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Single Family ResidenceResidential
$522,612$332 / 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 Aug 30, 2026
Last sold for $401,865 on Jul 18, 2019

4100 SW 91ST AVE

PORTLAND, OR 97225
3
Beds
2
Baths
1,576 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.
1946
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

$523K
$498K low$548K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$401,865 · Jul 18, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,170 (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.$225,140 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$218,590
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$498,560

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.47
35
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
33
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
38
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
95
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.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.6 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.1 percent flood zone

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.1960
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)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Baseboard
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.Shed · 40 ft²Patio · 180 ft²

Transaction History(5)

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
Raleigh Park Elementary SchoolC+
Elementary · Grades KG–5 · 0.7 mi
M
Whitford Middle SchoolC
Middle · Grades 6–8 · 2.0 mi
H
Beaverton High SchoolB+
High · Grades 9–12 · 2.0 mi

District: Beaverton School District 48j

Neighborhood · ZIP 97225These 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.101
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.4%
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.26,962
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,106 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$113,884
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$144,714
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.43 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

4100 Sw 91st 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 less than 86% of homes in Portland 97225
  • Costs more per square foot than 69% of homes in Washington County
  • Smaller than 76% of homes in Portland 97225
  • Has a bigger lot than 88% of homes in Washington County
  • Older than 96% of homes in Washington County

What homes are worth in Portland 97225

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

This home
$207K$1.6M

This home is worth more than 14% of homes in Portland 97225.

How it measures up in Portland 97225

The dot is this home. The mark in the middle is the typical home in Portland 97225.

Estimated value$522,612
CheaperTypical $753,246Pricier

Pricier than 14% of homes nearby

Price per ft²$332
CheaperTypical $337Pricier

Pricier than 47% of homes nearby

Living area1,576 ft²
SmallerTypical 2,278 ft²Bigger

Bigger than 24% of homes nearby

Lot size0.33 ac
SmallerTypical 0.24 acBigger

Bigger than 72% of homes nearby

Year built1946
OlderTypical 1962Newer

Newer than 9% of homes nearby

How 4100 Sw 91st Ave ranks against every home in each area.
MeasureThis homePortland 97225Washington County
Estimated valuepricier than$522,61214% of homes41% of homes
Price per ft²pricier than$33247% of homes69% of homes
Living areabigger than1,576 ft²24% of homes38% of homes
Lot sizebigger than0.33 ac72% of homes88% of homes
Year builtnewer than19469% of homes4% of homes

About 4100 Sw 91st Ave

How much is 4100 Sw 91st Ave, Portland, OR worth?

The TopHap Estimate for 4100 Sw 91st Ave, Portland, OR is $522,612 as of Aug 30, 2026. The likely range is $497,534 to $547,690. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4100 Sw 91st Ave, Portland, OR last sell?

4100 Sw 91st Ave, Portland, OR last sold on Jul 18, 2019 for $401,865, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 4100 Sw 91st Ave, Portland, OR?

4100 Sw 91st Ave, Portland, OR has 3 bedrooms, 2 bathrooms, 1,576 square feet of living space and a 0.33-acre lot.

When was 4100 Sw 91st Ave, Portland, OR built?

4100 Sw 91st Ave, Portland, OR was built in 1946, making it 80 years old.

What schools serve 4100 Sw 91st Ave, Portland, OR?

4100 Sw 91st Ave, Portland, OR is assigned to Raleigh Park Elementary School (elementary), rated C+; Whitford Middle School (middle), rated C; Beaverton High School (high), rated B+. All sit in Beaverton School District 48j. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4100 Sw 91st Ave, Portland, OR compare to other homes in Portland 97225?

Among the 7,778 homes in Portland 97225, it is worth more than 14% of them ($522,612 against a typical $753,246), its price per square foot is higher than 47% of them ($332 against a typical $337), it is bigger than 24% of them (1,576 ft² against a typical 2,278 ft²), its lot is bigger than 72% of them (0.33 ac against a typical 0.24 ac) and it is newer than 9% of them (1946 against a typical 1962). Measured against all of Washington County, it is worth more than 41% 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 4100 Sw 91st Ave, Portland, OR?

The 2025 property tax bill for 4100 Sw 91st Ave, Portland, OR was $4,170. The county assessed it at $225,140.

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