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Single Family ResidenceResidential
$447,333$426 / 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 93How 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 $105,550 on Aug 21, 1998

1237 S 312TH ST

FEDERAL WAY, WA 98003
2
Beds
1
Baths
1,050 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.
0.22 ac
Lot SizeThe size of the land the home sits on, from county records.
1953
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$447K
$414K low$481K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$105,550 · Aug 21, 1998

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,317 (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.$415,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$165,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$250,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$402,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$415,000

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.0.21
HeatingThe type of heating system in the home.Floor/Wall Furnace
FireplaceWhether the home has a fireplace, and what kind.Yes
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 · 300 ft²Elevator

Transaction History(10)

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.

H
Federal Way High SchoolD
High · Grades 9–12 · 0.4 mi
E
Mirror Lake Elementary SchoolD-
Elementary · Grades KG–5 · 0.4 mi
M
Sacajawea Middle SchoolD-
Middle · Grades 6–8 · 0.8 mi

District: Federal Way School District

Neighborhood · ZIP 98003These 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.111
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.250

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.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.52,110
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,575 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$71,451
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$89,155
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.42 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

1237 S 312th 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 less than 91% of homes in King County
  • Costs more per square foot than 90% of homes in Federal Way 98003
  • Smaller than 85% of homes in King County
  • Older than 98% of homes in Mirror Lake

What homes are worth in Federal Way 98003

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

This home
$197K$1.1M

This home is worth more than 27% of homes in Federal Way 98003.

How it measures up in Federal Way 98003

The dot is this home. The mark in the middle is the typical home in Federal Way 98003.

Estimated value$447,333
CheaperTypical $554,977Pricier

Pricier than 27% of homes nearby

Price per ft²$426
CheaperTypical $325Pricier

Pricier than 90% of homes nearby

Living area1,050 ft²
SmallerTypical 1,600 ft²Bigger

Bigger than 21% of homes nearby

Lot size0.22 ac
SmallerTypical 0.23 acBigger

Bigger than 44% of homes nearby

Year built1953
OlderTypical 1979Newer

Newer than 3% of homes nearby

How 1237 S 312th St ranks against every home in each area.
MeasureThis homeMirror LakeFederal Way 98003King County
Estimated valuepricier than$447,33322% of homes27% of homes9% of homes
Price per ft²pricier than$42677% of homes90% of homes33% of homes
Living areabigger than1,050 ft²26% of homes21% of homes15% of homes
Lot sizebigger than0.22 ac54% of homes44% of homes54% of homes
Year builtnewer than19532% of homes3% of homes23% of homes

About 1237 S 312th St

How much is 1237 S 312th St, Federal Way, WA worth?

The TopHap Estimate for 1237 S 312th St, Federal Way, WA is $447,333 as of Sep 24, 2026. The likely range is $413,999 to $480,667. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1237 S 312th St, Federal Way, WA last sell?

1237 S 312th St, Federal Way, WA last sold on Aug 21, 1998 for $105,550, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 1237 S 312th St, Federal Way, WA?

1237 S 312th St, Federal Way, WA has 2 bedrooms, 1 bathrooms, 1,050 square feet of living space and a 0.21-acre lot.

When was 1237 S 312th St, Federal Way, WA built?

1237 S 312th St, Federal Way, WA was built in 1953, making it 73 years old. The building has 1 story.

What schools serve 1237 S 312th St, Federal Way, WA?

1237 S 312th St, Federal Way, WA is assigned to Federal Way High School (high), rated D; Mirror Lake Elementary School (elementary), rated D-; Sacajawea Middle School (middle), rated D-. All sit in Federal Way School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1237 S 312th St, Federal Way, WA compare to other homes in Federal Way 98003?

Among the 10,429 homes in Federal Way 98003, it is worth more than 27% of them ($447,333 against a typical $554,977), its price per square foot is higher than 90% of them ($426 against a typical $325), it is bigger than 21% of them (1,050 ft² against a typical 1,600 ft²), its lot is bigger than 44% of them (0.22 ac against a typical 0.23 ac) and it is newer than 3% of them (1953 against a typical 1979). Measured against all of King County, it is worth more than 9% 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 1237 S 312th St, Federal Way, WA?

The 2026 property tax bill for 1237 S 312th St, Federal Way, WA was $4,317. The county assessed it at $415,000.

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