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Single Family ResidenceResidential
$685,620$237 / 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 Aug 30, 2026
Last sold for $209,500 on Jul 31, 1995

3977 SW 99TH AVE

PORTLAND, OR 97225
4
Beds
2
Baths
2,895 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.
0.29 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
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

$686K
$616K low$755K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$209,500 · Jul 31, 1995

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,312 (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.$344,040 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$334,020
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$634,510

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.41
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
34
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.

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.1970
Lot (acres)The size of the land the home sits on, from county records.0.29
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, Detached
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 · 513 ft²Patio · 513 ft²Porch · 32 ft²

Transaction History(2)

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 · 1.1 mi
H
Beaverton High SchoolB+
High · Grades 9–12 · 1.6 mi
M
Whitford Middle SchoolC
Middle · Grades 6–8 · 1.9 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

3977 Sw 99th 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 75% of homes in Washington County
  • Costs less per square foot than 96% of homes in Portland 97225
  • Bigger than 86% of homes in Washington County
  • Has a bigger lot than 84% of homes in Washington County
  • Older than 94% 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
$209K$1.6M

This home is worth more than 39% 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$685,620
CheaperTypical $756,196Pricier

Pricier than 39% of homes nearby

Price per ft²$237
CheaperTypical $337Pricier

Pricier than 4% of homes nearby

Living area2,895 ft²
SmallerTypical 2,296 ft²Bigger

Bigger than 71% of homes nearby

Lot size0.29 ac
SmallerTypical 0.24 acBigger

Bigger than 62% of homes nearby

Year built1950
OlderTypical 1962Newer

Newer than 17% of homes nearby

How 3977 Sw 99th Ave ranks against every home in each area.
MeasureThis homePortland 97225Washington County
Estimated valuepricier than$685,62039% of homes75% of homes
Price per ft²pricier than$2374% of homes8% of homes
Living areabigger than2,895 ft²71% of homes86% of homes
Lot sizebigger than0.29 ac62% of homes84% of homes
Year builtnewer than195017% of homes6% of homes

About 3977 Sw 99th Ave

How much is 3977 Sw 99th Ave, Portland, OR worth?

The TopHap Estimate for 3977 Sw 99th Ave, Portland, OR is $685,620 as of Aug 30, 2026. The likely range is $616,329 to $754,911. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3977 Sw 99th Ave, Portland, OR last sell?

3977 Sw 99th Ave, Portland, OR last sold on Jul 31, 1995 for $209,500, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 3977 Sw 99th Ave, Portland, OR?

3977 Sw 99th Ave, Portland, OR has 4 bedrooms, 2 bathrooms, 2,895 square feet of living space and a 0.29-acre lot.

When was 3977 Sw 99th Ave, Portland, OR built?

3977 Sw 99th Ave, Portland, OR was built in 1950, making it 76 years old.

What schools serve 3977 Sw 99th Ave, Portland, OR?

3977 Sw 99th Ave, Portland, OR is assigned to Raleigh Park Elementary School (elementary), rated C+; Beaverton High School (high), rated B+; Whitford Middle School (middle), rated C. All sit in Beaverton School District 48j. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3977 Sw 99th Ave, Portland, OR compare to other homes in Portland 97225?

Among the 7,778 homes in Portland 97225, it is worth more than 39% of them ($685,620 against a typical $756,196), its price per square foot is higher than 4% of them ($237 against a typical $337), it is bigger than 71% of them (2,895 ft² against a typical 2,296 ft²), its lot is bigger than 62% of them (0.29 ac against a typical 0.24 ac) and it is newer than 17% of them (1950 against a typical 1962). Measured against all of Washington County, it is worth more than 75% 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 3977 Sw 99th Ave, Portland, OR?

The 2025 property tax bill for 3977 Sw 99th Ave, Portland, OR was $6,312. The county assessed it at $344,040.

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