503 E Thomas St, Seattle, WA 98102 Property Records

King County property record for 503 E Thomas St, Seattle, WA 98102 · Last verified July 2026

Property Summary

Property TypeApartments (5+ Units)
Details9,900 sqft · built 1929
Lot Size0.165 acres (7,200 sqft)
OwnerCompany Name on File
Tax Bill$46,985 (2026)
Flood ZoneZone X (minimal risk)
APN684820-0565

Property Details

APN / Parcel Number

Primary APN684820-0565
Alternative APN
  • 684820056506

Interior

Units24 Units
Stories3 Stories
Building Area9,900 sqft Adjusted Area
Gross Area14,855 sqft
Security AlarmSecurity Alarm

Exterior

Year BuiltBuilt 1929
Effective Year BuiltEffective 1995
Architectural StyleCustom Design
Exterior MaterialBrick Veneer
Construction TypeMasonry / Concrete Block
Lot Area7,200 sqft (0.165 acres)
View / LotMountain

Utilities, Heating & Cooling

Heating SystemHot Water
SewerMunicipal
Water SourceCommercial

Location & Zoning

Account Number684820056506
Street Address503 E THOMAS ST
CitySEATTLE
StateWA
Zip98102-5359
Property CategoryResidential
Property TypeResidential > Multi-Unit > Apartments (5+ Units)
Legal DescriptionPONTIUS 2ND ADD SUPL PLAT BLOCK: 47 PLAT LOT: 1
Legal Range04
Legal Township25
Legal Section29
Legal SubdivisionPONTIUS 2ND ADD SUPL
Legal Block47
Legal Lot Number1
JurisdictionKING WA
Township / Civil DivisionSEATTLE
Census Block Group1
Census Block1003
Census Tract7406

Owner

Source: King County records · APN 684820-0565

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 RecordCompany Name on File
Mailing Address1620 BROADWAY, 201, SEATTLE, WA 98122-2564
Owner TypeCompany

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleAug 01, 1990
Deed SaleAug 01, 1990
Deed Document Number19901066
Deed Book / Page5 / 76
Record UpdatedSep 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$46,985.00 (-2.52%)
2025$4,600,000 (-9.75%) Land $2,880,000 Building $1,720,000$4,600,000 (-9.75%) Land $2,880,000 Building $1,720,000
2024$48,201.00 (+8.2%)$5,097,000 (-4.64%) Land $2,880,000 Building $2,217,000$5,097,000 (-4.64%) Land $2,880,000 Building $2,217,000
2022$44,550.00$5,345,000 Land $2,880,000 Building $2,465,000$5,345,000 Land $2,880,000 Building $2,465,000

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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