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Single Family ResidenceResidential
$612,798$273 / 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 $420,000 on May 31, 2016

20578 SW COLVILLE CT

TUALATIN, OR 97062
4
Beds
3
Baths
2,244 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.
0.33 ac
Lot SizeThe size of the land the home sits on, from county records.
1979
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

$613K
$595K low$631K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$420,000 · May 31, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,835 (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.$321,040 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$311,690
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$621,280

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.
17
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
41
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
96
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.1989
Lot (acres)The size of the land the home sits on, from county records.0.33
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Footing
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.Deck · 96 ft²Patio · 178 ft²Porch · 32 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.

E
Edward Byrom Elementary SchoolA-
Elementary · Grades KG–5 · 0.8 mi
H
Tualatin High SchoolC-
High · Grades 9–12 · 1.0 mi
M
Hazelbrook Middle SchoolC
Middle · Grades 6–8 · 2.1 mi

District: Tigard-Tualatin School District

Neighborhood · ZIP 97062These 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.107
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.183

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.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.29,385
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,046 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$105,053
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$129,327
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.44 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

20578 Sw Colville 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 more than 85% of homes in Martinazzi Woods
  • Costs less per square foot than 84% of homes in Martinazzi Woods
  • Bigger than 89% of homes in Martinazzi Woods
  • Has a bigger lot than 94% of homes in Martinazzi Woods
  • Older than 75% of homes in Tualatin 97062

What homes are worth in Tualatin 97062

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

This home
$262K$1.6M

This home is worth more than 49% of homes in Tualatin 97062.

How it measures up in Tualatin 97062

The dot is this home. The mark in the middle is the typical home in Tualatin 97062.

Estimated value$612,798
CheaperTypical $619,982Pricier

Pricier than 49% of homes nearby

Price per ft²$273
CheaperTypical $294Pricier

Pricier than 30% of homes nearby

Living area2,244 ft²
SmallerTypical 2,070 ft²Bigger

Bigger than 56% of homes nearby

Lot size0.33 ac
SmallerTypical 0.18 acBigger

Bigger than 87% of homes nearby

Year built1979
OlderTypical 1990Newer

Newer than 25% of homes nearby

How 20578 Sw Colville Ct ranks against every home in each area.
MeasureThis homeMartinazzi WoodsTualatin 97062Washington County
Estimated valuepricier than$612,79885% of homes49% of homes63% of homes
Price per ft²pricier than$27316% of homes30% of homes30% of homes
Living areabigger than2,244 ft²89% of homes56% of homes69% of homes
Lot sizebigger than0.33 ac94% of homes87% of homes87% of homes
Year builtnewer than197957% of homes25% of homes35% of homes

About 20578 Sw Colville Ct

How much is 20578 Sw Colville Ct, Tualatin, OR worth?

The TopHap Estimate for 20578 Sw Colville Ct, Tualatin, OR is $612,798 as of Sep 24, 2026. The likely range is $594,661 to $630,935. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20578 Sw Colville Ct, Tualatin, OR last sell?

20578 Sw Colville Ct, Tualatin, OR last sold on May 31, 2016 for $420,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 20578 Sw Colville Ct, Tualatin, OR?

20578 Sw Colville Ct, Tualatin, OR has 4 bedrooms, 3 bathrooms, 2,244 square feet of living space and a 0.33-acre lot.

When was 20578 Sw Colville Ct, Tualatin, OR built?

20578 Sw Colville Ct, Tualatin, OR was built in 1979, making it 47 years old.

What schools serve 20578 Sw Colville Ct, Tualatin, OR?

20578 Sw Colville Ct, Tualatin, OR is assigned to Edward Byrom Elementary School (elementary), rated A-; Tualatin High School (high), rated C-; Hazelbrook Middle School (middle), rated C. All sit in Tigard-Tualatin School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20578 Sw Colville Ct, Tualatin, OR compare to other homes in Tualatin 97062?

Among the 7,845 homes in Tualatin 97062, it is worth more than 49% of them ($612,798 against a typical $619,982), its price per square foot is higher than 30% of them ($273 against a typical $294), it is bigger than 56% of them (2,244 ft² against a typical 2,070 ft²), its lot is bigger than 87% of them (0.33 ac against a typical 0.18 ac) and it is newer than 25% of them (1979 against a typical 1990). Measured against all of Washington County, it is worth more than 63% 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 20578 Sw Colville Ct, Tualatin, OR?

The 2025 property tax bill for 20578 Sw Colville Ct, Tualatin, OR was $5,835. The county assessed it at $321,040.

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