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Single Family ResidenceResidential
$645,285$297 / 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

21794 SW MARTINAZZI AVE

TUALATIN, OR 97062
4
Beds
3
Baths
2,172 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.
0.18 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

$645K
$609K low$681K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,728 (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.$315,190 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$306,020
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$605,520

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.
18
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.1995
Lot (acres)The size of the land the home sits on, from county records.0.18
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.Deck · 200 ft²Patio · 56 ft²Porch · 60 ft²

Transaction History(1)

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 · 0.2 mi
H
Tualatin High SchoolC-
High · Grades 9–12 · 0.3 mi
M
Hazelbrook Middle SchoolC
Middle · Grades 6–8 · 2.4 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

21794 Sw Martinazzi Ave 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 70% of homes in Washington County
  • Bigger than 67% of homes in Washington County
  • Has a bigger lot than 73% of homes in Byrom
  • Older than 91% of homes in Byrom

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
$268K$1.8M

This home is worth more than 55% 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$645,285
CheaperTypical $621,874Pricier

Pricier than 55% of homes nearby

Price per ft²$297
CheaperTypical $293Pricier

Pricier than 53% of homes nearby

Living area2,172 ft²
SmallerTypical 2,064 ft²Bigger

Bigger than 53% of homes nearby

Lot size0.18 ac
SmallerTypical 0.18 acBigger

Bigger than 57% of homes nearby

Year built1979
OlderTypical 1990Newer

Newer than 26% of homes nearby

How 21794 Sw Martinazzi Ave ranks against every home in each area.
MeasureThis homeByromTualatin 97062Washington County
Estimated valuepricier than$645,28566% of homes55% of homes70% of homes
Price per ft²pricier than$29747% of homes53% of homes48% of homes
Living areabigger than2,172 ft²63% of homes53% of homes67% of homes
Lot sizebigger than0.18 ac73% of homes57% of homes62% of homes
Year builtnewer than19799% of homes26% of homes35% of homes

About 21794 Sw Martinazzi Ave

How much is 21794 Sw Martinazzi Ave, Tualatin, OR worth?

The TopHap Estimate for 21794 Sw Martinazzi Ave, Tualatin, OR is $645,285 as of Sep 24, 2026. The likely range is $609,271 to $681,299. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21794 Sw Martinazzi Ave, Tualatin, OR last sell?

21794 Sw Martinazzi Ave, Tualatin, OR last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21794 Sw Martinazzi Ave, Tualatin, OR?

21794 Sw Martinazzi Ave, Tualatin, OR has 4 bedrooms, 3 bathrooms, 2,172 square feet of living space and a 0.18-acre lot.

When was 21794 Sw Martinazzi Ave, Tualatin, OR built?

21794 Sw Martinazzi Ave, Tualatin, OR was built in 1979, making it 47 years old.

What schools serve 21794 Sw Martinazzi Ave, Tualatin, OR?

21794 Sw Martinazzi Ave, 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 21794 Sw Martinazzi Ave, Tualatin, OR compare to other homes in Tualatin 97062?

Among the 7,845 homes in Tualatin 97062, it is worth more than 55% of them ($645,285 against a typical $621,874), its price per square foot is higher than 53% of them ($297 against a typical $293), it is bigger than 53% of them (2,172 ft² against a typical 2,064 ft²), its lot is bigger than 57% of them (0.18 ac against a typical 0.18 ac) and it is newer than 26% of them (1979 against a typical 1990). Measured against all of Washington County, it is worth more than 70% 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 21794 Sw Martinazzi Ave, Tualatin, OR?

The 2025 property tax bill for 21794 Sw Martinazzi Ave, Tualatin, OR was $5,728. The county assessed it at $315,190.

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