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Single Family ResidenceResidential
$721,316$321 / 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 96How 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 $700,000 on Aug 13, 2018

15821 12TH PL SW

NORMANDY PARK, WA 98166
4
Beds
2.8
Baths
2,250 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.
0.23 ac
Lot SizeThe size of the land the home sits on, from county records.
1918
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$721K
$693K low$749K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$700,000 · Aug 13, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,520 (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.$723,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$316,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$407,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$728,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$723,000

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.53
100
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
11
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
43
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
92
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
23
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.2 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.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
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.2000
Lot (acres)The size of the land the home sits on, from county records.0.23
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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.Deck · 350 ft²Porch · 340 ft²

Transaction History(4)

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
Gregory Heights Elementary SchoolC
Elementary · Grades PK–5 · 0.3 mi
M
Sylvester Middle SchoolC+
Middle · Grades 6–8 · 0.5 mi
H
Highline High SchoolD-
High · Grades 9–12 · 1.0 mi

District: Highline School District

Neighborhood · ZIP 98166These 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.92
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.109
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.267

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.3%
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.22,270
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,044 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$107,273
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$140,837
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.38 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

15821 12th Pl Sw 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 77% of homes in Burien City Center
  • Costs less per square foot than 88% of homes in Seattle 98166
  • Bigger than 76% of homes in Burien City Center
  • Older than 98% of homes in Seattle 98166

What homes are worth in Seattle 98166

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

This home
$289K$2.2M

This home is worth more than 41% of homes in Seattle 98166.

How it measures up in Seattle 98166

The dot is this home. The mark in the middle is the typical home in Seattle 98166.

Estimated value$721,316
CheaperTypical $804,599Pricier

Pricier than 41% of homes nearby

Price per ft²$321
CheaperTypical $427Pricier

Pricier than 12% of homes nearby

Living area2,250 ft²
SmallerTypical 2,010 ft²Bigger

Bigger than 60% of homes nearby

Lot size0.23 ac
SmallerTypical 0.26 acBigger

Bigger than 41% of homes nearby

Year built1918
OlderTypical 1956Newer

Newer than 2% of homes nearby

How 15821 12th Pl Sw ranks against every home in each area.
MeasureThis homeBurien City CenterSeattle 98166King County
Estimated valuepricier than$721,31677% of homes41% of homes40% of homes
Price per ft²pricier than$32121% of homes12% of homes14% of homes
Living areabigger than2,250 ft²76% of homes60% of homes66% of homes
Lot sizebigger than0.23 ac58% of homes41% of homes58% of homes
Year builtnewer than19184% of homes2% of homes5% of homes

About 15821 12th Pl Sw

How much is 15821 12th Pl Sw, Normandy Park, WA worth?

The TopHap Estimate for 15821 12th Pl Sw, Normandy Park, WA is $721,316 as of Aug 30, 2026. The likely range is $693,178 to $749,454. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 15821 12th Pl Sw, Normandy Park, WA last sell?

15821 12th Pl Sw, Normandy Park, WA last sold on Aug 13, 2018 for $700,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 15821 12th Pl Sw, Normandy Park, WA?

15821 12th Pl Sw, Normandy Park, WA has 4 bedrooms, 2.8 bathrooms, 2,250 square feet of living space and a 0.23-acre lot.

When was 15821 12th Pl Sw, Normandy Park, WA built?

15821 12th Pl Sw, Normandy Park, WA was built in 1918, making it 108 years old. The building has 1 story.

What schools serve 15821 12th Pl Sw, Normandy Park, WA?

15821 12th Pl Sw, Normandy Park, WA is assigned to Gregory Heights Elementary School (elementary), rated C; Sylvester Middle School (middle), rated C+; Highline High School (high), rated D-. All sit in Highline School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 15821 12th Pl Sw, Normandy Park, WA compare to other homes in Seattle 98166?

Among the 7,214 homes in Seattle 98166, it is worth more than 41% of them ($721,316 against a typical $804,599), its price per square foot is higher than 12% of them ($321 against a typical $427), it is bigger than 60% of them (2,250 ft² against a typical 2,010 ft²), its lot is bigger than 41% of them (0.23 ac against a typical 0.26 ac) and it is newer than 2% of them (1918 against a typical 1956). Measured against all of King County, it is worth more than 40% 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 15821 12th Pl Sw, Normandy Park, WA?

The 2026 property tax bill for 15821 12th Pl Sw, Normandy Park, WA was $8,520. The county assessed it at $723,000.

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