503 18th Ave E, Seattle, WA 98112 Property Records

King County property record for 503 18th Ave E, Seattle, WA 98112 · Last verified July 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms4 Beds
Bathrooms2.25 Baths
Year BuiltBuilt 1911
Square Footage2,760 sqft Living Area
Lot Size5,400 sqft (0.124 acres)
GarageCarport, 200 sqft
OccupancyOwner Occupied
Tax Bill$15,075.00 (2026)

Property Details

APN / Parcel Number

Primary APN423240-0395
Alternative APN
  • 423240039507

Interior

Bedrooms4 Beds
Full Baths2.25 Baths
Partial Baths2 Partial Baths
Building Area2,760 sqft Living Area
Gross Area3,200 sqft Gross Area
1st Floor1,590 sqft 1st Floor
Upper Floors1,170 sqft Upper Floors
Basement Area440 sqft Basement
Stories1 Stories
FireplaceFireplace
Fireplaces1 Fireplaces

Exterior

Year BuiltBuilt 1911
Effective Year BuiltEffective 1911
Lot Area5,400 sqft (0.124 acres)
Parking Spaces1 Parking Spaces
Garage TypeCarport Garage
Garage Area200 sqft Garage
CarportCarport
Carport Area200 sqft Carport
Deck Area320 sqft Deck
PorchOpen Porch
Porch Area110 sqft Porch

Utilities and HVAC

Heating SystemHeat Pump Heating
Heating FuelElectric Heating Fuel
SewageMunicipal Sewage
Water SourceCommercial Water Source

Location & Zoning

Account Number423240039507
Street Address503 18TH AVE E
CitySEATTLE
StateWA
Zip98112-4617
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionLAWS ADD PLAT BLOCK: 14 PLAT LOT: 9
Legal Range04
Legal Township25
Legal Section28
Legal SubdivisionLAWS ADD
Legal Block14
Legal Lot Number9
JurisdictionKING WA
Minor Civil DivisionSEATTLE
Census Blockgroup1
Census Block1010
Census Tract7600

Owner

Source: King County records · APN 423240-0395

Assessment roll updated July 7, 2026 · Last verified July 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of RecordIndividual Name on File
Mailing Address503 18TH AVE E, SEATTLE, WA 98112-4617
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Record RefreshedSep 20, 2026

Tax Assessment & Valuation

Source: King County records · Assessment roll updated July 7, 2026 · Last verified July 2026

Property Jurisdictions

TypeName
StateWashington
CountyKing County
MunicipalitySeattle City
Unified School DistrictSeattle Public Schools (PK - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

YearTax BillAssessed ValueAssessed Market Value
2026$15,075.00 (+5.77%)
2025$1,448,000 (-1.83%) Land $954,000 Building $494,000$1,448,000 (-1.83%) Land $954,000 Building $494,000
2024$14,253.00 (+5.27%)$1,475,000 (-6.82%) Land $954,000 Building $521,000$1,475,000 (-6.82%) Land $954,000 Building $521,000
2022$13,540.00$1,583,000 Land $592,000 Building $991,000$1,583,000 Land $592,000 Building $991,000

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, King County (53033C), updated September 23, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
Flood HazardMinimal
500-Year FloodplainNo
Special Flood Hazard AreaNo

Wildfire

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.

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