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Single Family ResidenceResidential
$843,343$404 / 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 90How 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

3921 SW ALTADENA AVE

PORTLAND, OR 97239
3
Beds
3
Baths
2,088 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.
0.22 ac
Lot SizeThe size of the land the home sits on, from county records.
1960
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$843K
$758K low$929K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,565 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$432,640 (2024)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$432,640
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$814,090

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMultnomah
Lot (acres)The size of the land the home sits on, from county records.0.22
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Forced Air
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, Built-in
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 · 240 ft²

Transaction History(7)

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
Robert Gray Middle SchoolA-
Middle · Grades 6–8 · 1.0 mi
E
Rieke Elementary SchoolA+
Elementary · Grades KG–5 · 1.5 mi
H
Ida B. Wells High SchoolA-
High · Grades 9–12 · 1.5 mi

District: Portland School District 1j

Neighborhood · ZIP 97239These 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.121
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 100.188

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.38%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.1%
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.17,689
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,736 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$111,852
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$140,292
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.45 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

3921 Sw Altadena 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 90% of homes in Multnomah County
  • Costs more per square foot than 75% of homes in Portland 97239
  • Smaller than 74% of homes in Southwest Hills Residential League
  • Has a bigger lot than 78% of homes in Multnomah County

What homes are worth in Portland 97239

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

This home
$242K$1.5M

This home is worth more than 73% of homes in Portland 97239.

How it measures up in Portland 97239

The dot is this home. The mark in the middle is the typical home in Portland 97239.

Estimated value$843,343
CheaperTypical $640,205Pricier

Pricier than 73% of homes nearby

Price per ft²$404
CheaperTypical $344Pricier

Pricier than 75% of homes nearby

Living area2,088 ft²
SmallerTypical 1,872 ft²Bigger

Bigger than 59% of homes nearby

Lot size0.22 ac
SmallerTypical 0.18 acBigger

Bigger than 60% of homes nearby

Year built1960
OlderTypical 1972Newer

Newer than 41% of homes nearby

How 3921 Sw Altadena Ave ranks against every home in each area.
MeasureThis homeSouthwest Hills Residential LeaguePortland 97239Multnomah County
Estimated valuepricier than$843,34330% of homes73% of homes90% of homes
Price per ft²pricier than$40467% of homes75% of homes75% of homes
Living areabigger than2,088 ft²26% of homes59% of homes74% of homes
Lot sizebigger than0.22 ac46% of homes60% of homes78% of homes
Year builtnewer than196060% of homes41% of homes51% of homes

About 3921 Sw Altadena Ave

How much is 3921 Sw Altadena Ave, Portland, OR worth?

The TopHap Estimate for 3921 Sw Altadena Ave, Portland, OR is $843,343 as of Sep 24, 2026. The likely range is $757,774 to $928,912. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3921 Sw Altadena Ave, Portland, OR last sell?

3921 Sw Altadena Ave, Portland, OR last sold on Aug 16, 2021, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 3921 Sw Altadena Ave, Portland, OR?

3921 Sw Altadena Ave, Portland, OR has 3 bedrooms, 3 bathrooms, 2,088 square feet of living space and a 0.22-acre lot.

When was 3921 Sw Altadena Ave, Portland, OR built?

3921 Sw Altadena Ave, Portland, OR was built in 1960, making it 66 years old. The building has 1 story.

What schools serve 3921 Sw Altadena Ave, Portland, OR?

3921 Sw Altadena Ave, Portland, OR is assigned to Robert Gray Middle School (middle), rated A-; Rieke Elementary School (elementary), rated A+; Ida B. Wells High School (high), rated A-. All sit in Portland School District 1j. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3921 Sw Altadena Ave, Portland, OR compare to other homes in Portland 97239?

Among the 5,610 homes in Portland 97239, it is worth more than 73% of them ($843,343 against a typical $640,205), its price per square foot is higher than 75% of them ($404 against a typical $344), it is bigger than 59% of them (2,088 ft² against a typical 1,872 ft²), its lot is bigger than 60% of them (0.22 ac against a typical 0.18 ac) and it is newer than 41% of them (1960 against a typical 1972). Measured against all of Multnomah County, it is worth more than 90% 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 3921 Sw Altadena Ave, Portland, OR?

The 2024 property tax bill for 3921 Sw Altadena Ave, Portland, OR was $11,565. The county assessed it at $432,640.

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