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Single Family ResidenceResidential
$1,536,117$334 / 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 85How 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 $825,000 on Mar 20, 2018

640 WESTBOROUGH LN

RIVERSIDE, CA 92506
5
Beds
4 / 3
Baths
4,599 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.
0.51 ac
Lot SizeThe size of the land the home sits on, from county records.
2000
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.5M
$1.3M low$1.8M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$825,000 · Mar 20, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,483 (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.$957,476 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$290,143
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$667,333
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$938,703
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,030,140

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyRIVERSIDE
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.2001
Lot (acres)The size of the land the home sits on, from county records.0.51
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.Tile
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

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.

Foreclosure Filings(3)

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

E
George Washington Elementary SchoolD+
Elementary · Grades KG–6 · 1.8 mi
M
Matthew Gage Middle SchoolC
Middle · Grades 7–8 · 1.9 mi
H
Poly High SchoolB
High · Grades 9–12 · 2.3 mi

District: Riverside Unified School District

Neighborhood · ZIP 92506These 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.65
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.350

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.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.4%
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.47,695
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,910 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$109,200
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$137,774
Average tempThe average temperature here across a full year.64°F
Annual precipHow much rain and melted snow falls here in a typical year.11 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.68%

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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

640 Westborough Ln 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 Riverside County
  • Costs less per square foot than 80% of homes in Riverside 92506
  • Among the largest homes in Riverside County
  • Has a bigger lot than 83% of homes in Riverside 92506
  • Newer than 95% of homes in Riverside 92506

What homes are worth in Riverside 92506

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

This home
$429K$1.8M

This home is worth more than 96% of homes in Riverside 92506.

How it measures up in Riverside 92506

The dot is this home. The mark in the middle is the typical home in Riverside 92506.

Estimated value$1,536,117
CheaperTypical $694,609Pricier

Pricier than 96% of homes nearby

Price per ft²$334
CheaperTypical $384Pricier

Pricier than 20% of homes nearby

Living area4,599 ft²
SmallerTypical 1,806 ft²Bigger

Bigger than 96% of homes nearby

Lot size0.51 ac
SmallerTypical 0.24 acBigger

Bigger than 83% of homes nearby

Year built2000
OlderTypical 1965Newer

Newer than 95% of homes nearby

How 640 Westborough Ln ranks against every home in each area.
MeasureThis homeAlessandro HeightsRiverside 92506Riverside County
Estimated valuepricier than$1,536,11778% of homes96% of homes97% of homes
Price per ft²pricier than$33432% of homes20% of homes58% of homes
Living areabigger than4,599 ft²80% of homes96% of homesalmost all homes
Lot sizebigger than0.51 ac20% of homes83% of homes77% of homes
Year builtnewer than200059% of homes95% of homes63% of homes

About 640 Westborough Ln

How much is 640 Westborough Ln, Riverside, CA worth?

The TopHap Estimate for 640 Westborough Ln, Riverside, CA is $1,536,117 as of Sep 24, 2026. The likely range is $1,304,375 to $1,767,859. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 640 Westborough Ln, Riverside, CA last sell?

640 Westborough Ln, Riverside, CA last sold on Mar 20, 2018 for $825,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 640 Westborough Ln, Riverside, CA?

640 Westborough Ln, Riverside, CA has 5 bedrooms, 4 bathrooms, 4,599 square feet of living space and a 0.51-acre lot.

When was 640 Westborough Ln, Riverside, CA built?

640 Westborough Ln, Riverside, CA was built in 2000, making it 26 years old. The building has 2 stories.

What schools serve 640 Westborough Ln, Riverside, CA?

640 Westborough Ln, Riverside, CA is assigned to George Washington Elementary School (elementary), rated D+; Matthew Gage Middle School (middle), rated C; Poly High School (high), rated B. All sit in Riverside Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 640 Westborough Ln, Riverside, CA compare to other homes in Riverside 92506?

Among the 14,868 homes in Riverside 92506, it is worth more than 96% of them ($1,536,117 against a typical $694,609), its price per square foot is higher than 20% of them ($334 against a typical $384), it is bigger than 96% of them (4,599 ft² against a typical 1,806 ft²), its lot is bigger than 83% of them (0.51 ac against a typical 0.24 ac) and it is newer than 95% of them (2000 against a typical 1965). Measured against all of Riverside County, it is worth more than 97% 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 640 Westborough Ln, Riverside, CA?

The 2025 property tax bill for 640 Westborough Ln, Riverside, CA was $10,483. The county assessed it at $957,476.

More homes on Westborough Ln

Closest homes

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Assigned schools

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