1806 20th Ave, Seattle, WA 98122 Property Records

King County property record for 1806 20th Ave, Seattle, WA 98122

Property Summary

Property TypeDuplex
Details2 bd · 1 ba · 2,950 sqft · built 1911
Lot Size0.152 acres (6,600 sqft)
OwnerIndividual Name on Record
Last Sale$101,100 (Aug 1992)
Tax Bill$21,815 (2026)
Deeds & MortgagesDec 2025 Mortgage
Flood ZoneZone X (minimal risk)
APN304320-0095

Property Details

APN / Parcel Number

Primary APN304320-0095
Alternative APN
  • 304320009505

Interior

Bedrooms2 Beds
Full Baths1 Bath
Stories1 Story
Building Area2,950 sqft Living Area
1st Floor Area1,250 sqft
Upper Floors Area450 sqft
Basement Area1,250 sqft
Finished Basement1,250 sqft

Exterior

Year BuiltBuilt 1911
Effective Year BuiltEffective 1911
Architectural StyleDuplex Single
Lot Area6,600 sqft (0.152 acres)
Garage TypeDetached
Garage Area990 sqft
Parking Spaces4 Parking Spaces
PorchOpen Porch
Porch Area90 sqft

Utilities, Heating & Cooling

Heating SystemHot Water
Heating FuelGas
SewerMunicipal
Water SourceCommercial

Location & Zoning

Account Number304320009505
Street Address1806 20TH AVE
CitySEATTLE
StateWA
Zip98122-2810
Property CategoryResidential
Property TypeResidential > Multi-Unit > Duplex
Local Zoning CodeNC2-75 (M1
Legal DescriptionHALLS ADD TO SEATTLE N 35 FT OF 2 & S 20 FT OF 3
Legal Range04
Legal Township25
Legal Section28
Legal SubdivisionHALLS ADD TO SEATTLE
Legal Block15
Legal Lot Number2-3
JurisdictionKING WA
Township / Civil DivisionSEATTLE
Census Block Group1
Census Block1000
Census Tract7902

Owner

Source: King County records, as of July 7, 2026

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

Owner of RecordIndividual Name on Record
Mailing Address1806 20TH AVE, SEATTLE, WA 98122-2810
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleAug 28, 1992 · Amount on Record
Deed SaleAug 28, 1992 · Amount on Record
Deed Document Number19929041186
Deed Book / Page2 / 86
Last Transfer DateMay 21, 2025
Transfer Doc0000000508
Record UpdatedSep 20, 2026

December 2025: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionKING WA
Property Address1806 20TH AVE, SEATTLE, WA 98122-2810
Transaction TypeMortgage
Record UpdatedDec 30, 2025

Transferred To (Grantee/Buyer)

NameVerified Name
Address1806 20TH AVE, SEATTLE, WA 98122-2810

Mortgage

Document Number0000000818
DateDec 19, 2025
Instrument20251219000818
Lender
NameTRISTAR FINANCE INC
TypeMortgage Company
AddressKIRKLAND, WA 98033
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueJan 1, 2056

Tax Assessment & Valuation

Source: King County assessment roll, as of July 7, 2026

Property Jurisdictions

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

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$21,815.00 (+7.65%)
2025$2,101,000 (-) Land $2,100,000 Building $1,000$2,101,000 (-) Land $2,100,000 Building $1,000
2024$20,265.00 (+63.37%)$2,101,000 (+45.6%) Land $2,100,000 Building $1,000$2,101,000 (+45.6%) Land $2,100,000 Building $1,000
2022$12,404.00$1,443,000 Land $1,268,000 Building $175,000$1,443,000 Land $1,268,000 Building $175,000

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

Flood

Source: FEMA National Flood Hazard Layer, effective September 23, 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

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

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskNot rated
no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemSEATTLE PUBLIC UTILITIES
serves 1,161,961 people · EPA ID WA5377050
Water SourceSurface water
Last State InspectionJul 2025
Lead2 ppb (2025)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 878 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable · Fiber in parts of the area
2,000 / 2,000
Astound Broadband
Cable · Fiber in parts of the area
1,500 / 50
Verizon
Fixed Wireless
1,000 / 75
AT&T
Fixed Wireless
100 / 20
T-Mobile
Fixed Wireless
100 / 20

May also be available: CenturyLink, Google Fiber.

Nearby Properties on 20th Ave

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