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Single Family ResidenceResidential
$435,468$285 / 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 94How 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 $243,000 on Sep 25, 2015

20440 SW MARIMAR ST

BEAVERTON, OR 97078
3
Beds
3
Baths
1,529 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.
3,049 ft²
Lot SizeThe size of the land the home sits on, from county records.
2005
Year BuiltThe year the home was originally built, according to county records.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$435K
$411K low$460K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$243,000 · Sep 25, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,108 (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.$222,110 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$215,650
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$417,370

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.
22
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
Lot (acres)The size of the land the home sits on, from county records.0.07
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
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 · 84 ft²

Transaction History(4)

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
Kinnaman Elementary SchoolD
Elementary · Grades PK–5 · 1.2 mi
H
Aloha High SchoolD-
High · Grades 9–12 · 1.2 mi
M
Mountain View Middle SchoolD-
Middle · Grades 6–8 · 1.6 mi

District: Beaverton School District 48j

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

20440 Sw Marimar 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 80% of homes in Washington County
  • Costs less per square foot than 67% of homes in Beaverton 97078
  • Smaller than 66% of homes in Washington County
  • Has a smaller lot than 87% of homes in Beaverton 97078
  • Newer than 92% of homes in Beaverton 97078

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
$303K$716K

This home is worth more than 26% 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$435,468
CheaperTypical $484,380Pricier

Pricier than 26% of homes nearby

Price per ft²$285
CheaperTypical $313Pricier

Pricier than 33% of homes nearby

Living area1,529 ft²
SmallerTypical 1,536 ft²Bigger

Bigger than 50% of homes nearby

Lot size3,049 ft²
SmallerTypical 0.18 acBigger

Bigger than 13% of homes nearby

Year built2005
OlderTypical 1977Newer

Newer than 92% of homes nearby

How 20440 Sw Marimar St ranks against every home in each area.
MeasureThis homeCooper Mountain - Aloha NorthBeaverton 97078Washington County
Estimated valuepricier than$435,46829% of homes26% of homes20% of homes
Price per ft²pricier than$28539% of homes33% of homes39% of homes
Living areabigger than1,529 ft²48% of homes50% of homes34% of homes
Lot sizebigger than3,049 ft²23% of homes13% of homes14% of homes
Year builtnewer than200578% of homes92% of homes80% of homes

About 20440 Sw Marimar St

How much is 20440 Sw Marimar St, Beaverton, OR worth?

The TopHap Estimate for 20440 Sw Marimar St, Beaverton, OR is $435,468 as of Sep 24, 2026. The likely range is $411,345 to $459,591. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20440 Sw Marimar St, Beaverton, OR last sell?

20440 Sw Marimar St, Beaverton, OR last sold on Sep 25, 2015 for $243,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 20440 Sw Marimar St, Beaverton, OR?

20440 Sw Marimar St, Beaverton, OR has 3 bedrooms, 3 bathrooms, 1,529 square feet of living space and a 0.07-acre lot.

When was 20440 Sw Marimar St, Beaverton, OR built?

20440 Sw Marimar St, Beaverton, OR was built in 2005, making it 21 years old.

What schools serve 20440 Sw Marimar St, Beaverton, OR?

20440 Sw Marimar St, Beaverton, OR is assigned to Kinnaman Elementary School (elementary), rated D; Aloha High School (high), rated D-; Mountain View Middle School (middle), rated D-. All sit in Beaverton School District 48j. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20440 Sw Marimar St, Beaverton, OR compare to other homes in Beaverton 97078?

Among the 6,581 homes in Beaverton 97078, it is worth more than 26% of them ($435,468 against a typical $484,380), its price per square foot is higher than 33% of them ($285 against a typical $313), it is bigger than 50% of them (1,529 ft² against a typical 1,536 ft²), its lot is bigger than 13% of them (3,049 ft² against a typical 0.18 ac) and it is newer than 92% of them (2005 against a typical 1977). Measured against all of Washington County, it is worth more than 20% 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 20440 Sw Marimar St, Beaverton, OR?

The 2025 property tax bill for 20440 Sw Marimar St, Beaverton, OR was $4,108. The county assessed it at $222,110.

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