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Single Family ResidenceResidential
$258,787$188 / 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 89How 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

599 COSTLEY LN

ASOTIN, WA 99402
0
Baths
1,376 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.
1.9 ac
Lot SizeThe size of the land the home sits on, from county records.
1890
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$259K
$230K low$288K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,571 (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.$245,600 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$85,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$160,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$245,600

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
99
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
80
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
5
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.197 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.34%
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.minimal

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
CountyAsotin
Lot (acres)The size of the land the home sits on, from county records.1.90
HeatingThe type of heating system in the home.None

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

M
Asotin Jr Sr High SchoolB
Middle · Grades 6–12 · 0.5 mi
E
Asotin Elementary SchoolC
Elementary · Grades PK–5 · 0.6 mi

District: Asotin-Anatone School District

Neighborhood · ZIP 99402These 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.129
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.115
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.60

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.82%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.859
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$80,231
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$113,387
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.17 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

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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

599 Costley Ln 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 77% of homes in Asotin 99402
  • Costs less per square foot than 85% of homes in Asotin County
  • Has a bigger lot than 88% of homes in Asotin County
  • Among the oldest homes in Asotin 99402

What homes are worth in Asotin 99402

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

This home
$137K$815K

This home is worth more than 23% of homes in Asotin 99402.

How it measures up in Asotin 99402

The dot is this home. The mark in the middle is the typical home in Asotin 99402.

Estimated value$258,787
CheaperTypical $338,531Pricier

Pricier than 23% of homes nearby

Price per ft²$188
CheaperTypical $237Pricier

Pricier than 20% of homes nearby

Living area1,376 ft²
SmallerTypical 1,412 ft²Bigger

Bigger than 46% of homes nearby

Lot size1.9 ac
SmallerTypical 0.49 acBigger

Bigger than 70% of homes nearby

Year built1890
OlderTypical 1980Newer

Older than almost all homes nearby

How 599 Costley Ln ranks against every home in each area.
MeasureThis homeAsotin 99402Asotin County
Estimated valuepricier than$258,78723% of homes37% of homes
Price per ft²pricier than$18820% of homes15% of homes
Living areabigger than1,376 ft²46% of homes61% of homes
Lot sizebigger than1.9 ac70% of homes88% of homes
Year builtnewer than1890almost no homesalmost no homes

About 599 Costley Ln

How much is 599 Costley Ln, Asotin, WA worth?

The TopHap Estimate for 599 Costley Ln, Asotin, WA is $258,787 as of Aug 30, 2026. The likely range is $229,509 to $288,065. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 599 Costley Ln, Asotin, WA?

599 Costley Ln, Asotin, WA has 1,376 square feet of living space and a 1.90-acre lot.

When was 599 Costley Ln, Asotin, WA built?

599 Costley Ln, Asotin, WA was built in 1890, making it 136 years old. The building has 2 stories.

What schools serve 599 Costley Ln, Asotin, WA?

599 Costley Ln, Asotin, WA is assigned to Asotin Jr Sr High School (middle), rated B; Asotin Elementary School (elementary), rated C. All sit in Asotin-Anatone School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 599 Costley Ln, Asotin, WA compare to other homes in Asotin 99402?

Among the 828 homes in Asotin 99402, it is worth more than 23% of them ($258,787 against a typical $338,531), its price per square foot is higher than 20% of them ($188 against a typical $237), it is bigger than 46% of them (1,376 ft² against a typical 1,412 ft²), its lot is bigger than 70% of them (1.9 ac against a typical 0.49 ac) and it is newer than almost none of them (1890 against a typical 1980). Measured against all of Asotin County, it is worth more than 37% 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 599 Costley Ln, Asotin, WA?

The 2025 property tax bill for 599 Costley Ln, Asotin, WA was $2,571. The county assessed it at $245,600.

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