3121 Cascadia Ave S, Seattle, WA 98144 Property Records

King County property record for 3121 Cascadia Ave S, Seattle, WA 98144 · Last verified July 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms5 Beds
Bathrooms3.25 Baths
Year BuiltBuilt 1929
Square Footage4,510 sqft Living Area
Lot Size10,842 sqft (0.249 acres)
OccupancyOwner Occupied
Last Sale$3,050,000 (2022)
Tax Bill$30,489.00 (2026)

Property Details

APN / Parcel Number

Primary APN570000-3470
Alternative APN
  • 570000347007

Interior

Bedrooms5 Beds
Full Baths3.25 Baths
Partial Baths2 Partial Baths
Building Area4,510 sqft Living Area
Gross Area4,770 sqft Gross Area
1st Floor1,640 sqft 1st Floor
2nd Floor1,150 sqft 2nd Floor
Upper Floors720 sqft Upper Floors
Basement Area1,260 sqft Basement
Finished Basement1,000 sqft Finished
Unfinished Basement260 sqft Unfinished
Stories2 Stories
FireplaceFireplace
Fireplaces1 Fireplaces

Exterior

Year BuiltBuilt 1929
Effective Year BuiltEffective 1929
Exterior MaterialBrick Exterior
Lot Area10,842 sqft (0.249 acres)
Parking Spaces1 Parking Spaces
Garage TypeDetached Garage
Garage Area380 sqft Garage
Pool Area480 sqft Pool
PorchOpen Porch
Porch Area90 sqft Porch

Utilities and HVAC

Heating SystemRadiant Heating
Heating FuelElectric Heating Fuel
SewageMunicipal Sewage
Water SourceCommercial Water Source

Location & Zoning

Account Number570000347007
Street Address3121 CASCADIA AVE S
CitySEATTLE
StateWA
Zip98144-6215
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionMOUNT BAKER PARK ADD NLY 1/2 OF 7 & ALL 8
Legal Range04
Legal Township24
Legal Section10
Legal SubdivisionMOUNT BAKER PARK ADD
Legal Block49
Legal Lot Number7-8
JurisdictionKING WA
Minor Civil DivisionSEATTLE
Census Blockgroup3
Census Block3011
Census Tract9500

Owner

Source: King County records · APN 570000-3470

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 Record2 Individual Names on File
Mailing Address3121 CASCADIA AVE S, SEATTLE, WA 98144-6215
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity
VestingHusband And Wife

Deeds, Mortgages & Sale History

DateDocument
May 22, 2023Deed of Trust, Mortgage · Conventional Mortgage
ROCKET MORTGAGE LLC
Oct 27, 2022Warranty Deed, Transfer · Conventional Mortgage
ROCKET MORTGAGE LLC
Mar 22, 2021Deed of Trust, Mortgage · Conventional Mortgage
QUICKEN LOANS LLC
Nov 01, 2017Deed of Trust, Mortgage · Conventional Mortgage
UNITED WHOLESALE MORTGAGE
Oct 11, 2019Deed of Trust, Mortgage · Line of Credit
BOEING EMPS CU

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleOct 27, 2022 · Amount on Record
Deed SaleOct 27, 2022 · Amount on Record
Prior SaleAug 02, 2000 · Amount on Record
Deed Doc Number2022534
Record RefreshedSep 20, 2026

May 2023: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionKING WA
Property Address3121 CASCADIA AVE S, SEATTLE, WA 98144-6215
Transaction TypeMortgage
Record UpdatedMay 30, 2023

Transferred To (Grantee/Buyer)

NameVerified Name
Address3121 CASCADIA AVE S, SEATTLE, WA 98144-6215

Mortgage

Document Number0000000139
DateMay 22, 2023
Instrument20230522000139
Lender
NameROCKET MORTGAGE LLC
TypeMortgage Company
AddressDETROIT, MI 48226
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term181 Months
DueJun 01, 2038

October 2022: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionKING WA
Recording DateOct 27, 2022
Property Address3121 CASCADIA AVE S, SEATTLE, WA 98144-6215
Document Number0000000534
Map ReferenceVOL 16 PG 3
Instrument DateOct 12, 2022
Instrument20221027000534
Transaction TypeTransfer
Record UpdatedNov 08, 2022
Title CompanyE-CHICAGO TITLE, CHICAGO TITLE

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$76,305.00
Amount AccuracyFull Amount Stated
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address3121 CASCADIA AVE S, SEATTLE, WA 98144-6215

Mortgage

Document Number0000000535
DateOct 27, 2022
Instrument20221027000535
Lender
NameROCKET MORTGAGE LLC
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term181 Months
DueNov 01, 2037

March 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionKING WA
Property Address3121 CASCADIA AVE S, SEATTLE, WA 98144-6215
Transaction TypeMortgage
Record UpdatedApr 05, 2021
Title CompanyRAINIER TITLE

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000001602
DateMar 22, 2021
Instrument20210322001602
Lender
NameQUICKEN LOANS LLC
TypeMortgage Company
AddressDETROIT, MI 48226
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term241 Months
DueApr 01, 2041

November 2017: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionKING WA
Property Address3121 CASCADIA AVE S, SEATTLE, WA 98144-6215
Transaction TypeMortgage
Record UpdatedFeb 05, 2021
Title CompanyRAINIER TITLE

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000001325
DateNov 01, 2017
Instrument20171101001325
Lender
NameUNITED WHOLESALE MORTGAGE
TypeMortgage Company
AddressTROY, MI 48083
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueNov 01, 2047

October 2019: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionKING WA
Property Address3121 CASCADIA AVE S, SEATTLE, WA 98144-6215
Document Number0000000175
Instrument DateOct 11, 2019
Transaction TypeMortgage
Record UpdatedNov 07, 2019
Title CompanyOTHER

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipHusband And Wife
Address3121 CASCADIA AVE S SEATTLE WA 981446215, SEATTLE, WA 98144-6215

Mortgage

Document Number0000000175
DateOct 24, 2019
Instrument201910240175
Lender
NameBOEING EMPS CU
TypeCredit Union
AddressSEATTLE, WA 98124-9750
Agreement
TypeLine of Credit
AmountAmount Recorded
Term300 Months
DueOct 23, 2044
Interest
Rate TypeAdjustable Rate

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$30,489.00 (+16.86%)
2025$2,908,000 (+8.83%) Land $1,387,000 Building $1,521,000$2,908,000 (+8.83%) Land $1,387,000 Building $1,521,000
2024$26,090.00 (+11.2%)$2,672,000 (-2.05%) Land $1,387,000 Building $1,285,000$2,672,000 (-2.05%) Land $1,387,000 Building $1,285,000
2022$23,462.00$2,728,000 Land $1,293,000 Building $1,435,000$2,728,000 Land $1,293,000 Building $1,435,000

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.

Historic Designation

Source: NPS National Register of Historic Places · August 1, 2026 release · Last verified October 2026

Historic DistrictWithin the Mount Baker Park Historic District
listed 2018 · 649 contributing resources · NRIS 100002975

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

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