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Single Family ResidenceResidential
$467,953$398 / 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 Aug 30, 2026
Last sold for $345,000 on Dec 18, 2018

21840 SW LOIS ST

BEAVERTON, OR 97003
3
Beds
2
Baths
1,177 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.
0.1 ac
Lot SizeThe size of the land the home sits on, from county records.
2003
Year BuiltThe year the home was originally built, according to county records.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$468K
$454K low$481K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$345,000 · Dec 18, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,580 (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.$241,530 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$234,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$488,800

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.39
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
26
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
39
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
92
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
38
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
CountyWASHINGTON
Lot (acres)The size of the land the home sits on, from county records.0.10
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.Composition Shingle
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 200 ft²

Transaction History(3)

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
R. A. Brown Middle SchoolC+
Middle · Grades 7–8 · 0.2 mi
E
Indian Hills Elementary SchoolB-
Elementary · Grades PK–6 · 0.5 mi
H
Century High SchoolA
High · Grades 9–12 · 0.9 mi

District: Hillsboro School District 1j

Neighborhood · ZIP 97003These 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.89
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 100.190

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.21%
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.1.3%
PopulationHow many people live in this area.29,155
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.6,150 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$89,086
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$109,447
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.40 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.48%

Owner Tools

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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

21840 Sw Lois 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.

  • Worth less than 73% of homes in Washington County
  • Costs more per square foot than 93% of homes in Beaverton 97003
  • Smaller than 87% of homes in Cooper Mountain - Aloha North
  • Has a smaller lot than 75% of homes in Washington County
  • Newer than 80% of homes in Beaverton 97003

What homes are worth in Beaverton 97003

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

This home
$260K$670K

This home is worth more than 51% of homes in Beaverton 97003.

How it measures up in Beaverton 97003

The dot is this home. The mark in the middle is the typical home in Beaverton 97003.

Estimated value$467,953
CheaperTypical $465,038Pricier

Pricier than 51% of homes nearby

Price per ft²$398
CheaperTypical $303Pricier

Pricier than 93% of homes nearby

Living area1,177 ft²
SmallerTypical 1,488 ft²Bigger

Bigger than 14% of homes nearby

Lot size0.1 ac
SmallerTypical 0.14 acBigger

Bigger than 33% of homes nearby

Year built2003
OlderTypical 1990Newer

Newer than 80% of homes nearby

How 21840 Sw Lois St ranks against every home in each area.
MeasureThis homeCooper Mountain - Aloha NorthBeaverton 97003Washington County
Estimated valuepricier than$467,95344% of homes51% of homes27% of homes
Price per ft²pricier than$39891% of homes93% of homes91% of homes
Living areabigger than1,177 ft²13% of homes14% of homes13% of homes
Lot sizebigger than0.1 ac36% of homes33% of homes25% of homes
Year builtnewer than200372% of homes80% of homes75% of homes

About 21840 Sw Lois St

How much is 21840 Sw Lois St, Beaverton, OR worth?

The TopHap Estimate for 21840 Sw Lois St, Beaverton, OR is $467,953 as of Aug 30, 2026. The likely range is $454,446 to $481,460. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21840 Sw Lois St, Beaverton, OR last sell?

21840 Sw Lois St, Beaverton, OR last sold on Dec 18, 2018 for $345,000, according to the county's recorded deed.

How big is 21840 Sw Lois St, Beaverton, OR?

21840 Sw Lois St, Beaverton, OR has 3 bedrooms, 2 bathrooms, 1,177 square feet of living space and a 0.10-acre lot.

When was 21840 Sw Lois St, Beaverton, OR built?

21840 Sw Lois St, Beaverton, OR was built in 2003, making it 23 years old.

What schools serve 21840 Sw Lois St, Beaverton, OR?

21840 Sw Lois St, Beaverton, OR is assigned to R. A. Brown Middle School (middle), rated C+; Indian Hills Elementary School (elementary), rated B-; Century High School (high), rated A. All sit in Hillsboro School District 1j. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21840 Sw Lois St, Beaverton, OR compare to other homes in Beaverton 97003?

Among the 7,823 homes in Beaverton 97003, it is worth more than 51% of them ($467,953 against a typical $465,038), its price per square foot is higher than 93% of them ($398 against a typical $303), it is bigger than 14% of them (1,177 ft² against a typical 1,488 ft²), its lot is bigger than 33% of them (0.1 ac against a typical 0.14 ac) and it is newer than 80% of them (2003 against a typical 1990). Measured against all of Washington County, it is worth more than 27% 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 21840 Sw Lois St, Beaverton, OR?

The 2025 property tax bill for 21840 Sw Lois St, Beaverton, OR was $3,580. The county assessed it at $241,530.

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