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Single Family ResidenceResidential
$520,573$410 / 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 91How 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 $295,000 on Jun 5, 2020

340 AVENUE U

SEASIDE, OR 97138
4
Beds
2
Baths
1,271 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1927
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$521K
$474K low$568K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$295,000 · Jun 5, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,437 (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.$342,622 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$342,622
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$232,199
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$576,154

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.36
25
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
4
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
31
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
100
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
21
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.7 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.0.2 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
CountyClatsop
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.1953
Lot (acres)The size of the land the home sits on, from county records.0.11
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
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.Patio · 521 ft²

Transaction History(3)

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
Seaside Heights Elementary SchoolB+
Elementary · Grades KG–5 · 1.2 mi
H
Seaside High SchoolD-
High · Grades 9–12 · 1.5 mi
M
Broadway Middle SchoolB
Middle · Grades 6–8 · 1.5 mi

District: Seaside School District 10

Neighborhood · ZIP 97138These 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.136
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.298

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.67%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.11,382
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.33 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$63,096
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$85,187
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.135 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

340 Avenue U 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 66% of homes in Cartwright Park
  • Costs more per square foot than 70% of homes in Clatsop County
  • Smaller than 65% of homes in Clatsop County
  • Has a smaller lot than 75% of homes in Clatsop County
  • Older than 86% of homes in Seaside 97138

What homes are worth in Seaside 97138

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

This home
$196K$1.7M

This home is worth more than 53% of homes in Seaside 97138.

How it measures up in Seaside 97138

The dot is this home. The mark in the middle is the typical home in Seaside 97138.

Estimated value$520,573
CheaperTypical $502,341Pricier

Pricier than 53% of homes nearby

Price per ft²$410
CheaperTypical $369Pricier

Pricier than 64% of homes nearby

Living area1,271 ft²
SmallerTypical 1,400 ft²Bigger

Bigger than 43% of homes nearby

Lot size0.11 ac
SmallerTypical 0.22 acBigger

Bigger than 32% of homes nearby

Year built1927
OlderTypical 1976Newer

Newer than 14% of homes nearby

How 340 Avenue U ranks against every home in each area.
MeasureThis homeCartwright ParkSeaside 97138Clatsop County
Estimated valuepricier than$520,57366% of homes53% of homes53% of homes
Price per ft²pricier than$41045% of homes64% of homes70% of homes
Living areabigger than1,271 ft²60% of homes43% of homes35% of homes
Lot sizebigger than0.11 ac66% of homes32% of homes25% of homes
Year builtnewer than192722% of homes14% of homes17% of homes

About 340 Avenue U

How much is 340 Avenue U, Seaside, OR worth?

The TopHap Estimate for 340 Avenue U, Seaside, OR is $520,573 as of Aug 30, 2026. The likely range is $473,611 to $567,535. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 340 Avenue U, Seaside, OR last sell?

340 Avenue U, Seaside, OR last sold on Jun 5, 2020 for $295,000, according to the county's recorded deed.

How big is 340 Avenue U, Seaside, OR?

340 Avenue U, Seaside, OR has 4 bedrooms, 2 bathrooms, 1,271 square feet of living space and a 0.11-acre lot.

When was 340 Avenue U, Seaside, OR built?

340 Avenue U, Seaside, OR was built in 1927, making it 99 years old. The building has 2 stories.

What schools serve 340 Avenue U, Seaside, OR?

340 Avenue U, Seaside, OR is assigned to Seaside Heights Elementary School (elementary), rated B+; Seaside High School (high), rated D-; Broadway Middle School (middle), rated B. All sit in Seaside School District 10. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 340 Avenue U, Seaside, OR compare to other homes in Seaside 97138?

Among the 7,421 homes in Seaside 97138, it is worth more than 53% of them ($520,573 against a typical $502,341), its price per square foot is higher than 64% of them ($410 against a typical $369), it is bigger than 43% of them (1,271 ft² against a typical 1,400 ft²), its lot is bigger than 32% of them (0.11 ac against a typical 0.22 ac) and it is newer than 14% of them (1927 against a typical 1976). Measured against all of Clatsop County, it is worth more than 53% 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 340 Avenue U, Seaside, OR?

The 2025 property tax bill for 340 Avenue U, Seaside, OR was $3,437. The county assessed it at $342,622.

More homes on Avenue U

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