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Single Family ResidenceResidential
$1,547,085$409 / 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 Oct 21, 2026
Last sold for $1,450,000 on Apr 23, 2021

8403 121ST PL SE

NEWCASTLE, WA 98056
4
Beds
3.3
Baths
3,780 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
2016
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.5M
$1.4M low$1.7M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,450,000 · Apr 23, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$15,815 (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.$1,706,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$750,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$956,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,598,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,706,000

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.39
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
24
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.
96
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
32
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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.0.14
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 · 250 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
Hazelwood Elementary SchoolA
Elementary · Grades KG–5 · 0.8 mi
M
Ridson Middle SchoolB-
Middle · Grades 6–8 · 1.0 mi
H
Hazen High SchoolB
High · Grades 9–12 · 2.1 mi

District: Renton School District

Neighborhood · ZIP 98056These 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.95
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.114
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.278

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.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.4%
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.36,397
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,344 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$103,820
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$126,793
Average tempThe average temperature here across a full year.52°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%

Owner Tools

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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

8403 121st Pl Se 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 92% of homes in Renton 98056
  • Costs less per square foot than 70% of homes in King County
  • Bigger than 95% of homes in Renton 98056
  • Has a smaller lot than 74% of homes in Renton 98056
  • Newer than 95% of homes in Renton 98056

What homes are worth in Renton 98056

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

This home
$259K$2.2M

This home is worth more than 92% of homes in Renton 98056.

How it measures up in Renton 98056

The dot is this home. The mark in the middle is the typical home in Renton 98056.

Estimated value$1,547,085
CheaperTypical $794,123Pricier

Pricier than 92% of homes nearby

Price per ft²$409
CheaperTypical $444Pricier

Pricier than 39% of homes nearby

Living area3,780 ft²
SmallerTypical 1,920 ft²Bigger

Bigger than 95% of homes nearby

Lot size0.14 ac
SmallerTypical 0.19 acBigger

Bigger than 26% of homes nearby

Year built2016
OlderTypical 1982Newer

Newer than 95% of homes nearby

How 8403 121st Pl Se ranks against every home in each area.
MeasureThis homeRenton 98056King County
Estimated valuepricier than$1,547,08592% of homes84% of homes
Price per ft²pricier than$40939% of homes30% of homes
Living areabigger than3,780 ft²95% of homes94% of homes
Lot sizebigger than0.14 ac26% of homes26% of homes
Year builtnewer than201695% of homes93% of homes

About 8403 121st Pl Se

How much is 8403 121st Pl Se, Newcastle, WA worth?

The TopHap Estimate for 8403 121st Pl Se, Newcastle, WA is $1,547,085 as of Oct 21, 2026. The likely range is $1,402,067 to $1,692,103. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 8403 121st Pl Se, Newcastle, WA last sell?

8403 121st Pl Se, Newcastle, WA last sold on Apr 23, 2021 for $1,450,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 8403 121st Pl Se, Newcastle, WA?

8403 121st Pl Se, Newcastle, WA has 4 bedrooms, 3.3 bathrooms, 3,780 square feet of living space and a 0.14-acre lot.

When was 8403 121st Pl Se, Newcastle, WA built?

8403 121st Pl Se, Newcastle, WA was built in 2016, making it 10 years old. The building has 2 stories.

What schools serve 8403 121st Pl Se, Newcastle, WA?

8403 121st Pl Se, Newcastle, WA is assigned to Hazelwood Elementary School (elementary), rated A; Ridson Middle School (middle), rated B-; Hazen High School (high), rated B. All sit in Renton School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 8403 121st Pl Se, Newcastle, WA compare to other homes in Renton 98056?

Among the 10,545 homes in Renton 98056, it is worth more than 92% of them ($1,547,085 against a typical $794,123), its price per square foot is higher than 39% of them ($409 against a typical $444), it is bigger than 95% of them (3,780 ft² against a typical 1,920 ft²), its lot is bigger than 26% of them (0.14 ac against a typical 0.19 ac) and it is newer than 95% of them (2016 against a typical 1982). Measured against all of King County, it is worth more than 84% 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 8403 121st Pl Se, Newcastle, WA?

The 2026 property tax bill for 8403 121st Pl Se, Newcastle, WA was $15,815. The county assessed it at $1,706,000.

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