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Single Family ResidenceResidential
$1,005,795$353 / 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 Oct 21, 2026
Last sold for $975,000 on Jun 27, 2025

3231 DUNCAN DR

LAKE OSWEGO, OR 97035
4
Beds
2.5
Baths
2,852 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.
0.24 ac
Lot SizeThe size of the land the home sits on, from county records.
1986
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1M
$947K low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$975,000 · Jun 27, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,457 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$541,322 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$525,556
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$933,213

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
52
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
16
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
40
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.
2
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.16 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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
CountyCLACKAMAS
Lot (acres)The size of the land the home sits on, from county records.0.24
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.Wood Shingle
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

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
Lake Oswego Middle SchoolA+
Middle · Grades 6–8 · 0.4 mi
H
Lake Oswego High SchoolA
High · Grades 9–12 · 0.5 mi
E
Oak Creek Elementary SchoolA+
Elementary · Grades KG–5 · 0.9 mi

District: Lake Oswego School District

Neighborhood · ZIP 97035These 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.80
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.107
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.189

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.94%
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.3.4%
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.25,687
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,162 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$124,741
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$163,301
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

3231 Duncan Dr 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 95% of homes in Mountain Park
  • Costs more per square foot than 84% of homes in Mountain Park
  • Bigger than 80% of homes in Mountain Park
  • Newer than 85% of homes in Mountain Park

What homes are worth in Lake Oswego 97035

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

This home
$222K$2.2M

This home is worth more than 77% of homes in Lake Oswego 97035.

How it measures up in Lake Oswego 97035

The dot is this home. The mark in the middle is the typical home in Lake Oswego 97035.

Estimated value$1,005,795
CheaperTypical $743,375Pricier

Pricier than 77% of homes nearby

Price per ft²$353
CheaperTypical $352Pricier

Pricier than 51% of homes nearby

Living area2,852 ft²
SmallerTypical 2,098 ft²Bigger

Bigger than 73% of homes nearby

Lot size0.24 ac
SmallerTypical 0.22 acBigger

Bigger than 62% of homes nearby

Year built1986
OlderTypical 1980Newer

Newer than 63% of homes nearby

How 3231 Duncan Dr ranks against every home in each area.
MeasureThis homeMountain ParkLake Oswego 97035Clackamas County
Estimated valuepricier than$1,005,79595% of homes77% of homes87% of homes
Price per ft²pricier than$35384% of homes51% of homes69% of homes
Living areabigger than2,852 ft²80% of homes73% of homes79% of homes
Lot sizebigger than0.24 ac60% of homes62% of homes51% of homes
Year builtnewer than198685% of homes63% of homes54% of homes

About 3231 Duncan Dr

How much is 3231 Duncan Dr, Lake Oswego, OR worth?

The TopHap Estimate for 3231 Duncan Dr, Lake Oswego, OR is $1,005,795 as of Oct 21, 2026. The likely range is $947,212 to $1,064,378. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3231 Duncan Dr, Lake Oswego, OR last sell?

3231 Duncan Dr, Lake Oswego, OR last sold on Jun 27, 2025 for $975,000, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 3231 Duncan Dr, Lake Oswego, OR?

3231 Duncan Dr, Lake Oswego, OR has 4 bedrooms, 2.5 bathrooms, 2,852 square feet of living space and a 0.24-acre lot.

When was 3231 Duncan Dr, Lake Oswego, OR built?

3231 Duncan Dr, Lake Oswego, OR was built in 1986, making it 40 years old. The building has 2 stories.

What schools serve 3231 Duncan Dr, Lake Oswego, OR?

3231 Duncan Dr, Lake Oswego, OR is assigned to Lake Oswego Middle School (middle), rated A+; Lake Oswego High School (high), rated A; Oak Creek Elementary School (elementary), rated A+. All sit in Lake Oswego School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3231 Duncan Dr, Lake Oswego, OR compare to other homes in Lake Oswego 97035?

Among the 9,049 homes in Lake Oswego 97035, it is worth more than 77% of them ($1,005,795 against a typical $743,375), its price per square foot is higher than 51% of them ($353 against a typical $352), it is bigger than 73% of them (2,852 ft² against a typical 2,098 ft²), its lot is bigger than 62% of them (0.24 ac against a typical 0.22 ac) and it is newer than 63% of them (1986 against a typical 1980). Measured against all of Clackamas County, it is worth more than 87% 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 3231 Duncan Dr, Lake Oswego, OR?

The 2026 property tax bill for 3231 Duncan Dr, Lake Oswego, OR was $10,457. The county assessed it at $541,322.

More homes on Duncan Dr

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Assigned schools

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