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Single Family ResidenceResidential
$2,299,558$548 / 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 Oct 21, 2026
Last sold for $1,419,990 on Oct 31, 2017

21849 218TH PL SE

SAMMAMISH, WA
4
Beds
3.5
Baths
4,200 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
2017
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

$2.3M
$2.2M low$2.4M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,419,990 · Oct 31, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$19,900 (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.$2,254,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$486,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,768,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$2,012,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$2,254,000

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.0.16
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, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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
Eastlake High SchoolA+
High · Grades 9–12 · 0.8 mi
E
Samantha Smith Elementary SchoolA+
Elementary · Grades KG–5 · 1.3 mi
M
Inglewood Middle SchoolA+
Middle · Grades 6–8 · 1.6 mi

District: Lake Washington School District

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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

21849 218th 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 95% of homes in King County
  • Bigger than 96% of homes in King County
  • Has a smaller lot than 67% of homes in King County
  • Newer than 94% of homes in King County

How it measures up in King County

The dot is this home. The mark in the middle is the typical home in King County.

Estimated value$2,299,558
CheaperTypical $834,640Pricier

Pricier than 95% of homes nearby

Price per ft²$548
CheaperTypical $500Pricier

Pricier than 60% of homes nearby

Living area4,200 ft²
SmallerTypical 1,850 ft²Bigger

Bigger than 96% of homes nearby

Lot size0.16 ac
SmallerTypical 0.2 acBigger

Bigger than 33% of homes nearby

Year built2017
OlderTypical 1979Newer

Newer than 94% of homes nearby

How 21849 218th Pl Se ranks against every home in each area.
MeasureThis homeKing County
Estimated valuepricier than$2,299,55895% of homes
Price per ft²pricier than$54860% of homes
Living areabigger than4,200 ft²96% of homes
Lot sizebigger than0.16 ac33% of homes
Year builtnewer than201794% of homes

About 21849 218th Pl Se

How much is 21849 218th Pl Se, Sammamish, WA worth?

The TopHap Estimate for 21849 218th Pl Se, Sammamish, WA is $2,299,558 as of Oct 21, 2026. The likely range is $2,207,311 to $2,391,805. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21849 218th Pl Se, Sammamish, WA last sell?

21849 218th Pl Se, Sammamish, WA last sold on Oct 31, 2017 for $1,419,990, according to the county's recorded deed.

How big is 21849 218th Pl Se, Sammamish, WA?

21849 218th Pl Se, Sammamish, WA has 4 bedrooms, 3.5 bathrooms, 4,200 square feet of living space and a 0.16-acre lot.

When was 21849 218th Pl Se, Sammamish, WA built?

21849 218th Pl Se, Sammamish, WA was built in 2017, making it 9 years old. The building has 2 stories.

What schools serve 21849 218th Pl Se, Sammamish, WA?

21849 218th Pl Se, Sammamish, WA is assigned to Eastlake High School (high), rated A+; Samantha Smith Elementary School (elementary), rated A+; Inglewood Middle School (middle), rated A+. All sit in Lake Washington School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21849 218th Pl Se, Sammamish, WA compare to other homes in King County?

Among the 666,218 homes in King County, it is worth more than 95% of them ($2,299,558 against a typical $834,640), its price per square foot is higher than 60% of them ($548 against a typical $500), it is bigger than 96% of them (4,200 ft² against a typical 1,850 ft²), its lot is bigger than 33% of them (0.16 ac against a typical 0.2 ac) and it is newer than 94% of them (2017 against a typical 1979). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 21849 218th Pl Se, Sammamish, WA?

The 2026 property tax bill for 21849 218th Pl Se, Sammamish, WA was $19,900. The county assessed it at $2,254,000.

More homes on 218th Pl Se

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Assigned schools

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