, Diamond Bar, CA is $425,902 as of Sep 24, 2026. The likely range is $413,915 to $437,889. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 800 Grand Ave, Diamond Bar, CA last sell?

800 Grand Ave, Diamond Bar, CA last sold on Jun 24, 2016 for $304,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 800 Grand Ave, Diamond Bar, CA?

800 Grand Ave, Diamond Bar, CA has 2 bedrooms, 2 bathrooms and 828 square feet of living space.

When was 800 Grand Ave, Diamond Bar, CA built?

800 Grand Ave, Diamond Bar, CA was built in 1992, making it 34 years old. It is a condo/apartment home.

What schools serve 800 Grand Ave, Diamond Bar, CA?

800 Grand Ave, Diamond Bar, CA is assigned to Chaparral Middle School (middle), rated A+; Maple Hill Elementary School (elementary), rated A+; Diamond Bar High School (high), rated A. All sit in Walnut Valley Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 800 Grand Ave, Diamond Bar, CA compare to other homes in Diamond Bar 91765?

Among the 15,284 homes in Diamond Bar 91765, it is worth more than 4% of them ($425,902 against a typical $981,384), its price per square foot is higher than 38% of them ($514 against a typical $535), it is bigger than 3% of them (828 ft² against a typical 1,816 ft²), its lot is bigger than 89% of them (4.48 ac against a typical 0.25 ac) and it is newer than 92% of them (1992 against a typical 1979). Measured against all of Los Angeles County, it is worth more than 4% 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 800 Grand Ave, Diamond Bar, CA?

The 2025 property tax bill for 800 Grand Ave, Diamond Bar, CA was $4,781. The county assessed it at $367,062.

More homes on Grand Ave

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Assigned schools

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