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Single Family ResidenceResidential
$412,388$409 / 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 95How 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 $344,000 on Feb 20, 2020

20380 SW TAMMY CT

BEAVERTON, OR 97078
3
Beds
1
Baths
1,008 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1970
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

$412K
$391K low$434K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$344,000 · Feb 20, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,096 (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.$207,380 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$201,340
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$425,560

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.38
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
19
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.
93
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
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.2005
Lot (acres)The size of the land the home sits on, from county records.0.17
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.Yes
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.DeckPatio · 208 ft²

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
Butternut Creek Elementary SchoolB
Elementary · Grades KG–6 · 0.3 mi
M
R. A. Brown Middle SchoolC+
Middle · Grades 7–8 · 1.5 mi
H
Century High SchoolA
High · Grades 9–12 · 1.6 mi

District: Hillsboro School District 1j

Neighborhood · ZIP 97078These 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.84
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.106
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.184

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.12%
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.27,026
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,082 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$83,144
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$107,401
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.41 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.48%

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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

20380 Sw Tammy Ct 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 84% of homes in Washington County
  • Costs more per square foot than 94% of homes in Cooper Mountain - Aloha North
  • Smaller than 94% of homes in Cooper Mountain - Aloha North
  • Older than 85% of homes in Cooper Mountain - Aloha North

What homes are worth in Beaverton 97078

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

This home
$290K$691K

This home is worth more than 18% of homes in Beaverton 97078.

How it measures up in Beaverton 97078

The dot is this home. The mark in the middle is the typical home in Beaverton 97078.

Estimated value$412,388
CheaperTypical $483,375Pricier

Pricier than 18% of homes nearby

Price per ft²$409
CheaperTypical $312Pricier

Pricier than 92% of homes nearby

Living area1,008 ft²
SmallerTypical 1,528 ft²Bigger

Bigger than 8% of homes nearby

Lot size0.17 ac
SmallerTypical 0.18 acBigger

Bigger than 43% of homes nearby

Year built1970
OlderTypical 1977Newer

Newer than 23% of homes nearby

How 20380 Sw Tammy Ct ranks against every home in each area.
MeasureThis homeCooper Mountain - Aloha NorthBeaverton 97078Washington County
Estimated valuepricier than$412,38820% of homes18% of homes16% of homes
Price per ft²pricier than$40994% of homes92% of homes94% of homes
Living areabigger than1,008 ft²6% of homes8% of homes7% of homes
Lot sizebigger than0.17 ac57% of homes43% of homes50% of homes
Year builtnewer than197015% of homes23% of homes18% of homes

About 20380 Sw Tammy Ct

How much is 20380 Sw Tammy Ct, Beaverton, OR worth?

The TopHap Estimate for 20380 Sw Tammy Ct, Beaverton, OR is $412,388 as of Sep 24, 2026. The likely range is $390,770 to $434,006. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20380 Sw Tammy Ct, Beaverton, OR last sell?

20380 Sw Tammy Ct, Beaverton, OR last sold on Feb 20, 2020 for $344,000, according to the county's recorded deed.

How big is 20380 Sw Tammy Ct, Beaverton, OR?

20380 Sw Tammy Ct, Beaverton, OR has 3 bedrooms, 1 bathrooms, 1,008 square feet of living space and a 0.17-acre lot.

When was 20380 Sw Tammy Ct, Beaverton, OR built?

20380 Sw Tammy Ct, Beaverton, OR was built in 1970, making it 56 years old.

What schools serve 20380 Sw Tammy Ct, Beaverton, OR?

20380 Sw Tammy Ct, Beaverton, OR is assigned to Butternut Creek Elementary School (elementary), rated B; R. A. Brown Middle School (middle), rated C+; 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 20380 Sw Tammy Ct, Beaverton, OR compare to other homes in Beaverton 97078?

Among the 6,586 homes in Beaverton 97078, it is worth more than 18% of them ($412,388 against a typical $483,375), its price per square foot is higher than 92% of them ($409 against a typical $312), it is bigger than 8% of them (1,008 ft² against a typical 1,528 ft²), its lot is bigger than 43% of them (0.17 ac against a typical 0.18 ac) and it is newer than 23% of them (1970 against a typical 1977). Measured against all of Washington County, it is worth more than 16% 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 20380 Sw Tammy Ct, Beaverton, OR?

The 2025 property tax bill for 20380 Sw Tammy Ct, Beaverton, OR was $3,096. The county assessed it at $207,380.

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