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800 E Union St, Seattle, WA 98122 Property Records

King County property record for 800 E Union St, Seattle, WA 98122 · Last verified July 2026

Property Summary

Property TypeAuditorium
Details946,212 sqft · built 1990
Lot Size1.57 acres (68,648 sqft)
OwnerCompany Name on File
Tax Bill$14,859 (2024)
Flood ZoneZone X (minimal risk)
APN197820-0105

Property Details

APN / Parcel Number

Primary APN197820-0105
Alternative APN
  • 197820010506

Interior

Stories6 Stories
Building Area946,212 sqft Gross Area
ElevatorElevator

Exterior

Year BuiltBuilt 1990
Effective Year BuiltEffective 1999
Architectural StyleCustom Design
Construction TypeSteel Frame
Lot Area68,648 sqft
Lawn SprinklersLawn Sprinklers

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemHVAC
SewerMunicipal
Water SourceCommercial

Location & Zoning

Account Number197820010506
Street Address800 E UNION ST
CitySEATTLE
StateWA
Zip98122-3821
Property CategoryCommercial
Property TypeCommercial > Retail > Auditorium
Legal DescriptionDENNYS AA BROADWAY ADD LOTS 1 THRU 5 & 8 BLK 107 IN A A DENNYS BROADWAY ADD LESS STS & STATE HWY; TGW VAC ALLEY AS VACATED BY CITY OF SEATTLE ORD NO 113656 & AMENDED BY ORD NO 113992 TGW LOTS 2-3 & 6-7 & 10-11 BLK 65 IN A A DENNYS 5TH ADD TGW POR OF
Legal Range04
Legal Township25
Legal Section32
Legal SubdivisionDENNYS A A BROADWAY ADD
Legal Block107
Legal Lot Number1-5&8
JurisdictionKING WA
Township / Civil DivisionSEATTLE
Census Block Group1
Census Block1011
Census Tract8200

Owner

Source: King County records · APN 197820-0105

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 Address705 PIKE ST, SEATTLE, WA 98101-2310
Owner TypeCompany

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last Transfer DateNov 29, 2010
Transfer Doc0000000870
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
2025$564,613,500 Land $102,972,000 Building $461,641,500$564,613,500 Land $102,972,000 Building $461,641,500
2024$14,859.00 (+14.88%) Additional exemption filed
2022$12,934.00 Additional exemption filed

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
Special Flood Hazard AreaNo
Flood HazardMinimal
500-Year FloodplainNo

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.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 181 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
XfinityCable2,000 / 2,000
Radiate HoldingsFiber2,000 / 2,000
Radiate HoldingsCable1,500 / 50
AT&TFixed Wireless100 / 20

May also be available at this address: Verizon, T-Mobile USA, Lumen Technologies, Google Fiber, Xfinity, Hunter Communications & Technologies. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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