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Single Family ResidenceResidential
$1,240,378$394 / 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 Sep 24, 2026
Last sold for $1,210,000 on Aug 6, 2024

427 SW 366TH ST

FEDERAL WAY, WA 98023
5
Beds
2.8
Baths
3,145 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.
0.41 ac
Lot SizeThe size of the land the home sits on, from county records.
2024
Year BuiltThe year the home was originally built, according to county records.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.2M
$1.2M low$1.3M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,210,000 · Aug 6, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,096 (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.$1,115,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$245,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$870,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,073,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,115,000

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.44
25
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
26
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
44
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.
31
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.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
CountyKING
Lot (acres)The size of the land the home sits on, from county records.0.41
HeatingThe type of heating system in the home.Heat Pump
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.Porch · 300 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.

M
Illahee Middle SchoolC
Middle · Grades 6–8 · 0.4 mi
E
Enterprise Elementary SchoolC+
Elementary · Grades KG–5 · 1.0 mi
H
Todd Beamer High SchoolD+
High · Grades 9–12 · 1.3 mi

District: Federal Way School District

Neighborhood · ZIP 98023These 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.63
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.112
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.255

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.5%
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.52,813
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,507 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$98,962
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$120,405
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.41 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.43%

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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

427 Sw 366th St 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 98% of homes in Federal Way 98023
  • Costs more per square foot than 82% of homes in Federal Way 98023
  • Bigger than 91% of homes in Federal Way 98023
  • Has a bigger lot than 84% of homes in Federal Way 98023
  • Among the newest homes in Federal Way 98023

What homes are worth in Federal Way 98023

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

This home
$252K$1.2M

This home is worth more than 98% of homes in Federal Way 98023.

How it measures up in Federal Way 98023

The dot is this home. The mark in the middle is the typical home in Federal Way 98023.

Estimated value$1,240,378
CheaperTypical $611,266Pricier

Pricier than 98% of homes nearby

Price per ft²$394
CheaperTypical $323Pricier

Pricier than 82% of homes nearby

Living area3,145 ft²
SmallerTypical 1,890 ft²Bigger

Bigger than 91% of homes nearby

Lot size0.41 ac
SmallerTypical 0.2 acBigger

Bigger than 84% of homes nearby

Year built2024
OlderTypical 1979Newer

Newer than almost all homes nearby

How 427 Sw 366th St ranks against every home in each area.
MeasureThis homeFederal Way 98023King County
Estimated valuepricier than$1,240,37898% of homes73% of homes
Price per ft²pricier than$39482% of homes26% of homes
Living areabigger than3,145 ft²91% of homes86% of homes
Lot sizebigger than0.41 ac84% of homes75% of homes
Year builtnewer than2024almost all homesalmost all homes

About 427 Sw 366th St

How much is 427 Sw 366th St, Federal Way, WA worth?

The TopHap Estimate for 427 Sw 366th St, Federal Way, WA is $1,240,378 as of Sep 24, 2026. The likely range is $1,175,899 to $1,304,857. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 427 Sw 366th St, Federal Way, WA last sell?

427 Sw 366th St, Federal Way, WA last sold on Aug 6, 2024 for $1,210,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 427 Sw 366th St, Federal Way, WA?

427 Sw 366th St, Federal Way, WA has 5 bedrooms, 2.8 bathrooms, 3,145 square feet of living space and a 0.41-acre lot.

When was 427 Sw 366th St, Federal Way, WA built?

427 Sw 366th St, Federal Way, WA was built in 2024, making it 2 years old.

What schools serve 427 Sw 366th St, Federal Way, WA?

427 Sw 366th St, Federal Way, WA is assigned to Illahee Middle School (middle), rated C; Enterprise Elementary School (elementary), rated C+; Todd Beamer High School (high), rated D+. All sit in Federal Way School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 427 Sw 366th St, Federal Way, WA compare to other homes in Federal Way 98023?

Among the 13,923 homes in Federal Way 98023, it is worth more than 98% of them ($1,240,378 against a typical $611,266), its price per square foot is higher than 82% of them ($394 against a typical $323), it is bigger than 91% of them (3,145 ft² against a typical 1,890 ft²), its lot is bigger than 84% of them (0.41 ac against a typical 0.2 ac) and it is newer than almost all of them (2024 against a typical 1979). Measured against all of King County, it is worth more than 73% 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 427 Sw 366th St, Federal Way, WA?

The 2026 property tax bill for 427 Sw 366th St, Federal Way, WA was $11,096. The county assessed it at $1,115,000.

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